A collection of common functions for Fiber with better performance, fewer allocations, and fewer dependencies.
Per-commit benchmark charts: https://gofiber.github.io/utils/benchmarks/
Each table below starts with the go test command that produced it. Maintainers refresh the
numbers with make benchupdate, or by commenting /bench-readme (arm64) or
/bench-readme-amd64 on a pull request.
Environment: goos: darwin goarch: arm64 pkg: github.com/gofiber/utils/v2 cpu: Apple M2 Pro
// go test ./... -benchmem -run=^$ -bench=Benchmark_ -count=1
// (swar's Benchmark_Load8_Fusion, an advisory codegen guard, is deliberately omitted)
# Case Conversion
Benchmark_ToLowerBytes/empty/fiber-12 599341221 1.970 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/empty/fiber/unsafe-12 613673802 1.951 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/empty/default-12 363300402 3.316 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/http-get/fiber-12 350302147 3.434 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/http-get/fiber/unsafe-12 250488015 4.803 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/http-get/default-12 65883986 18.03 ns/op 8 B/op 1 allocs/op
Benchmark_ToLowerBytes/http-get-upper/fiber-12 95234625 12.53 ns/op 3 B/op 1 allocs/op
Benchmark_ToLowerBytes/http-get-upper/fiber/unsafe-12 242418936 4.802 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/http-get-upper/default-12 86405012 13.85 ns/op 8 B/op 1 allocs/op
Benchmark_ToLowerBytes/header-content-type-mixed/fiber-12 52263289 22.74 ns/op 48 B/op 1 allocs/op
Benchmark_ToLowerBytes/header-content-type-mixed/fiber/unsafe-12 131711175 9.101 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/header-content-type-mixed/default-12 25312339 47.13 ns/op 48 B/op 1 allocs/op
Benchmark_ToLowerBytes/large-lower/fiber-12 120148472 10.02 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/large-lower/fiber/unsafe-12 100000000 10.57 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/large-lower/default-12 16746064 71.43 ns/op 64 B/op 1 allocs/op
Benchmark_ToLowerBytes/large-upper/fiber-12 46270634 26.82 ns/op 64 B/op 1 allocs/op
Benchmark_ToLowerBytes/large-upper/fiber/unsafe-12 100000000 10.71 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/large-upper/default-12 15734505 76.92 ns/op 64 B/op 1 allocs/op
Benchmark_ToLowerBytes/large-mixed/fiber-12 46607823 26.06 ns/op 64 B/op 1 allocs/op
Benchmark_ToLowerBytes/large-mixed/fiber/unsafe-12 100000000 10.86 ns/op 0 B/op 0 allocs/op
Benchmark_ToLowerBytes/large-mixed/default-12 16291084 73.76 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpperBytes/empty/fiber-12 607678140 1.976 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/empty/fiber/unsafe-12 611928006 1.981 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/empty/default-12 362632894 3.309 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/http-get/fiber-12 95358867 12.55 ns/op 3 B/op 1 allocs/op
Benchmark_ToUpperBytes/http-get/fiber/unsafe-12 249490471 4.905 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/http-get/default-12 79248020 14.63 ns/op 8 B/op 1 allocs/op
Benchmark_ToUpperBytes/http-get-upper/fiber-12 365516280 3.330 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/http-get-upper/fiber/unsafe-12 249981619 4.803 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/http-get-upper/default-12 64343162 19.01 ns/op 8 B/op 1 allocs/op
Benchmark_ToUpperBytes/header-content-type-mixed/fiber-12 52506741 22.69 ns/op 48 B/op 1 allocs/op
Benchmark_ToUpperBytes/header-content-type-mixed/fiber/unsafe-12 130478352 9.350 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/header-content-type-mixed/default-12 22415607 54.44 ns/op 48 B/op 1 allocs/op
Benchmark_ToUpperBytes/large-lower/fiber-12 44765679 26.92 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpperBytes/large-lower/fiber/unsafe-12 100000000 13.68 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/large-lower/default-12 14464340 110.7 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpperBytes/large-upper/fiber-12 100000000 11.98 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/large-upper/fiber/unsafe-12 83808488 13.94 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/large-upper/default-12 13142096 87.35 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpperBytes/large-mixed/fiber-12 33038661 32.75 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpperBytes/large-mixed/fiber/unsafe-12 100000000 10.93 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpperBytes/large-mixed/default-12 15034422 98.27 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpper/empty/fiber-12 595298628 2.309 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/empty/fiber/unsafe-12 595273404 2.021 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/empty/default-12 636980288 1.883 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/http-get/fiber-12 97025577 12.40 ns/op 3 B/op 1 allocs/op
Benchmark_ToUpper/http-get/fiber/unsafe-12 244711635 4.857 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/http-get/default-12 59790234 19.54 ns/op 8 B/op 1 allocs/op
Benchmark_ToUpper/http-get-upper/fiber-12 383218539 3.056 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/http-get-upper/fiber/unsafe-12 247851331 4.864 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/http-get-upper/default-12 223044249 5.182 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/header-content-type-mixed/fiber-12 52628502 24.13 ns/op 48 B/op 1 allocs/op
Benchmark_ToUpper/header-content-type-mixed/fiber/unsafe-12 127726341 9.233 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/header-content-type-mixed/default-12 11549816 104.0 ns/op 48 B/op 1 allocs/op
Benchmark_ToUpper/large-lower/fiber-12 42409070 26.04 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpper/large-lower/fiber/unsafe-12 100000000 11.00 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/large-lower/default-12 7051911 169.0 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpper/large-upper/fiber-12 123837582 9.590 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/large-upper/fiber/unsafe-12 100000000 10.83 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/large-upper/default-12 19115356 61.51 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/large-mixed/fiber-12 45872143 27.77 ns/op 64 B/op 1 allocs/op
Benchmark_ToUpper/large-mixed/fiber/unsafe-12 100000000 11.00 ns/op 0 B/op 0 allocs/op
Benchmark_ToUpper/large-mixed/default-12 5927710 203.1 ns/op 64 B/op 1 allocs/op
Benchmark_ToLower/empty/fiber-12 613625554 1.952 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/empty/fiber/unsafe-12 572670608 1.989 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/empty/default-12 644769141 1.863 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/http-get/fiber-12 395302272 3.034 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/http-get/fiber/unsafe-12 252231990 4.813 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/http-get/default-12 284202345 4.219 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/http-get-upper/fiber-12 100000000 12.08 ns/op 3 B/op 1 allocs/op
Benchmark_ToLower/http-get-upper/fiber/unsafe-12 252859507 4.816 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/http-get-upper/default-12 60415860 19.54 ns/op 8 B/op 1 allocs/op
Benchmark_ToLower/header-content-type-mixed/fiber-12 53446660 22.49 ns/op 48 B/op 1 allocs/op
Benchmark_ToLower/header-content-type-mixed/fiber/unsafe-12 131152108 9.153 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/header-content-type-mixed/default-12 18039788 66.79 ns/op 48 B/op 1 allocs/op
Benchmark_ToLower/large-lower/fiber-12 120227584 9.982 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/large-lower/fiber/unsafe-12 100000000 10.68 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/large-lower/default-12 24070928 48.79 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/large-upper/fiber-12 44699118 25.92 ns/op 64 B/op 1 allocs/op
Benchmark_ToLower/large-upper/fiber/unsafe-12 100000000 10.74 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/large-upper/default-12 7075200 170.0 ns/op 64 B/op 1 allocs/op
Benchmark_ToLower/large-mixed/fiber-12 46426453 26.01 ns/op 64 B/op 1 allocs/op
Benchmark_ToLower/large-mixed/fiber/unsafe-12 100000000 10.74 ns/op 0 B/op 0 allocs/op
Benchmark_ToLower/large-mixed/default-12 5682778 204.3 ns/op 64 B/op 1 allocs/op
# Add Trailing Slash
Benchmark_AddTrailingSlashBytes/empty-12 1000000000 0.5857 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashBytes/slash-only-12 1000000000 0.8694 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashBytes/short-no-slash-12 100000000 11.65 ns/op 4 B/op 1 allocs/op
Benchmark_AddTrailingSlashBytes/short-with-slash-12 1000000000 0.8867 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashBytes/path-no-slash-12 93543546 13.36 ns/op 16 B/op
8
1 alloc
10BC8
s/op
Benchmark_AddTrailingSlashBytes/path-with-slash-12 1000000000 0.9011 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashString/empty-12 1000000000 0.2926 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashString/slash-only-12 1000000000 0.4482 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashString/short-no-slash-12 100000000 11.37 ns/op 4 B/op 1 allocs/op
Benchmark_AddTrailingSlashString/short-with-slash-12 1000000000 0.4502 ns/op 0 B/op 0 allocs/op
Benchmark_AddTrailingSlashString/path-no-slash-12 82427726 14.41 ns/op 16 B/op 1 allocs/op
Benchmark_AddTrailingSlashString/path-with-slash-12 1000000000 0.4529 ns/op 0 B/op 0 allocs/op
# EqualFold
Benchmark_EqualFoldBytes/fiber-12 67368261 18.48 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFoldBytes/default-12 17774803 65.91 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold/fiber-12 80501566 14.75 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold/default-12 18314365 65.96 ns/op 0 B/op 0 allocs/op
# Search
// amd64 note: IndexAny2/IndexAny3 dispatch to package simd for 32+ byte
// inputs; these arm64 rows keep the portable SWAR path. For amd64 numbers
// see the Benchmark_Memchr2/Benchmark_Memchr3 rows in the simd section
// below (the kernels these functions dispatch to).
Benchmark_IndexAny2/7B/swar-12 282163779 4.297 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/7B/scalar-12 314553402 3.826 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/7B/stdlib-indexany-12 50085909 23.97 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/8B/swar-12 522780714 2.289 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/8B/scalar-12 271494799 4.206 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/8B/stdlib-indexany-12 44831599 26.78 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/16B/swar-12 393245086 3.047 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/16B/scalar-12 168476984 7.117 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/16B/stdlib-indexany-12 100000000 10.03 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/32B/swar-12 252199587 4.802 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/32B/scalar-12 84105762 14.27 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/32B/stdlib-indexany-12 70291048 17.37 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/64B/swar-12 144335962 8.290 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/64B/scalar-12 42694686 28.60 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/64B/stdlib-indexany-12 37615540 32.23 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/512B/swar-12 20231538 59.71 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/512B/scalar-12 5071586 233.6 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny2/512B/stdlib-indexany-12 4448119 274.2 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/7B/swar-12 221889592 5.397 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/7B/scalar-12 240859849 4.977 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/8B/swar-12 445742876 2.689 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/8B/scalar-12 211981612 5.620 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/16B/swar-12 326475568 3.739 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/16B/scalar-12 100000000 10.31 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/32B/swar-12 196365920 6.112 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/32B/scalar-12 60021255 19.81 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/64B/swar-12 100000000 10.98 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/64B/scalar-12 31180405 38.97 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/512B/swar-12 15466316 79.22 ns/op 0 B/op 0 allocs/op
Benchmark_IndexAny3/512B/scalar-12 3911382 307.1 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-8B/swar-12 332497509 3.634 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-8B/scalar-12 491493494 2.408 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-32B/swar-12 149769112 7.928 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-32B/scalar-12 44041342 27.13 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/hit-32B/swar-12 138732252 8.758 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/hit-32B/scalar-12 33871633 30.73 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/hit-tail/swar-12 100000000 12.34 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/hit-tail/scalar-12 16138168 75.39 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-64B/swar-12 100000000 11.37 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-64B/scalar-12 17902330 67.78 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-512B/swar-12 17640939 67.65 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/miss-512B/scalar-12 2211582 544.4 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/long-hit-64B/swar-12 100000000 11.58 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/long-hit-64B/scalar-12 23906326 51.33 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/long-miss-64B/swar-12 100000000 11.33 ns/op 0 B/op 0 allocs/op
Benchmark_IndexFold/long-miss-64B/scalar-12 23553600 50.27 ns/op 0 B/op 0 allocs/op
# ASCII
// amd64 note: IsASCII dispatches to package simd for 32+ byte inputs;
// these arm64 rows keep the portable SWAR path. See the simd section
// below for amd64 numbers.
Benchmark_IsASCII/7B/swar-12 238699563 5.001 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/7B/scalar-12 292669958 4.064 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/8B/swar-12 439961722 2.687 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/8B/scalar-12 274732192 4.364 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/16B/swar-12 367179319 3.255 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/16B/scalar-12 179331987 6.706 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/32B/swar-12 368345228 3.271 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/32B/scalar-12 100000000 11.62 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/64B/swar-12 265505815 4.486 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/64B/scalar-12 57864440 21.33 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/512B/swar-12 47664915 25.14 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/512B/scalar-12 7081790 169.5 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/7B/swar-12 142234436 8.424 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/7B/scalar-12 142394628 8.174 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/8B/swar-12 401721262 3.099 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/8B/scalar-12 138047568 8.654 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/16B/swar-12 244592613 5.059 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/16B/scalar-12 75413396 15.94 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/32B/swar-12 138857455 8.875 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/32B/scalar-12 39539425 30.18 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/64B/swar-12 75193269 16.46 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/64B/scalar-12 20898807 57.81 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/512B/swar-12 9634008 124.9 ns/op 0 B/op 0 allocs/op
Benchmark_IndexNonQuotable/512B/scalar-12 2619062 460.6 ns/op 0 B/op 0 allocs/op
# Trim
Benchmark_TrimRight/fiber-12 587360972 2.043 ns/op 0 B/op 0 allocs/op
Benchmark_TrimRight/default-12 417142952 2.887 ns/op 0 B/op 0 allocs/op
Benchmark_TrimRightBytes/fiber-12 590828253 2.067 ns/op 0 B/op 0 allocs/op
Benchmark_TrimRightBytes/default-12 374548395 3.236 ns/op 0 B/op 0 allocs/op
Benchmark_TrimLeft/fiber-12 590822072 2.030 ns/op 0 B/op 0 allocs/op
Benchmark_TrimLeft/default-12 408184784 2.967 ns/op 0 B/op 0 allocs/op
Benchmark_TrimLeftBytes/fiber-12 592875732 2.033 ns/op 0 B/op 0 allocs/op
Benchmark_TrimLeftBytes/default-12 405921434 2.967 ns/op 0 B/op 0 allocs/op
Benchmark_Trim/fiber-12 317625432 3.758 ns/op 0 B/op 0 allocs/op
Benchmark_Trim/default-12 250173384 4.735 ns/op 0 B/op 0 allocs/op
Benchmark_Trim/default.trimspace-12 241883282 5.022 ns/op 0 B/op 0 allocs/op
Benchmark_TrimBytes/fiber-12 308885211 3.858 ns/op 0 B/op 0 allocs/op
Benchmark_TrimBytes/default-12 254064188 4.802 ns/op 0 B/op 0 allocs/op
Benchmark_TrimBytes/default.trimspace-12 224231778 5.330 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/empty-12 1000000000 0.3017 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/empty-12 583064172 2.074 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/spaces-12 387354229 3.059 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/spaces-12 320059388 3.651 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/ascii-word-12 345078337 3.535 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/ascii-word-12 270603267 4.465 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/auth-header-bearer-12 291494109 4.141 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/auth-header-bearer-12 224087944 5.329 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/auth-header-basic-12 390765345 3.047 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/auth-header-basic-12 258943531 4.718 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/accept-encoding-12 344369745 3.490 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/accept-encoding-12 277203638 4.347 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/content-type-12 344263705 3.506 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/content-type-12 276213367 4.343 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/x-forwarded-for-12 460119685 2.653 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/x-forwarded-for-12 296468840 4.058 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/query-params-12 330053276 3.520 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/query-params-12 275688495 4.352 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/ascii-long-12 275511898 4.342 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/ascii-long-12 206143018 5.807 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/no-trim-12 1000000000 0.5914 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/no-trim-12 451842741 2.634 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/fiber/mixed-whitespace-12 296083767 4.054 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpace/default/mixed-whitespace-12 224007750 5.294 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/empty-12 1000000000 0.2914 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/empty-12 519488766 2.352 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/spaces-12 410959255 2.966 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/spaces-12 315602949 3.827 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/ascii-word-12 341217429 3.519 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/ascii-word-12 247799318 4.667 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/auth-header-bearer-12 295130076 4.182 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/auth-header-bearer-12 209162235 5.685 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/auth-header-basic-12 393366796 3.053 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/auth-header-basic-12 240882009 4.930 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/accept-encoding-12 343673244 3.512 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/accept-encoding-12 250962042 4.642 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/content-type-12 344382758 3.516 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/content-type-12 250622116 4.693 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/x-forwarded-for-12 459435145 2.621 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/x-forwarded-for-12 276595178 4.359 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/query-params-12 341144192 3.526 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/query-params-12 255843174 4.873 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/ascii-long-12 270183530 4.445 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/ascii-long-12 189740618 6.335 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/no-trim-12 1000000000 0.5969 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/no-trim-12 406072189 2.941 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/fiber/mixed-whitespace-12 289382116 4.057 ns/op 0 B/op 0 allocs/op
Benchmark_TrimSpaceBytes/default/mixed-whitespace-12 218559462 5.493 ns/op 0 B/op 0 allocs/op
# Convert
Benchmark_ConvertToBytes/fiber-12 320332576 3.787 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/int-12 499429904 2.382 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/int8-12 614406423 1.965 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/int16-12 486644316 2.463 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/int32-12 495227163 2.422 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/int64-12 502362236 2.429 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/uint-12 561693333 2.101 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/uint8-12 611239028 1.965 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/uint16-12 573383422 2.127 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/uint32-12 575723191 2.093 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/uint64-12 575901750 2.089 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/string-12 613909396 1.959 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/[]uint8-12 96832432 12.11 ns/op 16 B/op 1 allocs/op
Benchmark_ToString/bool-12 608058547 1.990 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/float32-12 23195016 47.11 ns/op 4 B/op 1 allocs/op
Benchmark_ToString/float64-12 17204126 70.24 ns/op 4 B/op 1 allocs/op
Benchmark_ToString/time.Time-12 13103935 91.85 ns/op 24 B/op 1 allocs/op
Benchmark_ToString/time.Time#01-12 13198113 91.22 ns/op 24 B/op 1 allocs/op
Benchmark_ToString/[]string-12 65187865 18.35 ns/op 16 B/op 1 allocs/op
Benchmark_ToString/[]int-12 54417859 21.53 ns/op 8 B/op 1 allocs/op
Benchmark_ToString/[2]int-12 32691942 36.57 ns/op 16 B/op 1 allocs/op
Benchmark_ToString/[][]int-12 9382754 128.8 ns/op 112 B/op 6 allocs/op
Benchmark_ToString/[]interface_{}-12 10584483 114.5 ns/op 72 B/op 3 allocs/op
Benchmark_ToString/utils.MyStringer-12 365979882 3.277 ns/op 0 B/op 0 allocs/op
Benchmark_ToString/utils.CustomType-12 11649330 102.5 ns/op 16 B/op 1 allocs/op
Benchmark_ToString_concurrency/int-12 1000000000 0.2619 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/int8-12 1000000000 0.2202 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/int16-12 1000000000 0.2708 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/int32-12 1000000000 0.2658 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/int64-12 1000000000 0.2658 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/uint-12 1000000000 0.2281 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/uint8-12 1000000000 0.2223 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/uint16-12 1000000000 0.2396 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/uint32-12 1000000000 0.2273 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/uint64-12 1000000000 0.2271 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/string-12 1000000000 0.2117 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/[]uint8-12 213842515 5.718 ns/op 16 B/op 1 allocs/op
Benchmark_ToString_concurrency/bool-12 1000000000 0.2118 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/float32-12 201081819 6.011 ns/op 4 B/op 1 allocs/op
Benchmark_ToString_concurrency/float64-12 142000966 8.799 ns/op 4 B/op 1 allocs/op
Benchmark_ToString_concurrency/time.Time-12 71451783 18.04 ns/op 24 B/op 1 allocs/op
Benchmark_ToString_concurrency/time.Time#01-12 69313578 17.74 ns/op 24 B/op 1 allocs/op
Benchmark_ToString_concurrency/[]string-12 187564670 6.455 ns/op 16 B/op 1 allocs/op
Benchmark_ToString_concurrency/[]int-12 262707805 4.498 ns/op 8 B/op 1 allocs/op
Benchmark_ToString_concurrency/[2]int-12 129274200 8.777 ns/op 16 B/op 1 allocs/op
Benchmark_ToString_concurrency/[][]int-12 22638411 52.65 ns/op 112 B/op 6 allocs/op
Benchmark_ToString_concurrency/[]interface_{}-12 34120837 35.36 ns/op 72 B/op 3 allocs/op
Benchmark_ToString_concurrency/utils.MyStringer-12 1000000000 0.4259 ns/op 0 B/op 0 allocs/op
Benchmark_ToString_concurrency/utils.CustomType-12 54806094 25.95 ns/op 16 B/op 1 allocs/op
Benchmark_UnsafeBytes/unsafe-12 1000000000 0.5658 ns/op 0 B/op 0 allocs/op
Benchmark_UnsafeBytes/default-12 88407558 13.50 ns/op 16 B/op 1 allocs/op
Benchmark_UnsafeString/unsafe-12 1000000000 0.3545 ns/op 0 B/op 0 allocs/op
Benchmark_UnsafeString/default-12 100000000 12.09 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/0-12 395954607 3.023 ns/op 0 B/op 0 allocs/op
Benchmark_ByteSize/1-12 65295756 18.15 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/500-12 58264801 20.92 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1024-12 60886531 19.80 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1126-12 53409986 22.69 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1048576-12 60969927 19.41 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1153024-12 53647869 22.12 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1073741824-12 63792180 19.05 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1180696576-12 54560540 22.02 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1099511627776-12 64080169 18.85 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1209033293824-12 52957434 22.01 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1125899906842624-12 65629659 18.33 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1238050092875776-12 56535770 21.73 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1152921504606846976-12 64569356 18.56 ns/op 16 B/op 1 allocs/op
Benchmark_ByteSize/1267763295104794624-12 56481996 21.10 ns/op 16 B/op 1 allocs/op
# Format and Append
Benchmark_FormatUint/small/fiber-12 607527520 1.966 ns/op 0 B/op 0 allocs/op
Benchmark_FormatUint/small/strconv-12 607521366 1.973 ns/op 0 B/op 0 allocs/op
Benchmark_FormatUint/medium/fiber-12 64427509 19.04 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint/medium/strconv-12 59566404 20.42 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint/large/fiber-12 45395149 26.16 ns/op 24 B/op 1 allocs/op
Benchmark_FormatUint/large/strconv-12 45620366 26.38 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/small_pos/fiber-12 608898928 1.963 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt/small_pos/strconv-12 598721480 1.976 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt/small_neg/fiber-12 616958124 1.946 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt/small_neg/strconv-12 87181050 13.77 ns/op 3 B/op 1 allocs/op
Benchmark_FormatInt/medium_pos/fiber-12 63105722 19.12 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/medium_pos/strconv-12 57454753 20.70 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/medium_neg/fiber-12 63631222 19.10 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/medium_neg/strconv-12 61296942 20.17 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/large_pos/fiber-12 48604558 25.08 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/large_pos/strconv-12 45605844 26.25 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/large_neg/fiber-12 47388217 25.09 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/large_neg/strconv-12 45871998 26.10 ns/op 24 B/op 1 allocs/op
Benchmark_FormatUint32/fiber-12 63452196 18.63 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint32/strconv-12 59485942 20.08 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt32/fiber-12 63030724 18.98 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt32/strconv-12 61887302 19.69 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint16/fiber-12 80149611 14.48 ns/op 5 B/op 1 allocs/op
Benchmark_FormatUint16/strconv-12 77022440 15.43 ns/op 5 B/op 1 allocs/op
Benchmark_FormatInt16/fiber-12 79013646 15.23 ns/op 8 B/op 1 allocs/op
Benchmark_FormatInt16/strconv-12 79695165 15.24 ns/op 8 B/op 1 allocs/op
Benchmark_FormatUint8/fiber-12 599811685 1.947 ns/op 0 B/op 0 allocs/op
Benchmark_FormatUint8/strconv-12 84144096 14.18 ns/op 3 B/op 1 allocs/op
Benchmark_FormatInt8/fiber-12 630717244 1.985 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt8/strconv-12 83826201 14.24 ns/op 4 B/op 1 allocs/op
Benchmark_AppendUint/fiber-12 130817422 9.139 ns/op 0 B/op 0 allocs/op
Benchmark_AppendUint/strconv-12 100000000 10.08 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/small_neg/fiber-12 369512403 3.266 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/small_neg/strconv-12 213341739 5.627 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/medium_neg/fiber-12 125937435 9.531 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/medium_neg/strconv-12 122490632 9.791 ns/op 0 B/op 0 allocs/op
# Token
Benchmark_GenerateSecureToken/16_bytes-12 4565527 258.6 ns/op 24 B/op 1 allocs/op
Benchmark_GenerateSecureToken/32_bytes-12 4306404 280.8 ns/op 48 B/op 1 allocs/op
Benchmark_TokenGenerators/UUIDv4-12 4019139 288.2 ns/op 64 B/op 2 allocs/op
Benchmark_TokenGenerators/SecureToken-12 4360036 276.9 ns/op 48 B/op 1 allocs/op
# HTTP
Benchmark_GetMIME/fiber-12 22321272 53.90 ns/op 0 B/op 0 allocs/op
Benchmark_GetMIME/default-12 17492530 68.46 ns/op 0 B/op 0 allocs/op
Benchmark_ParseVendorSpecificContentType/vendorContentType-12 125467813 9.619 ns/op 0 B/op 0 allocs/op
Benchmark_ParseVendorSpecificContentType/defaultContentType-12 404169172 2.974 ns/op 0 B/op 0 allocs/op
Benchmark_StatusMessage/fiber-12 1000000000 0.3349 ns/op 0 B/op 0 allocs/op
Benchmark_StatusMessage/default-12 460456902 2.610 ns/op 0 B/op 0 allocs/op
# IP
Benchmark_IsIPv4/fiber-4 56396187 21.72 ns/op 0 B/op 0 allocs/op
Benchmark_IsIPv4/default-4 28357074 40.38 ns/op 0 B/op 0 allocs/op
Benchmark_IsIPv6/fiber-4 19461662 62.01 ns/op 0 B/op 0 allocs/op
Benchmark_IsIPv6/default-4 13315670 89.84 ns/op 0 B/op 0 allocs/op
# Parse
Benchmark_ParseUint/fiber-12 236748204 5.049 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint/fiber_bytes-12 224650773 5.348 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint/default-12 88588122 13.75 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint_DigitRuns/6digit-12 207540178 5.769 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint_DigitRuns/8digit-12 222360716 5.403 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint_DigitRuns/12digit-12 156132950 7.699 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint_DigitRuns/19digit-12 135049720 8.880 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint_DigitRuns/1digit-12 338642533 3.553 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint_DigitRuns/4digit-12 212370570 5.672 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt/fiber-12 299791800 3.981 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt/fiber_bytes-12 288714712 4.165 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt/default-12 76370292 15.48 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt32/fiber-12 200451391 5.988 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt32/fiber_bytes-12 201629558 5.956 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt32/default-12 78384832 15.71 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt16/fiber-12 220670613 5.462 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt16/fiber_bytes-12 220175068 5.430 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt16/default-12 100000000 10.71 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt8/fiber-12 277948545 4.279 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt8/fiber_bytes-12 264784368 4.566 ns/op 0 B/op 0 allocs/op
Benchmark_ParseInt8/default-12 142184748 8.373 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint32/fiber-12 238916116 5.025 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint32/fiber_bytes-12 222286592 5.409 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint32/default-12 90395479 13.33 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint16/fiber-12 251398184 4.828 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint16/fiber_bytes-12 248772012 4.838 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint16/default-12 137015901 8.788 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint8/fiber-12 360430984 3.427 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint8/fiber_bytes-12 327526336 3.659 ns/op 0 B/op 0 allocs/op
Benchmark_ParseUint8/default-12 181904056 6.438 ns/op 0 B/op 0 allocs/op
Benchmark_ParseFloat64/fiber-12 82912768 14.76 ns/op 0 B/op 0 allocs/op
Benchmark_ParseFloat64/fiber_bytes-12 95692504 12.68 ns/op 0 B/op 0 allocs/op
Benchmark_ParseFloat64/default-12 50109265 25.05 ns/op 0 B/op 0 allocs/op
Benchmark_ParseFloat32/fiber-12 76648135 15.76 ns/op 0 B/op 0 allocs/op
Benchmark_ParseFloat32/fiber_bytes-12 86422119 13.63 ns/op 0 B/op 0 allocs/op
Benchmark_ParseFloat32/default-12 47198646 25.41 ns/op 0 B/op 0 allocs/op
# Time
Benchmark_CalculateTimestamp/fiber-12 1000000000 0.3366 ns/op 0 B/op 0 allocs/op
Benchmark_CalculateTimestamp/default-12 36163686 32.69 ns/op 0 B/op 0 allocs/op
Benchmark_CalculateTimestamp/fiber_asserted-12 4471299 267.8 ns/op 12 B/op 2 allocs/op
Benchmark_CalculateTimestamp/default_asserted-12 3991147 298.7 ns/op 8 B/op 2 allocs/op
# URL
Benchmark_AppendPathSegmentsEscape/1-segment/fiber-12 84056664 13.99 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/1-segment/split-loop-12 56022625 21.97 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/3-segments/fiber-12 88724314 13.65 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/3-segments/split-loop-12 36393044 32.41 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/6-segments/fiber-12 87622688 13.82 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/6-segments/split-loop-12 23307777 51.23 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/escaping/fiber-12 37647206 31.85 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathSegmentsEscape/escaping/split-loop-12 21136993 58.06 ns/op 0 B/op 0 allocs/op
# XML
Benchmark_GolangXMLEncoder-12 574852 2040 ns/op 4864 B/op 12 allocs/op
Benchmark_DefaultXMLEncoder-12 593738 2012 ns/op 4864 B/op 12 allocs/op
Benchmark_DefaultXMLDecoder-12 309031 3876 ns/op 2892 B/op 57 allocs/op
See all the benchmarks under https://gofiber.github.io/utils/benchmarks
EqualFold, IndexFold, ContainsFold, HasPrefixFold, and
HasSuffixFold compare ASCII case-insensitively using the SWAR word
loops: only A..Z/a..z fold, every other byte (including bytes
= 0x80) must match exactly.
HasPrefixFoldandHasSuffixFoldcover the header checks Fiber otherwise spells as an allocation-proneToLower+HasPrefix/HasSuffixpair (authorization schemes such asBearer, content-type prefixes such asmultipart/form-data, suffixes such as+json), and like the other Fold helpers they take the needle as a plain string because call sites pass constant tokens. TheirBenchmark_HasPrefixFold/Benchmark_HasSuffixFoldnumbers are tracked on the benchmark charts and join the catalog above on its next regeneration.
IndexFold stays linear when the haystack is built against the needle:
for a needle of nine bytes or more, once the candidates that fail their
verification have cost more than a fixed share of the bytes scanned, a
Rabin-Karp search over the folded bytes finishes the job, as in
strings.Index. A 1 MiB haystack of a searched for AAAA...b (63
As) takes 1.7 ms where the candidate-by-candidate check took 21 ms;
benchstat over ten runs on an Intel Xeon @ 2.30GHz, and the ordinary rows
stay within 5% of what they were. Benchmark_IndexFold/adversarial-*
reproduces it.
HashFold is the hashing half of a case-insensitive lookup table whose
other half is EqualFold: strings EqualFold reports equal hash equal,
so a table of field or header names can be probed with a key in any case
without first lower-casing a copy of it. It folds each word with
swar.ToLowerWord as it loads it and mixes with wyhash's widening
multiply: keys under eight bytes, as most are, pack into one word and
cost one multiply, with the length in the multiplier so that keys which
pack alike, such as a and aa, stay apart; longer keys take one
multiply for each sixteen bytes before the last sixteen, and two more to
finish. It takes no seed and is no
defense against collisions planned in advance, so it suits keys of the
program's own, such as the fields of a struct, rather than keys an
attacker picks. Against maphash.String of a strings.ToLower copy,
benchstat over ten runs on an Intel Xeon @ 2.80GHz measured 4.8 ns
against 13.2 ns for a 2-byte key, 4.5 ns against 50.7 ns for a 4-byte
key and 14.7 ns against 184 ns for a 48-byte key, where the copy also
allocates;
go test -run='^$' -bench='^Benchmark_HashFold$' -benchmem -count=10 . > hashfold.txt
followed by benchstat hashfold.txt reproduces that comparison. The
HashFold rows in the amd64 table below, like the table's other rows,
are a single run on the machine its header names.
AppendHTTPDate and FormatHTTPDate write a time in the RFC 9110
preferred HTTP date format (Mon, 02 Jan 2006 15:04:05 GMT,
net/http.TimeFormat), byte-identical to time.Format with that layout
but without walking a layout string: the calendar fields come from one
civil-date conversion of t.Unix() (Hinnant's era arithmetic, instead of
the three abs() walks behind Date, Clock, and Weekday), and are
written into the fixed-width template with two-digit table lookups.
ParseHTTPDate is the reverse: canonical preferred-format input takes a
strict scalar fast path whose validated fields feed time.Unix directly
— the same Time value time.Date builds, minus its normalization pass —
and everything else — the obsolete RFC 850 and asctime forms, unusual
casing, non-GMT zone names, padding — falls back to time.Parse on the
text with the space, tab, CR, and LF around it trimmed (unlike
net/http.ParseTime, which does not trim), keeping its results and
its errors. Both directions are
pinned to the time package by a day-by-day sweep over the years
0..9999. Date, Last-Modified, and If-Modified-Since handling sit on
every request/response, which makes these the highest-leverage helpers in
this group for Fiber.
AppendQueryEscape/AppendPathEscape and
AppendQueryUnescape/AppendPathUnescape produce byte-identical results
(and, for the unescape pair, identical url.EscapeError values) to their
net/url counterparts, as append-style, allocation-free single passes.
The escape tables are pinned to net/url.shouldEscape by exhaustive
per-byte tests. Unescaping jumps between escape sites with the vectorized
scans (IndexAny2 when + needs rewriting, bytes.IndexByte otherwise)
and copies clean spans wholesale, so route parameters and query values
without escapes — the common case — cost one scan and one copy. Decoding
never grows the input, so dst may be s[:0] on a common backing array
to unescape in place; escaping can grow the input, so there dst must
not alias s.
AppendPathSegmentsEscape covers a whole multi-segment path in one pass:
it escapes every segment as AppendPathEscape does and keeps the /
between them. The output equals escaping each segment and joining with
/, pinned per byte and by fuzzing; net/url's whole-path escaping
differs, as it also leaves ; and , unescaped. The catalog above
measures it against the per-segment loop a caller writes without it; the
other URL benchmarks are still in the amd64 block below.
AppendJSONString appends a value as a double-quoted JSON string,
byte-identical to encoding/json.Marshal of the same string through Go
1.26 — including its default HTML escaping (<, >, &), the \ufffd
replacement of invalid UTF-8 bytes, and the U+2028/U+2029 escapes — without
any of Marshal's reflection or allocation. From Go 1.27, Marshal writes
a raw U+FFFD for an invalid byte where AppendJSONString keeps the
six-character \ufffd escape; both decode to the same string, and every
other input stays byte-identical. Clean spans are located with a SWAR
scan (the same first-match-mask technique as IndexNonQuotable) and
copied wholesale. This is the building block for hand-rolled JSON hot
paths such as access-log lines and error bodies.
ParseIPv4 and ParseIPv6 parse addresses into netip.Addr, accepting
exactly the strings netip.ParseAddr accepts for the respective family
(pinned by fuzzing) while reporting failure with a bool instead of a
constructed error. Both take strings or byte slices, so fasthttp-style
callers skip the string conversion entirely; remote-address and
trusted-proxy checks parse an IP on every request in Fiber.
CanonicalHeaderKey Title-Cases an HTTP header key exactly like
net/http.CanonicalHeaderKey, including its return-unchanged guard for
keys containing non-token bytes. Already-canonical keys — the common case
on receive paths — are validated in a single table pass and returned
as-is with zero allocations for strings and byte slices alike. Keys that
do need rewriting cost one allocation; note that for the ~40 header names
in the stdlib's interning table the stdlib returns a cached string
without allocating, so this helper's edge there is time, not allocations.
IndexControl returns the index of the first ASCII control byte — a byte
below 0x20 or DEL (0x7F), the RFC 5234 CTL set — and IndexControlExceptTab
is the same scan with HTAB permitted, which is the byte set an RFC 9110
field value may not contain. Both are SWAR first-match scans
(two words per branch, one overlapping word for the tail) over strings or
byte slices; the HTAB exemption is tested only in words that hold a
control byte, so clean input costs the same either way. They never match
bytes >= 0x80, so unlike
strings.IndexFunc(s, unicode.IsControl) they neither decode UTF-8 nor
flag the C1 range hidden inside it. Fiber spells this check by hand in
half a dozen places — header values before they are echoed, request IDs,
Location values, log fields, Basic auth credentials — and each copy is
one of these two calls.
CutByte and LastCutByte are strings.Cut/bytes.Cut for a single
byte separator, around its first or last occurrence, generic over strings
and byte slices. They return the two parts and a found flag exactly like
the stdlib pair (including the ""/nil after-part of a miss), cost one
IndexByte/LastIndexByte, and spare []byte callers the []byte{sep}
needle and the length dispatch inside bytes.Index. CutByte beats
strings.Cut; LastCutByte has no stdlib counterpart, so its row is
measured against a hand-written LastIndexByte split, which it trails by
the cost of the call — its value is the generic []byte support and the
readable spelling. Header parameter splits (;), key=value pairs, and
host/port and name/extension splits are the intended call sites.
Trim, TrimLeft and TrimRight remove one repeated byte from the ends of
a string or byte slice, generic over both. Unlike strings.Trim and
bytes.Trim, the cutset is a single byte, not a set of characters. The
result is a subslice of the input, never a copy, and it is nil only for a
nil input, where bytes.Trim and bytes.TrimLeft return nil whenever
nothing is left. TrimSpace trims ASCII whitespace only and leaves Unicode
spaces alone.
SplitHostPort splits host:port, host%zone:port, [host]:port, and
[host%zone]:port with exactly net.SplitHostPort's acceptance rules
(pinned by fuzzing against it), but reports failure with a bool instead
of constructing a *net.AddrError, and accepts byte slices. Valid input
costs the same as the stdlib — the scan is the same three IndexByte
calls — so the win is on the rejection path, where a malformed Host or
Forwarded value no longer costs an allocation, and on []byte input,
which no longer needs a string conversion first.
SplitTrimSeq returns an iterator over the elements of a list separated
by one byte, with ASCII whitespace trimmed from each element and empty
elements skipped — how HTTP list fields such as Accept-Encoding,
Connection, and Vary are read (RFC 9110 Section 5.6.1: optional
whitespace around the commas, empty elements ignored). Quoted strings are
not interpreted, so a field whose elements can hold a quoted comma, such as
Cache-Control: no-cache="Set-Cookie, Set-Cookie2", needs a reader that
honors the quotes. It replaces the strings.SplitSeq + TrimSpace + emptiness-check
triplet, locates each separator with a single IndexByte, works on
strings and byte slices alike, and yields subslices without copying. In
an ordinary caller the iterator inlines and allocates nothing, like
strings.SplitSeq; the benchmark ranges inside a helper function for
that reason, because calls made directly inside a b.Loop body are
never inlined and would show the closure allocations instead.
AppendDuration renders a time.Duration exactly as d.String() does —
"72h3m0.5s", "1.5ms", "0s" — into the caller's buffer, with the two-digit
table for the field digits; a value with no fraction, the common case,
never touches the fraction digits. d.String() allocates its result and
fmt.Fprintf("%v", d), which Fiber's logger uses for the latency column,
costs several times more on top; an append-style form makes per-request
duration rendering (access logs, Server-Timing) allocation-free.
FormatUint/FormatInt (and their 32- and 16-bit variants) and
AppendUint/AppendInt render integers eight digits at a time: a value
below 1e8 becomes eight zero-padded digit lanes through a fixed sequence
of multiplies, shifts, and masks (the SWAR inverse of the 8-digit parse
step in ParseInt), so a 64-bit value costs at most three such
conversions and two divisions, all independent of each other, instead of
one dependent divide-and-store per digit; the first significant digit is
found with a trailing-zero count. Values below 100 come from a
precomputed table, and the output is pinned to strconv by a dense sweep
plus every decimal and lane-group boundary. GetMIME in the same spirit
looks up extensions through a hash table keyed by the extension packed
into one lower-cased word with its length in the top lane, so a hit is a
multiply, a shift, and usually one slot comparison, with no allocation even
for upper-case input.
These helpers were added on an amd64 machine, so like the simd numbers
their benchmarks are recorded separately from the arm64 catalog above and
join it on its next regeneration. The block also carries the current
numbers for the paths reworked on the same machine (integer formatting,
GetMIME, token-sized EqualFold), whose arm64 rows above predate that
work:
Environment: goos: linux goarch: amd64 pkg: github.com/gofiber/utils/v2 cpu: Intel(R) Xeon(R) Processor @ 2.30GHz
// go test -benchmem -run=^$ -count=1 . -bench='^Benchmark_(FormatUint|FormatInt|FormatUint32|FormatInt32|FormatUint16|FormatInt16|AppendUint|AppendInt|EqualFold_Short|HashFold|GetMIME|AppendHTTPDate|ParseHTTPDate|AppendDuration|AppendQueryEscape|AppendQueryUnescape|AppendPathUnescape|AppendJSONString|ParseIPv4|ParseIPv6|CanonicalHeaderKey|IndexControl|CutByte|LastCutByte|SplitHostPort|SplitTrimSeq)$'
Benchmark_EqualFold_Short/3B/fiber-4 216868370 5.500 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/3B/default-4 222478070 5.360 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/4B/fiber-4 255431634 4.242 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/4B/default-4 207625507 5.947 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/5B/fiber-4 301627573 4.008 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/5B/default-4 185542844 6.492 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/7B/fiber-4 294018784 4.063 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/7B/default-4 169165963 7.064 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/8B/fiber-4 305509803 3.944 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/8B/default-4 163848274 7.297 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/10B/fiber-4 194301206 6.020 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/10B/default-4 100000000 11.08 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/16B/fiber-4 202457916 6.392 ns/op 0 B/op 0 allocs/op
Benchmark_EqualFold_Short/16B/default-4 78731106 16.17 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/2B/fiber-4 386759509 3.113 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/2B/default-4 100000000 11.14 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/4B/fiber-4 452701778 2.709 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/4B/default-4 32497344 36.43 ns/op 8 B/op 1 allocs/op
Benchmark_HashFold/12B/fiber-4 288294152 4.276 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/12B/default-4 17637711 63.01 ns/op 16 B/op 1 allocs/op
Benchmark_HashFold/17B/fiber-4 157860645 7.479 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/17B/default-4 15468496 76.52 ns/op 24 B/op 1 allocs/op
Benchmark_HashFold/48B/fiber-4 129690970 9.739 ns/op 0 B/op 0 allocs/op
Benchmark_HashFold/48B/default-4 8301454 151.4 ns/op 48 B/op 1 allocs/op
Benchmark_IndexControl/clean-16B/fiber-4 233868030 5.108 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/clean-16B/fiber-except-tab-4 247935051 4.862 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/clean-16B/default-4 60814891 23.33 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/clean-64B/fiber-4 120078477 9.974 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/clean-64B/fiber-except-tab-4 100000000 10.44 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/clean-64B/default-4 14763626 72.90 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/ctl-at-end-64B/fiber-4 100000000 10.71 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/ctl-at-end-64B/fiber-except-tab-4 100000000 10.11 ns/op 0 B/op 0 allocs/op
Benchmark_IndexControl/ctl-at-end-64B/default-4 17073346 75.71 ns/op 0 B/op 0 allocs/op
Benchmark_CutByte/fiber-4 241813096 4.896 ns/op 0 B/op 0 allocs/op
Benchmark_CutByte/default-4 191558419 6.445 ns/op 0 B/op 0 allocs/op
Benchmark_CutByte/fiber-bytes-4 209851152 5.749 ns/op 0 B/op 0 allocs/op
Benchmark_CutByte/default-bytes-4 140389010 8.545 ns/op 0 B/op 0 allocs/op
Benchmark_LastCutByte/fiber-4 184531656 6.154 ns/op 0 B/op 0 allocs/op
Benchmark_LastCutByte/default-4 188323168 6.277 ns/op 0 B/op 0 allocs/op
Benchmark_AppendDuration/micros/fiber-4 117165966 10.24 ns/op 0 B/op 0 allocs/op
Benchmark_AppendDuration/micros/default-4 39916680 29.52 ns/op 8 B/op 1 allocs/op
Benchmark_AppendDuration/micros/fmt-4 9768556 123.6 ns/op 16 B/op 2 allocs/op
Benchmark_AppendDuration/millis-frac/fiber-4 70899018 15.35 ns/op 0 B/op 0 allocs/op
Benchmark_AppendDuration/millis-frac/default-4 34036976 37.19 ns/op 16 B/op 1 allocs/op
Benchmark_AppendDuration/millis-frac/fmt-4 9782224 120.7 ns/op 24 B/op 2 allocs/op
Benchmark_AppendDuration/hours/fiber-4 70045983 17.53 ns/op 0 B/op 0 allocs/op
Benchmark_AppendDuration/hours/default-4 29855035 39.46 ns/op 8 B/op 1 allocs/op
Benchmark_AppendDuration/hours/fmt-4 9310930 123.6 ns/op 16 B/op 2 allocs/op
Benchmark_FormatUint/small/fiber-4 809249647 1.493 ns/op 0 B/op 0 allocs/op
Benchmark_FormatUint/small/strconv-4 631096440 1.913 ns/op 0 B/op 0 allocs/op
Benchmark_FormatUint/medium/fiber-4 52606162 23.11 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint/medium/strconv-4 43411108 27.40 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint/large/fiber-4 45187041 26.35 ns/op 24 B/op 1 allocs/op
Benchmark_FormatUint/large/strconv-4 35693152 36.13 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/small_pos/fiber-4 664823427 1.783 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt/small_pos/strconv-4 602705583 2.136 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt/small_neg/fiber-4 558763431 2.130 ns/op 0 B/op 0 allocs/op
Benchmark_FormatInt/small_neg/strconv-4 68208922 15.60 ns/op 3 B/op 1 allocs/op
Benchmark_FormatInt/medium_pos/fiber-4 53351432 25.45 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/medium_pos/strconv-4 47228922 25.14 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/medium_neg/fiber-4 51981028 22.17 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/medium_neg/strconv-4 50206854 26.90 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt/large_pos/fiber-4 45979017 27.01 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/large_pos/strconv-4 33060873 36.28 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/large_neg/fiber-4 41153070 28.79 ns/op 24 B/op 1 allocs/op
Benchmark_FormatInt/large_neg/strconv-4 33418716 37.57 ns/op 24 B/op 1 allocs/op
Benchmark_FormatUint32/fiber-4 48333518 22.85 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint32/strconv-4 47875622 28.11 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt32/fiber-4 50800854 23.39 ns/op 16 B/op 1 allocs/op
Benchmark_FormatInt32/strconv-4 43311554 25.94 ns/op 16 B/op 1 allocs/op
Benchmark_FormatUint16/fiber-4 80362605 15.08 ns/op 5 B/op 1 allocs/op
Benchmark_FormatUint16/strconv-4 65920797 18.87 ns/op 5 B/op 1 allocs/op
Benchmark_FormatInt16/fiber-4 71365039 16.19 ns/op 8 B/op 1 allocs/op
Benchmark_FormatInt16/strconv-4 55481508 20.96 ns/op 8 B/op 1 allocs/op
Benchmark_AppendUint/fiber-4 100000000 10.06 ns/op 0 B/op 0 allocs/op
Benchmark_AppendUint/strconv-4 96812635 12.45 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/small_neg/fiber-4 344595301 3.596 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/small_neg/strconv-4 243755337 4.947 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/medium_neg/fiber-4 120066458 10.42 ns/op 0 B/op 0 allocs/op
Benchmark_AppendInt/medium_neg/strconv-4 89474301 13.46 ns/op 0 B/op 0 allocs/op
Benchmark_CanonicalHeaderKey/canonical/fiber-4 52550029 23.00 ns/op 0 B/op 0 allocs/op
Benchmark_CanonicalHeaderKey/canonical/default-4 61007802 20.69 ns/op 0 B/op 0 allocs/op
Benchmark_CanonicalHeaderKey/common-lower/fiber-4 22874547 45.97 ns/op 16 B/op 1 allocs/op
Benchmark_CanonicalHeaderKey/common-lower/default-4 27336062 47.89 ns/op 0 B/op 0 allocs/op
Benchmark_CanonicalHeaderKey/custom-lower/fiber-4 18788817 61.82 ns/op 24 B/op 1 allocs/op
Benchmark_CanonicalHeaderKey/custom-lower/default-4 16635841 71.56 ns/op 24 B/op 1 allocs/op
Benchmark_SplitHostPort/host-port/fiber-4 74919554 15.41 ns/op 0 B/op 0 allocs/op
Benchmark_SplitHostPort/host-port/default-4 79832212 16.21 ns/op 0 B/op 0 allocs/op
Benchmark_SplitHostPort/ipv6-port/fiber-4 70975998 16.92 ns/op 0 B/op 0 allocs/op
Benchmark_SplitHostPort/ipv6-port/default-4 70707730 18.08 ns/op 0 B/op 0 allocs/op
Benchmark_SplitHostPort/missing-port/fiber-4 100000000 10.68 ns/op 0 B/op 0 allocs/op
Benchmark_SplitHostPort/missing-port/default-4 36117877 33.52 ns/op 32 B/op 1 allocs/op
Benchmark_GetMIME/fiber-4 25991878 39.16 ns/op 0 B/op 0 allocs/op
Benchmark_GetMIME/default-4 13129416 92.00 ns/op 0 B/op 0 allocs/op
Benchmark_AppendHTTPDate/fiber-4 62205424 19.19 ns/op 0 B/op 0 allocs/op
Benchmark_AppendHTTPDate/default-4 8700108 139.6 ns/op 0 B/op 0 allocs/op
Benchmark_ParseHTTPDate/fiber-4 77635720 15.06 ns/op 0 B/op 0 allocs/op
Benchmark_ParseHTTPDate/default-4 6252627 188.7 ns/op 0 B/op 0 allocs/op
Benchmark_ParseIPv4/fiber-4 59979507 19.79 ns/op 0 B/op 0 allocs/op
Benchmark_ParseIPv4/default-4 41341878 29.34 ns/op 0 B/op 0 allocs/op
Benchmark_ParseIPv6/compressed/fiber-4 31259818 38.24 ns/op 0 B/op 0 allocs/op
Benchmark_ParseIPv6/compressed/default-4 21305965 60.06 ns/op 0 B/op 0 allocs/op
Benchmark_ParseIPv6/full/fiber-4 23526598 51.03 ns/op 0 B/op 0 allocs/op
Benchmark_ParseIPv6/full/default-4 15007318 76.87 ns/op 0 B/op 0 allocs/op
Benchmark_AppendJSONString/clean-16B/fiber-4 69241483 18.13 ns/op 0 B/op 0 allocs/op
Benchmark_AppendJSONString/clean-16B/default-4 10105363 125.2 ns/op 40 B/op 2 allocs/op
Benchmark_AppendJSONString/clean-64B/fiber-4 26140521 45.77 ns/op 0 B/op 0 allocs/op
Benchmark_AppendJSONString/clean-64B/default-4 6544102 183.4 ns/op 96 B/op 2 allocs/op
Benchmark_AppendJSONString/escaped-64B/fiber-4 9290080 127.1 ns/op 0 B/op 0 allocs/op
Benchmark_AppendJSONString/escaped-64B/default-4 4916450 249.5 ns/op 96 B/op 2 allocs/op
Benchmark_AppendJSONString/unicode-64B/fiber-4 5309510 195.2 ns/op 0 B/op 0 allocs/op
Benchmark_AppendJSONString/unicode-64B/default-4 4040023 286.7 ns/op 112 B/op 2 allocs/op
Benchmark_SplitTrimSeq/accept-encoding/fiber-4 39450651 26.90 ns/op 0 B/op 0 allocs/op
Benchmark_SplitTrimSeq/accept-encoding/default-4 47985436 26.49 ns/op 0 B/op 0 allocs/op
Benchmark_SplitTrimSeq/accept/fiber-4 22084174 48.02 ns/op 0 B/op 0 allocs/op
Benchmark_SplitTrimSeq/accept/default-4 23740135 54.57 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryEscape/clean-64B/fiber-4 30767948 37.34 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryEscape/clean-64B/default-4 45588386 26.02 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryEscape/mixed-64B/fiber-4 7100626 169.1 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryEscape/mixed-64B/default-4 5149764 228.8 ns/op 192 B/op 2 allocs/op
Benchmark_AppendQueryUnescape/plain-64B/fiber-4 89399498 13.53 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryUnescape/plain-64B/default-4 13136210 89.13 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryUnescape/escaped-64B/fiber-4 8347543 153.3 ns/op 0 B/op 0 allocs/op
Benchmark_AppendQueryUnescape/escaped-64B/default-4 5888370 192.6 ns/op 48 B/op 1 allocs/op
Benchmark_AppendPathUnescape/plain-25B/fiber-4 136702790 8.784 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathUnescape/plain-25B/default-4 34562199 34.80 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathUnescape/escaped-31B/fiber-4 30512154 40.93 ns/op 0 B/op 0 allocs/op
Benchmark_AppendPathUnescape/escaped-31B/default-4 10994758 109.6 ns/op 24 B/op 1 allocs/op
ParseFloat64 and ParseFloat32 return the float strconv.ParseFloat
returns, bit for bit, for an optional sign, digits with an optional point and
an optional exponent, in strings or byte slices, wherever strconv reads the
number right: with more than 800 digits ahead of the point it keeps 800 and
places the point by that many ("2" and 800 zeros with E-800 gives 0.2), and
these functions return the correctly rounded float instead. The spellings strconv adds
(inf, nan, hexadecimal floats, underscores) are syntax errors, and a value
too large for the type is a range error; every error comes with a zero
result, where strconv returns ±Inf for a range error. A mantissa up to 2^53
(2^24 for ParseFloat32) with an exponent of at most 22 (10) either way is
one multiplication or division by an exact power of ten, which rounds
correctly (Clinger's fast path, strconv's own first step). An exponent past
which every 64-bit mantissa is zero or infinity is settled at once, and so is
a product that is an integer times a power of two (the halfway points between
floats, integers past 2^53, decimals padded with zeros), with integer
arithmetic. Everything else goes to strconv.ParseFloat: the text itself up
to 700 bytes, and past that an exact mantissa and exponent or, for a number
with more digits than a uint64 holds, at most 768 digits, a final 1 for any
nonzero digit after them and an exponent, a form strconv reads correctly
however long the input was. Benchmark_ParseFloat_Shapes times each shape
against strconv: 2 to 3 times as fast on the fast path, and 1.3 to 1.7 times
slower on the numbers handed over to it, whose digits are read twice.
UnsafeString and UnsafeBytes convert between a string and a byte slice
without copying, so the two share memory and neither side may be modified
while the other is in use. A write through UnsafeBytes faults for a string
literal and changes any other string for every holder of it, a map key, a
header or a cache entry among them; a write to the bytes behind an
UnsafeString changes the string under whoever holds it. CopyBytes and
CopyString give a copy for the side that outlives or modifies the other.
Walk is filepath.Walk over an http.FileSystem, with the same control
flow (filepath.SkipDir and filepath.SkipAll are returned as they are).
It follows symbolic links, as http.Dir does when it opens a file, and the
FileInfo it passes comes from that open file, so it never reports a link:
a link to an ancestor repeats the tree until ELOOP, and a link that leaves
the tree walks what it points to. A program that serves or indexes what
Walk finds has to keep the paths inside the root itself, for example by
resolving each one with filepath.EvalSymlinks under the real directory;
http.FileSystem has no Lstat to do it here.
ConvertToBytes turns 42, 42kb, 1.5GiB or 130.51MB into a byte
count: decimal units are powers of 1000, units with an i right after the
letter (Ki, KiB, kibibytes) are powers of 1024, but not the i of
kilobytes or gigabytes, and the result saturates at math.MaxInt. The
units run from k to P, and to E when a b or i follows it (1.5EB,
1EiB), since a bare E is an exponent marker. The
number may have a +, a point and an exponent (+2.01k, 1.5e3K), with
any number of digits, and is scaled with 128-bit integer arithmetic, so the
result is the exact product rounded down (65.35KB is 65350) and never passes through a
float64. A number with more digits than a uint64 holds is scaled from its
first digits when they and the same digits plus one agree, and otherwise
(0.000000000931322574615478515625Gi is exactly one byte) from all of them.
A negative or malformed size is 0, and an unknown unit counts as bytes. A
whole number, with or without a unit, is one digit loop and a multiplication.
Benchmark_ConvertToBytes_Shapes times each shape.
ParseByteSize is the strict form for configuration values, where a guess is
a bug: it takes the number, any blanks, and at most one unit of b, k to
p (with an i for powers of 1024 and a trailing b) and EB or Ei, in
either case, and returns a *strconv.NumError for anything else, such as
10 X, 5kilobytes, a negative size, or a size of math.MaxInt or more.
The number is scaled by ConvertToBytes, so the two agree on every size
ParseByteSize accepts.
The swar package exports the SWAR (SIMD within a register)
building blocks the helpers above are composed from: Load8/Store8,
Broadcast, ZeroLanes, MatchByteMask/MatchRangeMask,
ToLowerWord/ToUpperWord, FirstLane/LastLane, and the WordLen,
Ones, HighBits, and LowSeven constants. They are exported so
downstream packages (Fiber itself, middleware) can fuse their own byte
scans — for example, finding a delimiter while classifying the bytes
before it — without re-deriving the bit tricks. The contracts (Load8 and
Store8 panic outside len, ZeroLanes' approximate mask, the
little-endian lane order) and runnable examples live in the package
documentation.
Load8 and Store8 check the offset against len, also for a []byte
with spare capacity, where a plain reslice checks cap and a miscounted
offset would read or write past len without a panic. The check costs a
compare only where the compiler cannot prove the offset and nothing inside
a pinned group (below); the callers' benchmarks show no net change
(geomean -0.3% over 49 rows, benchstat -count=10).
The package benchmarks its primitives against their stdlib counterparts
the same way the helpers above do, measuring the canonical loops composed
from them: Load8/Store8 vs encoding/binary's little-endian
Uint64/PutUint64, a ZeroLanes first-match scan vs
strings.IndexByte, a MatchByteMask+LastLane reverse scan vs
bytes.LastIndexByte, a MatchRangeMask digit scan vs
strings.IndexAny, and an in-place ToLowerWord loop vs
bytes.ToLower. The composed loops are pinned to the stdlib results by a
dedicated test, and the numbers are tracked per commit on the
benchmark charts. Note
that strings.IndexByte is hand-written SIMD assembly and overtakes the
portable SWAR scan on large inputs; the SWAR primitives earn their keep
on short HTTP-sized inputs and on fused scans the stdlib has no single
function for. The package's remaining benchmark, Benchmark_Load8_Fusion,
is an advisory codegen guard rather than an API performance promise, so
it is deliberately not part of the catalog above.
The simd package is the vector-width counterpart to swar: byte
searching and validation whose scan kernels dispatch to AVX2 assembly (four
32-byte vectors per iteration) on amd64 CPUs for inputs of simd.MinLen
(32) bytes or more (MemchrPair: 32 bytes past its offset), and fall back
to portable loops built on the swar primitives everywhere else, so it
builds and behaves identically on every platform.
simd.Accelerated() reports which mode is active. CPU capability detection
uses golang.org/x/sys/cpu,
which also verifies OS support for saving the vector register state.
The AVX2-backed kernels are the multi-needle scans (Memchr2, Memchr3),
the paired-byte scan (MemchrPair), the class scans
(MemchrDigit/MemchrDigitAt, MemchrWord/MemchrNotWord), the ASCII
scans (IsASCII, FirstNonASCII, CountNonASCII), and the substring
search (Memmem), which
prefilters on the needle's rarest bytes (SelectRareBytes, ByteRank)
before verifying candidates — 2-6 byte needles containing two distinct
values are scanned for their two rarest bytes at the exact relative
distance, longer or single-valued needles for the single rarest byte.
Each kernel classifies four 32-byte vectors per iteration. Where the
result is a position or a yes/no, the four masks are combined, so a
128-byte block costs a single VPMOVMSKB and a single branch, and the
scans that report a position re-extract the four masks in address order on
the (rare) hit path. CountNonASCII is the exception — a count cannot be
recovered from a combined mask, so its block loop accumulates per-lane
counts in vector byte lanes (a signed compare against zero and a byte
subtract per vector) and reduces them once at the end, while the
remaining whole vectors are extracted and population-counted; it is the
one kernel gated on POPCNT in addition to AVX2.
One tier is documented explicitly as unaccelerated:
MemchrInTable/MemchrNotInTable are plain
scalar loops, since an arbitrary 256-entry membership test has no cheap
vector form. There is deliberately no single-needle Memchr:
bytes.IndexByte is already vector-accelerated by the Go runtime. Memmem
delegates to bytes.Index for haystacks of up to 64 bytes, where the
stdlib's brute-force vector kernel is level with the paired prefilter
(Benchmark_Memmem_Prefilter forces the prefilter helpers at every size
to keep that measurable); from 65 bytes bytes.Index switches to a loop
anchored on the needle's first byte, and the paired scan takes over.
Needles that take the single rare-byte scan keep a 128-byte routing point,
since that scan is less selective. Both prefilters bail to bytes.Index
after a bounded number of failed candidate verifications, so even
adversarial inputs — a rare byte everywhere plus a long almost-matching
needle — stay within a constant of the stdlib's O(n+m) (see
Benchmark_Memmem_Adversarial). The
package operates on []byte only; the generic top-level helpers IsASCII,
IndexAny2, and IndexAny3 dispatch into it automatically for inputs of
simd.MinLen+ bytes on amd64, which is where the AVX2 kernels overtake the
SWAR word loops (-35% to -88% ns/op at 32-512B in benchstat -count=10
runs; shorter inputs keep the existing SWAR paths).
The kernels are adapted from the coregex
project's simd package (MIT License, Copyright (c) 2025 Andrey Kolkov and
contributors; see simd/LICENSE), with the legacy-SSE
register moves in the kernels replaced by VEX-encoded ones to avoid AVX-SSE
transition stalls, the scalar tail loops replaced by overlapping vector
rescans at the buffer end (a 63-byte scan previously cost ~3.7x a 64-byte
one), the 32-byte main loops replaced by 4x unrolled 128-byte blocks whose
bound is tested once at the bottom against a precomputed limit pointer, the
\w classifier rewritten from three VPMINUB/VPMAXUB clamp-and-compare
range tests into two VPSHUFB nibble-table lookups (with the block test
reduced to one compare over the four raw class values), the digit range
test reduced from two signed compares and a VPANDN to one biased
VPADDB and one compare, FirstNonASCII and CountNonASCII given
kernels of their own (they were SWAR-only, and the count kernel's block
loop accumulates in vector byte lanes rather than extracting and
population-counting every vector's mask), the 128-byte block loops
placed at fixed offsets inside a 32-byte code window so their throughput
no longer depends on where the linker places each kernel, and the
fallbacks reworked around the stdlib and the swar package as described
above.
Against the pre-unrolling kernels, benchstat -count=10 on the machine
below reports -26.6%/-49.7% ns/op for Memchr2 at 512B/4096B,
-17.6%/-34.3% for Memchr3, -13.4%/-24.6% for MemchrPair,
-39.2%/-50.5% for MemchrDigit, -53.5%/-63.7% for MemchrNotWord,
-42.2%/-65.7% for IsASCII, and -13.7%/-27.1% for Memmem, which rides
the paired scan. Those percentages come from benchstat over ten runs of
each side; the single-run table below is a catalog, not a base-vs-head
comparison, so subtracting its rows from an older copy of it will not
reproduce them.
Two bands see no benefit and are worth stating plainly. Inputs below
simd.MinLen never reach the kernels at all. Inputs of 32-127 bytes do
reach them but skip the 128-byte block loop, so they pay its setup with
nothing to amortize it against: across that band benchstat reports the
class scans clearly ahead (MemchrNotWord -8.6% at 32B, -18.4% at 64B;
IsASCII -5.0%/-4.3%), most rows statistically unchanged, and two small
regressions — MemchrDigit +5.6% at 32B and Memchr3 +3.8% at 64B. Read
those small-input figures against the run's own noise floor: the default
legs call unchanged stdlib code, so their movement bounds what a delta of
that size means. They held within 1% in the run quoted here, but a later
run on the same machine drifted up to 17% on those same rows, so anything
under ~10% at 32-64B should be taken as "no measured change" unless its
control legs are quiet.
On the portable side, pinning each unrolled group of words with a reslice
before loading at constant offsets inside it removes the per-load bounds
checks that swar.Load8 otherwise repeats. Measured with
benchstat -count=10 against the same fallbacks, at 32B/512B/4KiB:
IsASCII -28%/-60%/-63%, CountNonASCII -24%/-44%/-44%,
FirstNonASCII -23%/-37%/-43%, Memchr2 -19%/-23%/-25%,
MemchrDigit -7%/-12%/-17%, Memchr3 -8%/-13%/-18%,
MemchrWord -11%/-8%/-11%, MemchrNotWord -5%/-7%/-6%. The tier a group
adds costs one compare on inputs too short to use it, which shows up as
+3% to +10% on some of the 8B fallback rows — a few tenths of a
nanosecond, and only below the length where the group pays for itself.
utils.IsASCII carries the same rework, so the two copies of that scan
stay in step.
Making the counting kernel finish its own sub-vector remainder (rather
than splitting the input in Go and calling the SWAR loop for the tail)
also removed a second non-inlinable call from every whole-vector input:
CountNonASCII at 32B went from 11.3ns — behind its own fallback — to
6.8ns, level with it, and it leads from 64B up.
A later audit pass reworked the kernels and fallbacks once more;
benchstat -count=10 on the machine below, base vs. head, reports:
MemchrDigit-20% at 512B and -27% at 4KiB from the one-add, one-compare range test.MemchrWord-13%/-11% andMemchrNotWord-4%/-10% at 512B/4KiB from comparing the reduced block once instead of every vector, and their SWAR fallbacks -36%/-41% at 32B, -40%/-43% at 64B and -43%/-45% at 512B: 15 ALU operations per word instead of 26, from case-folding the two letter ranges into one test, a one-add underscore test, and a single shared ASCII gate.CountNonASCII-15% at 512B and -41% at 4KiB, with 32B and 64B unchanged: the block loop counts in vector byte lanes (a signed compare against zero and a byte subtract per vector, flushed throughVPSADBWevery 127 blocks) instead of four port-0VPMOVMSKBextractions per block. The remaining whole vectors are still extracted and population-counted, because the vector reduction is a fixed ten-cycle chain that one to three vectors cannot amortize — a first version that used the accumulators for those too was 20% slower at 32-64B.MemchrPair's SWAR fallback -33% at 32B, -41% at 64B, -51% at 512B and -52% at 4KiB, andMemchrPairitself -30% at 32B, where the dispatch routes to that fallback: it now scans two words per branch through pinned three-index windows (no per-load capacity check or pointer clamp) and finishes with one overlapping word instead of a scalar tail. Before, at 32B, it ran no faster than a plain scalar loop.Memmem-62% at 96B: needles that take the paired prefilter are routed through it from 65-byte haystacks, wherebytes.Indexleaves its brute-force vector kernel for a first-byte-anchored loop; 64B and 128B+ are unchanged.
The same pinned-window rework applied to the case-conversion loops in
internal/caseconv, which the strings and bytes packages' ToLower
and ToUpper build on, gives on the same machine -27% to -37% ns/op for
the in-place UnsafeToLower/UnsafeToUpper at 39-64B, -14% to -19% for
the scan-only path that finds nothing to convert, and -5% to -17% for the
allocating conversions, where the allocation dominates. The arm64 catalog
rows above were not regenerated for that change.
Comparing the base and head test binaries also showed the untouched
MemchrPair kernel ~10% slower at 4KiB, purely because the linker had
moved its entry by 32 bytes: on Skylake-derived cores the JCC erratum
mitigation keeps a macro-fused compare-and-branch that crosses or ends on
a 32-byte boundary out of the decoded-uop cache, so the block loop ran
from the legacy decoder. Every block loop is now placed by a BLOCKALIGN
macro at a window offset where all of its fused pairs fit (a few
once-per-call NOPs, visible as +5% on Memchr2 at 512B and nothing at
4KiB), and an amd64 test reads each kernel's code and fails if a later
edit lets a pair straddle a boundary again.
Because the AVX2 kernels only engage on amd64, their benchmark numbers are recorded separately from the arm64 catalog above:
Environment: goos: linux goarch: amd64 pkg: github.com/gofiber/utils/v2/simd cpu: Intel(R) Xeon(R) Processor @ 2.30GHz
// go test ./simd/ -benchmem -run=^$ -bench=Benchmark_ -count=1
Benchmark_Memchr2/8B/simd-4 163223838 7.381 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/8B/scalar-4 220403118 5.688 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/8B/default-4 39779214 30.72 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/32B/simd-4 312666808 3.811 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/32B/scalar-4 151634965 7.857 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/32B/default-4 47302210 25.67 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/64B/simd-4 278823658 4.181 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/64B/scalar-4 97600944 13.38 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/64B/default-4 24859352 49.64 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/512B/simd-4 122049177 9.618 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/512B/scalar-4 15152460 77.68 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/512B/default-4 3514894 336.5 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/4096B/simd-4 19844942 57.94 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/4096B/scalar-4 2246491 570.3 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr2/4096B/default-4 440556 2689 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/8B/simd-4 225839479 5.398 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/8B/scalar-4 296908472 4.109 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/8B/default-4 37117809 32.63 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/32B/simd-4 255110941 4.701 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/32B/scalar-4 152303353 8.011 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/32B/default-4 44015703 27.72 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/64B/simd-4 208958654 5.442 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/64B/scalar-4 89396228 13.64 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/64B/default-4 26038789 46.63 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/512B/simd-4 98192415 12.39 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/512B/scalar-4 13208515 95.60 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/512B/default-4 3543529 342.1 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/4096B/simd-4 13478524 90.54 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/4096B/scalar-4 1572429 752.6 ns/op 0 B/op 0 allocs/op
Benchmark_Memchr3/4096B/default-4 493482 2618 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/8B/simd-4 137647610 8.631 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/8B/swar-4 180895180 6.368 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/8B/scalar-4 202734766 5.657 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/32B/simd-4 128088404 9.209 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/32B/swar-4 163652424 7.388 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/32B/scalar-4 73024104 16.53 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/64B/simd-4 214676979 5.591 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/64B/swar-4 97148960 11.90 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/64B/scalar-4 38951116 31.57 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/512B/simd-4 92245372 12.86 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/512B/swar-4 15626982 78.90 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/512B/scalar-4 4699668 263.4 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/4096B/simd-4 16299256 79.29 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/4096B/swar-4 1978568 612.1 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrPair/4096B/scalar-4 581733 1987 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/8B/simd-4 138359964 8.750 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/8B/scalar-4 194877894 6.085 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/32B/simd-4 320304793 3.650 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/32B/scalar-4 157400190 7.614 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/64B/simd-4 284828822 4.258 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/64B/scalar-4 100000000 10.43 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/512B/simd-4 149082781 8.406 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/512B/scalar-4 19803118 60.07 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/4096B/simd-4 24030127 49.81 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrDigit/4096B/scalar-4 2512970 474.9 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/8B/simd-4 178299544 6.750 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/8B/scalar-4 263884887 4.594 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/32B/simd-4 285046492 4.432 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/32B/scalar-4 135822624 8.478 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/64B/simd-4 236263441 5.255 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/64B/scalar-4 77558670 15.16 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/512B/simd-4 90156414 13.34 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/512B/scalar-4 9321330 122.7 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/4096B/simd-4 13992052 88.91 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrWord/4096B/scalar-4 1409242 926.8 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/8B/simd-4 188111439 6.459 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/8B/scalar-4 268971849 4.500 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/32B/simd-4 267004086 4.671 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/32B/scalar-4 131273421 9.029 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/64B/simd-4 235827067 5.110 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/64B/scalar-4 71256892 18.29 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/512B/simd-4 94014446 12.42 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/512B/scalar-4 9779750 122.9 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/4096B/simd-4 14442020 83.85 ns/op 0 B/op 0 allocs/op
Benchmark_MemchrNotWord/4096B/scalar-4 1263746 927.1 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/8B/simd-4 100000000 10.48 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/8B/default-4 128781562 9.208 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/32B/simd-4 100000000 10.50 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/32B/default-4 136736558 8.674 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/64B/simd-4 86872292 13.07 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/64B/default-4 100000000 11.55 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/96B/simd-4 67794943 19.16 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/96B/default-4 35085406 34.83 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/128B/simd-4 58757683 20.73 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/128B/default-4 23391030 46.43 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/192B/simd-4 64681166 18.59 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/192B/default-4 17413057 71.13 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/512B/simd-4 54063534 23.96 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/512B/default-4 5196966 231.7 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/4096B/simd-4 14285628 84.46 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem/4096B/default-4 741338 1644 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/8B/paired-4 100000000 11.10 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/8B/paired-stdlib-4 136195389 8.848 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/32B/paired-4 91527246 12.65 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/32B/paired-stdlib-4 136155064 8.780 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/32B/single-4 96447368 12.12 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/32B/single-stdlib-4 93651979 13.24 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/64B/paired-4 132946413 9.212 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/64B/paired-stdlib-4 101844316 11.62 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/64B/single-4 50785782 24.43 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/64B/single-stdlib-4 45737925 25.35 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/96B/paired-4 120954412 9.836 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/96B/paired-stdlib-4 37225718 33.61 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/96B/single-4 36624890 31.47 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/96B/single-stdlib-4 51132355 22.72 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/128B/paired-4 100000000 11.57 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/128B/paired-stdlib-4 26690694 47.88 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/128B/single-4 26789299 43.89 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/128B/single-stdlib-4 36123922 33.18 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/192B/paired-4 100000000 10.20 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/192B/paired-stdlib-4 16660519 72.98 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/192B/single-4 14980336 81.66 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/192B/single-stdlib-4 20875334 58.10 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/512B/paired-4 78980623 15.98 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/512B/paired-stdlib-4 5053633 244.9 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/512B/single-4 5332924 225.7 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/512B/single-stdlib-4 5536302 221.6 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/4096B/paired-4 15045468 80.58 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/4096B/paired-stdlib-4 766984 1597 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/4096B/single-4 701262 1714 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Prefilter/4096B/single-stdlib-4 722846 1658 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Adversarial/simd-4 706 1684375 ns/op 0 B/op 0 allocs/op
Benchmark_Memmem_Adversarial/default-4 714 1662946 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/8B/simd-4 339066433 3.302 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/8B/swar-4 741428154 1.612 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/32B/simd-4 346464981 3.513 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/32B/swar-4 283798622 4.261 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/64B/simd-4 244679335 4.910 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/64B/swar-4 227000787 5.128 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/512B/simd-4 214921719 5.639 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/512B/swar-4 83113578 14.01 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/4096B/simd-4 44166258 26.51 ns/op 0 B/op 0 allocs/op
Benchmark_IsASCII/4096B/swar-4 14718542 89.15 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/8B/simd-4 183310850 6.571 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/8B/swar-4 246415456 4.626 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/32B/simd-4 277790518 4.413 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/32B/swar-4 215803005 5.794 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/64B/simd-4 258967251 4.800 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/64B/swar-4 169597692 7.344 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/512B/simd-4 145282233 7.758 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/512B/swar-4 49222238 24.28 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/4096B/simd-4 45028603 27.52 ns/op 0 B/op 0 allocs/op
Benchmark_FirstNonASCII/4096B/swar-4 6690974 182.0 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/8B/simd-4 216842838 5.552 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/8B/swar-4 293867199 3.981 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/32B/simd-4 360431781 3.646 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/32B/swar-4 226715292 5.325 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/64B/simd-4 290987624 4.109 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/64B/swar-4 153041892 7.837 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/512B/simd-4 159127372 7.441 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/512B/swar-4 28561411 35.05 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/4096B/simd-4 31115862 38.66 ns/op 0 B/op 0 allocs/op
Benchmark_CountNonASCII/4096B/swar-4 4006736 257.9 ns/op 0 B/op 0 allocs/op
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