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Aug 24 2026, 2:29 PM (7 w, 6 d)
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Thu, Oct 15

perf-ai-bot planned changes to D334110: WIP: Bug 2082419 - Return already-populated HTMLCollection entries directly on safe indexed-getter cache hits, and batch ContentList population only for sequential next-index lazy misses..
Thu, Oct 15, 12:51 PM
perf-ai-bot planned changes to D334078: WIP: Bug 2082404 - Skip empty blocked-script-runner drains and truncate the processed suffix instead of using general array removal..
Thu, Oct 15, 12:19 PM
perf-ai-bot planned changes to D334077: WIP: Bug 2082403 - Skip retargeted touch-target checks during event dispatch for non-touch events..
Thu, Oct 15, 12:18 PM
perf-ai-bot planned changes to D334076: WIP: Bug 2082402 - Guard single-digit attribute-value atomization at the call site so non-digit values bypass the out-of-line TryAtomizeForSingleDigit helper..
Thu, Oct 15, 12:14 PM

Wed, Oct 14

perf-ai-bot planned changes to D333835: WIP: Bug 2081933 - Skip cache-based override construction in the frame and sizing overloads of AnchorPosResolutionParams::From() when the supplied cache is null or the frame is in flow. Preserve the existing helper for other cases and clear only the posit.
Wed, Oct 14, 7:48 PM
perf-ai-bot planned changes to D333834: WIP: Bug 2081931 - Defer dropping the Stylo ElementData (primary and eager pseudo-element ComputedValues) of elements whose style data is cleared through Element::ClearServoData (DOM removals, but also document teardown via Document::ClearStaleServoData,.
Wed, Oct 14, 7:43 PM
perf-ai-bot planned changes to D333829: WIP: Bug 2081928 - Reserve room for four FlexItems when an empty FlexLine in nsFlexContainerFrame::GenerateFlexLines is about to....
Wed, Oct 14, 7:38 PM
perf-ai-bot planned changes to D333812: WIP: Bug 2081903 - Skip a flex item's content size suggestion when its positive specified size suggestion is no larger than its already resolved flex base size. Use the specified suggestion capped by the maximum main size when flex-shrink is zero, or when.
Wed, Oct 14, 6:54 PM
perf-ai-bot planned changes to D333507: WIP: Bug 2081590 - Combine accelerated Canvas2D solid-color and image/mask draws in the image shader program. A negative swizzle selects solid mode, bypassing the image-sampling branch and preserving the previous solid fragment calculation algebraically;.
Wed, Oct 14, 4:52 AM
perf-ai-bot planned changes to D333484: Bug 2081572 - In CanvasDrawEventRecorder::GetContiguousBuffer, reset mDropBufferOnZero to mDropBufferLimit (gfx.canvas.remote.drop-buffer-limit, default 100) after each spare-buffer drop instead of resetting it to 1..
Wed, Oct 14, 2:26 AM · testing-exception-unchanged (Doesn't change behavior for users)
perf-ai-bot planned changes to D333480: WIP: Bug 2081567 - Replace std::deque with std::vector for DrawEventRecorderPrivate_ExternalSurfacesHolder and DrawEventRecorderPrivate::ExternalImagesHolder. The surface holder appears in BlobItemData, WebRenderFallbackData, WebRenderMaskData and BlobIma.
Wed, Oct 14, 1:40 AM

Tue, Oct 13

perf-ai-bot planned changes to D333420: WIP: Bug 2081481 - In js/src/builtin/JSON.cpp, PreprocessFastValue() (the fast JSON.stringify path) looks up a 'toJSON' property on every object being serialized via NativeLookupPropertyInline, which walks the object's shape AND its full prototype chain..
Tue, Oct 13, 9:14 PM
perf-ai-bot planned changes to D333409: WIP: Bug 2081471 - Use the ASCII-specific identifier-part predicate in TokenStreamSpecific::identifierName for the hot ASCII identifier-continuation scanning path..
Tue, Oct 13, 8:45 PM

Wed, Oct 7

perf-ai-bot planned changes to D331673: WIP: Bug 2079371 - Corrected (v2) CSS transition creation fast path, scoped to the `color` longhand..
Wed, Oct 7, 4:57 PM

Sun, Sep 27

perf-ai-bot planned changes to D329453: Bug 2075910 - When an inner window is torn down (nsGlobalWindowInner::FreeInnerObjects), its 2D canvas contexts now release their buffer providers right away. Before, they kept them until the canvas objects were garbage- and cycle-collected..
Sun, Sep 27, 2:50 AM · testing-exception-unchanged (Doesn't change behavior for users)

Sep 17 2026

perf-ai-bot planned changes to D326979: WIP: Bug 2073133 - Record scripts that enter the Baseline Interpreter in a process-wide JitHints Bloom filter and eagerly recreate their JitScript during later stencil instantiations..
Sep 17 2026, 3:21 PM

Sep 14 2026

perf-ai-bot planned changes to D325847: Bug 2071848 - Construct non-empty atomized HTML attribute values directly through the parser atom table instead of routing them through the general newStringFromBuffer portability helper. r?#dom-core,hsivonen.
Sep 14 2026, 11:46 AM · testing-exception-unchanged (Doesn't change behavior for users)

Sep 10 2026

perf-ai-bot planned changes to D324963: Bug 2070928 - Guard the HTML parser's LinkStyle lookup with the already-available tag atom, so only link and style elements perform the secondary element-name lookup and type checks. r=hsivonen!.
Sep 10 2026, 1:43 PM · testing-exception-unchanged (Doesn't change behavior for users)
perf-ai-bot planned changes to D324935: WIP: Bug 2070888 - Inline the HTML tree builder's trivial scripting, srcdoc, quirks, and declarative-shadow-root configuration accessors..
Sep 10 2026, 12:12 PM

Sep 1 2026

perf-ai-bot planned changes to D322739: WIP: Bug 2068229 - Skip the SkAAClipBlitter wrapper (and RLE forcing) in SkScan::AntiFillPath when an anti-aliased path's device bounds lie entirely within the fully-opaque interior of the AA clip. In SkScan_AntiPath.cpp, the SkRasterClip overload of Anti.
Sep 1 2026, 8:25 PM
perf-ai-bot planned changes to D322693: WIP: Bug 2068199 - Add a DrawTargetRecording::FillCircle override that directly records a compact RecordedFillCircle event for positive-radius circles while preserving the base path fallback for non-positive or NaN radii..
Sep 1 2026, 6:10 PM

Aug 31 2026

perf-ai-bot planned changes to D322325: WIP: Bug 2067770 - Replace mozjemalloc adaptive pthread mutexes with an atomic futex mutex on desktop Linux, keeping the uncontended lock and unlock paths inline..
Aug 31 2026, 2:17 PM

Aug 25 2026

perf-ai-bot planned changes to D321419: Bug 2066629 - Support MArrayFromArgumentsObject in KnownClass analysis.
Aug 25 2026, 10:45 PM · testing-exception-unchanged (Doesn't change behavior for users)
perf-ai-bot planned changes to D321418: Bug 2066628 - Support MNewDateObject in KnownClass analysis.
Aug 25 2026, 10:44 PM · testing-exception-unchanged (Doesn't change behavior for users)
perf-ai-bot planned changes to D321375: Bug 2066583 - Add compile-time-length overloads for HTML parser ASCII literal comparisons, using an exact-length check and bounded character comparison..
Aug 25 2026, 7:35 PM · testing-exception-unchanged (Doesn't change behavior for users)
perf-ai-bot planned changes to D321343: Bug 2066546 - Increase the main-thread recent atom caches from 32 to 128 entries so repeated DOM attribute-name atomization avoids more locked atom-table fallbacks..
Aug 25 2026, 6:14 PM

Aug 24 2026

perf-ai-bot planned changes to D321088: Bug 2066276 - Snapshot monomorphic inline hints once per WarpScriptOracle. r=iain!.
Aug 24 2026, 10:29 PM · testing-exception-unchanged (Doesn't change behavior for users)
perf-ai-bot updated perf-ai-bot.
Aug 24 2026, 9:37 PM
perf-ai-bot updated the summary of D321067: WIP: Bug 2066239 - Snapshot each script's bounded monomorphic-inline JitHints offset list at most once per WarpScriptOracle, lazily when traversing candidate inline ICs..
Aug 24 2026, 9:24 PM
perf-ai-bot updated the summary of D321067: WIP: Bug 2066239 - Snapshot each script's bounded monomorphic-inline JitHints offset list at most once per WarpScriptOracle, lazily when traversing candidate inline ICs..
Aug 24 2026, 9:21 PM
perf-ai-bot planned changes to D321067: WIP: Bug 2066239 - Snapshot each script's bounded monomorphic-inline JitHints offset list at most once per WarpScriptOracle, lazily when traversing candidate inline ICs..
Aug 24 2026, 9:18 PM
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