Re: [Collectl-interest] Clarification on counters

quite honestly there are so many stats I'm not that familiar with all of
them in detail. for example memory stats come from /proc/meminfo and
/proc/vmstat and virtually all utilities that report the same data. might
be helpful to look at some other utilities to confirm they're reporting the
same numbers and how they've documented it. if there are better words I can
add to collectl descripting I'll be happy to do so
-mark

On Jun 20, 2017 4:39 AM, "Fulvio Scapin" <tra...@gm...> wrote:

Hello.

I was emptying out a swap volume (swapoff) and looking at the output of
collectl  -sm  --verbose -oT , while trying to make sense of a system with
a continuously rising swap occupation despite vm.swappiness set to 0.

Since the total swap memory was progressively shrinking down from a few
hundreds MB, I can't quite understand the values of swapped-in memory in
the GB range ( e.g. 6220M, 8536M ).
Is it a collectl bug or just a misunderstanding of mine?

# uname -a
Linux mail 4.4.0-79-generic #100-Ubuntu SMP Wed May 17 19:58:14 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux


# MEMORY SUMMARY
#         <------------------------------------Physical
Memory------------------------------------------><----------
-Swap------------><-------Paging------>
#            Total    Used    Free    Buff  Cached    Slab  Mapped    Anon
  AnonH  Commit  Locked Inact Total  Used  Free   In  Out Fault MajFt   In
 Out
10:24:46    28143M  27931M 216776K   1504M   5453M   1089M 348180K  19686M
 17818M  21190M   3656K 3186M  247M  247M     0 6220M    0    15     0 6240
 164
10:24:47    28143M  27936M 211496K   1504M   5454M   1089M 348180K  19691M
 17818M  21190M   3656K 3186M  240M  240M     0 6472M    0     1     0 6472
1860
10:24:48    28143M  27945M 203004K   1504M   5455M   1089M 348180K  19698M
 17818M  21190M   3656K 3186M  232M  232M     0 8484M    0    44     0 9020
 664
10:24:49    28143M  27927M 220972K   1500M   5437M   1089M 347972K  19702M
 17818M  21190M   3656K 3180M  227M  227M     0 4768M    0   113     0 4772
2876
10:24:50    28143M  27934M 214276K   1500M   5438M   1089M 347972K  19708M
 17818M  21190M   3656K 3179M  221M  221M     0 6752M    0    67     0 7464
1468
10:24:51    28143M  27943M 204968K   1500M   5439M   1089M 347976K  19715M
 17818M  21190M   3656K 3179M  212M  212M     0 8536M    0   278     0 9184
 364
10:24:52    28143M  27927M 220716K   1498M   5419M   1089M 347908K  19721M
 17816M  21190M   3656K 3173M  205M  205M     0 7428M    0   388     0 7724
1444
10:24:53    28143M  27934M 213628K   1498M   5421M   1089M 347908K  19728M
 17816M  21190M   3656K 3173M  197M  197M     0 7812M    0    95     0 7864
 320
10:24:54    28143M  27941M 206700K   1499M   5423M   1089M 347908K  19732M
 17816M  21190M   3656K 3173M  192M  192M     0 5576M    0    77     0 6080
 388
10:24:55    28143M  27925M 223432K   1496M   5404M   1089M 347940K  19736M
 17816M  21190M   3656K 3166M  186M  186M     0 5876M    0    53     7 5960
 268
10:24:56    28143M  27933M 215256K   1497M   5407M   1089M 347824K  19739M
 17816M  21190M   3656K 3167M  181M  181M     0 5720M    0  3721     0 6444
5568
10:24:57    28143M  27938M 209808K   1497M   5409M   1089M 347828K  19743M
 17816M  21190M   3656K 3167M  176M  176M     0 4756M    0    67     0 4904
1312
10:24:58    28143M  27922M 225808K   1495M   5390M   1089M 347868K  19748M
 17816M  21190M   3656K 3162M  171M  171M     0 4588M    0   559     1 5540
3680
10:24:59    28143M  27928M 220016K   1495M   5391M   1089M 347712K  19753M
 17816M  21190M   3656K 3162M  166M  166M     0 5696M    0    45     0 5700
3056
10:25:00    28143M  27934M 213708K   1495M   5392M   1089M 347712K  19757M
 17816M  21190M   3656K 3162M  161M  161M     0 4537M    0    77    12 4661
 740
10:25:01    28143M  27939M 208256K   1495M   5393M   1089M 347768K  19761M
 17816M  21155M   3656K 3162M  157M  157M     0 4000M    0  2374     2 4253
1122
10:25:02    28143M  27943M 204628K   1496M   5395M   1089M 347828K  19764M
 17816M  21155M   3656K 3162M  153M  153M     0 4768M    0   724     8 5052
4244
10:25:03    28143M  27929M 218600K   1493M   5377M   1089M 347800K  19769M
 17816M  21155M   3656K 3156M  146M  146M     0 6524M    0    90     4 6544
2748
10:25:04    28143M  27930M 217436K   1494M   5376M   1089M 347848K  19772M
 17816M  21155M   3656K 3155M  142M  142M     0 4012M    0   103     0 4456
8308
10:25:05    28143M  27935M 212584K   1494M   5377M   1089M 347848K  19777M
 17816M  21155M   3656K 3155M  138M  138M     0 4964M    0    64     0 4968
 928
10:25:06    28143M  27940M 207656K   1494M   5379M   1089M 347872K  19780M
 17816M  21155M   3656K 3155M  133M  133M     0 4900M    0    31     0 4928
 316
10:25:07    28143M  27923M 224816K   1488M   5363M   1089M 347872K  19785M
 17816M  21155M   3656K 3149M  125M  125M     0 5828M    0   147    10 5872
 392



Thanks in advance and also thanks a lot for collectl as a tool.


Regards,
Fulvio Scapin

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