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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