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2024-09-12 - 07:19

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #c, slot #3

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackcslot3s.osadl.org (updated Thu Sep 12, 2024 00:50:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81792683662,15sleep40-21swapper/419:06:504
81792683662,15sleep40-21swapper/419:06:504
81032616596,14sleep10-21swapper/119:05:521
81032616596,14sleep10-21swapper/119:05:521
81512538518,15sleep30-21swapper/319:06:263
81512538518,15sleep30-21swapper/319:06:263
83412487466,15sleep20-21swapper/219:09:052
83412487466,15sleep20-21swapper/219:09:052
83212479455,16sleep00-21swapper/019:08:460
83212479455,16sleep00-21swapper/019:08:460
82512460437,16sleep60-21swapper/619:07:496
82512460437,16sleep60-21swapper/619:07:496
83372402381,14sleep70-21swapper/719:09:027
83372402381,14sleep70-21swapper/719:09:027
81912355330,19sleep50-21swapper/519:07:005
81912355330,19sleep50-21swapper/519:07:005
884899179175,2cyclictest586-21rs:main5
884899178175,2cyclictest586-21rs:main5
884899178175,2cyclictest586-21rs:main5
884899178175,2cyclictest250-21jbd2/sda2-820:06:025
884999177174,2cyclictest586-21rs:main6
884499176172,2cyclictest586-21rs:main1
884499175172,2cyclictest586-21rs:main1
884499175172,2cyclictest586-21rs:main1
884499175172,2cyclictest586-21rs:main1
884599150147,2cyclictest586-21rs:main2
88459913638,1cyclictest282-21systemd-journal23:34:592
8850997573,2cyclictest0-21swapper/700:02:557
8847996968,1cyclictest0-21swapper/400:36:234
8845996916,0cyclictest282-21systemd-journal20:45:012
8847996767,0cyclictest0-21swapper/419:37:334
8850996360,2cyclictest25581-21cat21:55:317
8850996262,0cyclictest0-21swapper/722:44:287
8850996260,2cyclictest0-21swapper/721:02:377
8847996261,0cyclictest10659-21sh22:35:004
8844996261,0cyclictest18371-21unixbench_multi19:25:391
8844996261,0cyclictest18371-21unixbench_multi19:25:391
8846996159,1cyclictest463-21tr00:25:143
8846995856,1cyclictest27552-21grep20:55:013
8846995754,2cyclictest586-21rs:main3
8844995755,1cyclictest24479-21needreboot23:00:211
8843995654,1cyclictest28652-21sh22:04:590
198532550,0sleep20-21swapper/223:59:092
8846995422,30cyclictest6460-21grep22:25:143
8845995453,0cyclictest23740-21grep23:00:122
8844995329,23cyclictest5494-21grep22:20:291
8850995151,0cyclictest0-21swapper/722:35:257
8848995048,1cyclictest12857-21cron20:25:015
8847995015,1cyclictest282-21systemd-journal23:20:004
8845995048,1cyclictest32137-21sh00:24:592
884999490,1cyclictest0-21swapper/623:50:116
8843994947,1cyclictest24254-21cpuspeed_turbos19:40:140
8847994847,0cyclictest7518-21sh23:35:004
8849994747,0cyclictest13238-21kworker/6:100:02:546
8849994746,0cyclictest10455-21cron20:20:016
8849994745,1cyclictest17349-21cat20:30:366
8847994745,1cyclictest3474-21cat22:19:594
8847994745,1cyclictest20504-21tr00:00:124
8845994746,0cyclictest14923-21sh23:49:592
8850994646,0cyclictest0-21swapper/719:57:067
8848994625,14cyclictest27900-21cpuspeed_turbos00:15:135
8845994645,0cyclictest4700-21sh00:35:002
8849994544,0cyclictest5308-21tr00:35:146
8849994544,0cyclictest27480-21grep23:05:336
8847994545,0cyclictest14979-21kworker/4:222:00:524
8844994544,0cyclictest29737-21sh00:20:001
8844994521,0cyclictest10575-21cpuspeed_turbos23:40:131
8850994442,1cyclictest2486-21cat20:00:337
8849994444,0cyclictest0-21swapper/600:24:596
8846994442,1cyclictest7515-21sh23:35:003
8843994444,0cyclictest0-21swapper/023:00:000
8843994442,1cyclictest20781-21unixbench_multi19:30:330
8849994334,8cyclictest5289-21cpuspeed_turbos21:15:146
8848994342,0cyclictest24652-21kworker/5:200:36:245
8847994341,1cyclictest12576-21cpuspeed_turbos21:30:134
8846994342,0cyclictest29738-21sh00:20:003
8843994341,1cyclictest12148-21grep19:15:120
8843994341,1cyclictest12148-21grep19:15:120
8850994240,1cyclictest24284-21tr19:40:157
8848994240,1cyclictest10456-21sh20:20:015
8847994240,1cyclictest3578-21grep21:10:214
8847994240,1cyclictest18524-21tr20:35:144
8843994241,0cyclictest22670-21sh20:45:010
8850994139,1cyclictest2916-21cpuspeed_turbos21:10:137
8847994139,1cyclictest31642-21tr22:10:144
8846994139,1cyclictest14926-21sh23:50:003
8845994140,0cyclictest22322-21sh00:05:002
8845994139,1cyclictest29254-21cut22:05:142
8845994119,1cyclictest282-21systemd-journal00:29:592
8844994140,0cyclictest23866-21sendmail_mailqu00:05:261
8844994110,15cyclictest0-21swapper/123:26:501
8843994139,1cyclictest27974-21unixbench_multi19:45:330
8843994139,1cyclictest26366-21latency_hist21:59:590
8843994139,1cyclictest18440-21tr20:35:140
8843994138,2cyclictest15256-21grep22:40:320
8847994038,1cyclictest32139-21sh00:25:004
8847994038,1cyclictest18182-21cpuspeed_turbos23:55:144
8847994038,1cyclictest17150-21grep23:50:304
8847994038,1cyclictest11955-21proc_pri20:20:284
8844994039,0cyclictest4703-21sh00:34:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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