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2026-04-28 - 20:28
OSADL QA Farm

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of system in rack #0, slot #5

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 rack0slot5.osadl.org (updated Tue Apr 28, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
46787399525524,1cyclictest0-21swapper/521:16:4511
46787399502501,1cyclictest496653-21kworker/5:2+i915-unordered20:35:4511
4679119949820,478cyclictest0-21swapper/1421:42:446
4679119949820,478cyclictest0-21swapper/1421:42:446
467865994954,490cyclictest0-21swapper/322:01:449
4679119949410,29cyclictest0-21swapper/1420:54:456
46787399489488,1cyclictest159145-21kworker/5:0+i915-unordered19:16:4511
467911994824,477cyclictest0-21swapper/1421:32:446
4679119948018,461cyclictest0-21swapper/1420:35:456
4679119947513,461cyclictest0-21swapper/1422:02:446
46790799475474,1cyclictest565212-21kworker/13:0+i915-unordered21:16:455
46787399474473,1cyclictest0-21swapper/521:32:4411
467901994730,60cyclictest124-21ksoftirqd/1122:55:443
46790799471470,1cyclictest581163-21kworker/13:2+i915-unordered21:42:445
46790799471470,1cyclictest581163-21kworker/13:2+i915-unordered21:42:445
46791199470469,0cyclictest0-21swapper/1421:19:456
4678549947023,30cyclictest0-21swapper/023:10:050
4679019946522,30cyclictest0-21swapper/1120:24:443
4678789946519,30cyclictest0-21swapper/619:54:4512
4679019946113,445cyclictest624707-21switchtime22:19:083
46791599459457,2cyclictest536908-21kworker/15:0+i915-unordered20:54:457
46790799457452,4cyclictest1818-21snmpd22:33:575
46790799456454,2cyclictest573196-21kworker/13:1+i915-unordered21:32:445
4679019945616,30cyclictest0-21swapper/1122:59:443
467891994565,59cyclictest0-21swapper/923:29:4415
46791199455454,1cyclictest0-21swapper/1422:45:446
4678919945429,29cyclictest0-21swapper/923:57:4415
46787899451449,2cyclictest69750irq/159-i91521:42:4412
46787899451449,2cyclictest69750irq/159-i91521:42:4412
46785999451448,3cyclictest1818-21snmpd19:53:211
467896994504,29cyclictest0-21swapper/1021:48:402
467896994504,29cyclictest0-21swapper/1021:48:402
4678549945025,30cyclictest0-21swapper/023:15:070
4679019944826,421cyclictest0-21swapper/1121:37:283
4679019944826,421cyclictest0-21swapper/1121:37:283
4679019944817,29cyclictest0-21swapper/1121:50:443
46787899448447,1cyclictest69750irq/159-i91520:54:4512
46790199447446,1cyclictest605423-21kworker/11:1+i915-unordered22:01:443
4678969944726,421cyclictest0-21swapper/1020:44:062
467891994477,28cyclictest0-21swapper/900:05:4415
46789199446445,1cyclictest0-21swapper/922:02:4415
467878994462,30cyclictest0-21swapper/620:04:4412
46787399446446,0cyclictest573288-21kworker/5:1+i915-unordered21:19:4511
46791199445445,0cyclictest0-21swapper/1400:00:446
4678599944526,418cyclictest0-21swapper/121:40:311
4678599944526,418cyclictest0-21swapper/121:40:311
4678599944525,419cyclictest0-21swapper/122:57:291
46790199444442,1cyclictest577123-21kworker/11:1+i915-unordered21:25:273
4678829944423,420cyclictest0-21swapper/723:59:4413
4678599944424,419cyclictest0-21swapper/119:31:121
4678599944423,420cyclictest0-21swapper/121:00:281
467907994431,30cyclictest0-21swapper/1321:49:445
4678599944323,420cyclictest0-21swapper/122:16:301
4678549944321,30cyclictest0-21swapper/023:19:050
4678919944223,418cyclictest0-21swapper/920:28:4015
467878994420,29cyclictest0-21swapper/623:36:4412
4679159944126,414cyclictest0-21swapper/1520:51:447
4678969944122,418cyclictest0-21swapper/1020:54:302
4678969944120,420cyclictest0-21swapper/1021:34:302
4678969944120,420cyclictest0-21swapper/1021:34:302
4678969944118,422cyclictest0-21swapper/1019:53:312
467891994411,29cyclictest0-21swapper/922:54:4415
4679159944025,414cyclictest0-21swapper/1521:17:447
4679019944020,419cyclictest0-21swapper/1119:50:083
4679019944019,421cyclictest0-21swapper/1121:10:283
4678969944019,418cyclictest0-21swapper/1020:14:082
4678919944017,30cyclictest0-21swapper/922:04:4415
46791599439437,2cyclictest476472-21kworker/15:0+i915-unordered19:17:457
4678659943917,420cyclictest0-21swapper/321:42:309
4678659943917,420cyclictest0-21swapper/321:42:309
4678639943923,414cyclictest0-21swapper/222:00:288
4678919943817,29cyclictest0-21swapper/923:35:4415
4678639943816,30cyclictest0-21swapper/220:59:448
4678599943817,418cyclictest0-21swapper/120:26:301
4679119943718,418cyclictest0-21swapper/1421:56:286
46790799437408,29cyclictest0-21swapper/1319:16:455
467891994370,28cyclictest0-21swapper/920:10:4415
467882994378,30cyclictest0-21swapper/723:14:2913
4678599943714,30cyclictest34-21ksoftirqd/123:39:441
46791199436434,2cyclictest609339-21kworker/14:2+i915-unordered22:15:446
46791199436432,3cyclictest1818-21snmpd19:44:576
4678829943611,29cyclictest0-21swapper/700:21:2813
4678659943615,420cyclictest0-21swapper/322:40:069
4678659943614,421cyclictest0-21swapper/321:55:059
4679119943516,417cyclictest0-21swapper/1420:04:076
46787899435434,1cyclictest69750irq/159-i91521:32:4412
4678639943524,411cyclictest0-21swapper/220:20:448
46790199434431,3cyclictest467306-21kworker/u64:9+events_unbound20:21:453
46785499434432,1cyclictest688470-21kworker/0:0+i915-unordered23:43:260
4678919943322,410cyclictest0-21swapper/923:19:4415
46787899433432,1cyclictest69750irq/159-i91520:35:4512
4678599943211,420cyclictest0-21swapper/122:41:051
46789199431430,1cyclictest0-21swapper/919:22:4515
4678919943119,411cyclictest0-21swapper/919:41:4515
4678829943115,413cyclictest0-21swapper/723:46:4413
4678739943117,413cyclictest0-21swapper/519:52:4511
46791199430429,1cyclictest69750irq/159-i91519:22:456
4678919943019,410cyclictest0-21swapper/919:37:4515
4678919943018,412cyclictest0-21swapper/922:49:4415
4678639943018,412cyclictest0-21swapper/222:21:448
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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