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2026-06-04 - 23:54

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, 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 rackeslot5s.osadl.org (updated Thu Jun 04, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
803299270,26cyclictest19974-21cron07:35:001
804099250,24cyclictest0-21swapper/310:27:383
8032992523,2cyclictest27186-21ssh11:03:581
8032992523,1cyclictest0-21swapper/109:18:251
8032992522,2cyclictest6196-21perf12:15:011
803299250,1cyclictest0-21swapper/111:20:251
803099250,24cyclictest0-21swapper/009:22:270
803099250,24cyclictest0-21swapper/007:38:520
8040992424,0cyclictest0-21swapper/312:08:583
8040992423,1cyclictest1726-21diskmemload11:40:483
804099240,23cyclictest6720-21ssh09:14:323
804099240,23cyclictest24403-21ssh10:00:393
804099240,23cyclictest1726-21diskmemload10:10:243
804099240,23cyclictest0-21swapper/311:31:583
804099240,1cyclictest0-21swapper/312:24:593
803699242,21cyclictest1726-21diskmemload11:33:502
8036992422,1cyclictest0-21swapper/210:31:302
8036992420,0cyclictest0-21swapper/210:25:342
803699240,23cyclictest30335-21ssh09:36:252
8032992421,2cyclictest10872-21ssh10:18:521
803299240,24cyclictest0-21swapper/112:36:271
803299240,23cyclictest4579-21ssh10:43:421
803299240,23cyclictest1726-21diskmemload10:11:021
803299240,23cyclictest0-21swapper/112:06:161
803099242,22cyclictest62550irq/127-eno111:18:270
803099240,2cyclictest29634-21ssh10:35:370
803099240,24cyclictest1726-21diskmemload11:47:310
803099240,24cyclictest0-21swapper/011:31:280
803099240,23cyclictest0-21swapper/009:50:420
803099240,0cyclictest1726-21diskmemload12:15:170
8040992323,0cyclictest0-21swapper/312:19:013
8040992323,0cyclictest0-21swapper/311:00:173
8040992323,0cyclictest0-21swapper/309:59:163
8040992323,0cyclictest0-21swapper/309:39:163
8040992320,2cyclictest18688-21sh09:25:373
8040992320,2cyclictest12792-21ssh10:50:083
804099230,23cyclictest0-21swapper/312:11:563
804099230,23cyclictest0-21swapper/310:37:443
804099230,22cyclictest9139-21sh09:47:193
804099230,22cyclictest8461-21ssh11:47:263
804099230,22cyclictest22496-21turbostat07:40:003
804099230,22cyclictest1726-21diskmemload12:35:223
804099230,22cyclictest16517-21missed_timers09:23:563
804099230,22cyclictest12391-21ssh11:20:123
804099230,0cyclictest1726-21diskmemload09:42:493
804099230,0cyclictest0-21swapper/311:35:283
804099230,0cyclictest0-21swapper/310:33:443
804099230,0cyclictest0-21swapper/308:53:503
8036992323,0cyclictest1726-21diskmemload11:53:042
8036992323,0cyclictest0-21swapper/212:15:582
8036992323,0cyclictest0-21swapper/211:11:082
8036992323,0cyclictest0-21swapper/211:11:082
8036992323,0cyclictest0-21swapper/210:56:232
8036992323,0cyclictest0-21swapper/210:10:132
8036992323,0cyclictest0-21swapper/209:49:332
8036992323,0cyclictest0-21swapper/209:31:122
8036992323,0cyclictest0-21swapper/209:16:292
8036992323,0cyclictest0-21swapper/209:11:202
8036992321,1cyclictest30005-21ssh10:06:062
8036992320,2cyclictest28841-21ssh11:05:162
803699230,2cyclictest607-21in:imuxsock08:50:012
803699230,2cyclictest17628-21rm09:54:262
803699230,2cyclictest14008-21ssh09:21:292
803699230,23cyclictest0-21swapper/212:38:432
803699230,23cyclictest0-21swapper/212:31:192
803699230,23cyclictest0-21swapper/212:25:512
803699230,23cyclictest0-21swapper/211:42:512
803699230,23cyclictest0-21swapper/210:39:162
803699230,22cyclictest2435-21sh12:12:042
803699230,22cyclictest24114-21ssh10:00:082
803699230,22cyclictest23057-21ssh12:00:182
803699230,22cyclictest1726-21diskmemload11:55:192
803699230,22cyclictest11999-21cron11:20:012
803699230,22cyclictest0-21swapper/211:49:162
803699230,22cyclictest0-21swapper/211:02:582
803699230,0cyclictest0-21swapper/211:36:542
803699230,0cyclictest0-21swapper/210:45:002
8032992323,0cyclictest1726-21diskmemload11:47:471
8032992323,0cyclictest0-21swapper/111:43:281
8032992323,0cyclictest0-21swapper/111:28:391
8032992323,0cyclictest0-21swapper/111:08:351
8032992323,0cyclictest0-21swapper/110:27:521
8032992322,1cyclictest1726-21diskmemload12:20:421
8032992321,1cyclictest8425-21sh10:46:301
8032992321,1cyclictest19259-21diskmemload10:56:501
8032992321,1cyclictest0-21swapper/111:35:311
8032992321,1cyclictest0-21swapper/109:29:371
8032992320,2cyclictest1914-21dump-pmu-power10:40:011
803299230,23cyclictest0-21swapper/111:58:521
803299230,23cyclictest0-21swapper/109:59:381
803299230,22cyclictest7961-21rm12:17:191
803299230,22cyclictest31340-21ssh09:37:581
803299230,22cyclictest13569-21diskmemload09:20:521
803299230,22cyclictest13389-21ssh10:20:211
803299230,22cyclictest0-21swapper/111:17:471
803299230,1cyclictest0-21swapper/111:11:361
803299230,1cyclictest0-21swapper/111:11:361
803299230,0cyclictest0-21swapper/110:53:171
803299230,0cyclictest0-21swapper/109:54:111
803299230,0cyclictest0-21swapper/109:33:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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