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2026-06-20 - 13:01
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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 50 highest latencies:
System rack5slot2.osadl.org (updated Sat Jun 20, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
177512203185,13sleep30-21swapper/319:07:253
177962185169,11sleep10-21swapper/119:07:591
178412184167,12sleep00-21swapper/019:08:340
177972159141,13sleep20-21swapper/219:08:002
256172450,0sleep30-21swapper/300:25:563
288942440,0sleep30-21swapper/323:08:093
195492440,0sleep10-21swapper/100:23:261
77662420,0sleep00-21swapper/022:41:320
290942410,0sleep10-21swapper/121:49:011
164492330,0sleep20-21swapper/221:42:332
23362120,0sleep00-21swapper/023:59:030
3077270,0sleep30-21swapper/323:27:033
181469960,5cyclictest0-21swapper/320:50:103
181339961,3cyclictest0-21swapper/019:10:090
21243250,0sleep30-21swapper/321:13:273
181469955,0cyclictest20684-21kworker/3:021:28:383
181469951,3cyclictest954-21ssh00:14:273
181469950,5cyclictest0-21swapper/323:10:103
181469950,5cyclictest0-21swapper/322:35:083
181469950,5cyclictest0-21swapper/321:22:403
181469950,4cyclictest0-21swapper/319:50:103
181469950,0cyclictest0-21swapper/321:50:453
181429952,3cyclictest28611-21ssh22:35:422
181429950,5cyclictest7820-21ssh21:38:322
181429950,5cyclictest0-21swapper/221:51:292
181379955,0cyclictest0-21swapper/122:40:101
181379951,2cyclictest0-21swapper/123:00:111
181379950,5cyclictest0-21swapper/123:20:111
181379950,5cyclictest0-21swapper/122:55:361
181339952,3cyclictest6110-21ssh21:53:310
181339951,2cyclictest0-21swapper/020:25:110
181339950,5cyclictest0-21swapper/023:40:530
181339950,5cyclictest0-21swapper/021:39:050
181339950,1cyclictest29327-21perl20:35:130
27240240,0sleep20-21swapper/200:10:392
181469944,0cyclictest32512-21kworker/3:119:14:173
181469944,0cyclictest20684-21kworker/3:020:43:493
181469944,0cyclictest20684-21kworker/3:019:25:293
181469944,0cyclictest20684-21kworker/3:000:16:333
181469944,0cyclictest0-21swapper/323:21:403
181469944,0cyclictest0-21swapper/300:36:463
181469942,1cyclictest32513-21ssh23:57:403
181469941,3cyclictest5989-21idleruntime-cro23:45:013
181469940,4cyclictest0-21swapper/323:30:113
181469940,4cyclictest0-21swapper/323:15:103
181469940,4cyclictest0-21swapper/322:43:343
181469940,4cyclictest0-21swapper/322:20:123
181469940,4cyclictest0-21swapper/322:17:573
181469940,4cyclictest0-21swapper/322:10:123
181469940,4cyclictest0-21swapper/322:07:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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