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2025-10-15 - 19:33
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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
Characteristics of the 50 highest latencies:
System rack5slot0.osadl.org (updated Wed Oct 15, 2025 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2973421660,1sleep029711-21sshd12:38:540
2935521510,0sleep029323-21sshd09:54:450
2013721340,0sleep21847-21nfsd10:55:042
2878121330,0sleep028779-21sshd12:08:520
3073521300,2sleep10-21swapper/112:12:101
422021230,1sleep02405-21runrttasks09:58:420
321921230,2sleep20-21swapper/211:56:522
2480721220,0sleep00-21swapper/011:59:050
1234221220,2sleep20-21swapper/211:44:482
2978921150,112sleep326950irq/26-ahci[00012:05:483
2818621140,1sleep028182-21sshd09:24:320
2818621140,1sleep028182-21sshd09:24:310
2543621140,1sleep025419-21sshd09:14:130
1574821090,2sleep347-21rcuop/310:40:293
1650921080,1sleep316508-21sshd12:20:223
1726021050,2sleep317242-21munin-run11:15:013
26876210230,43sleep30-21swapper/307:08:153
84152990,3sleep32729599cyclictest09:12:193
216662980,3sleep10-21swapper/109:10:221
77212970,5sleep32729599cyclictest09:15:373
77212970,5sleep32729599cyclictest09:15:363
146332940,4sleep22729499cyclictest10:33:462
290882920,2sleep20-21swapper/212:08:542
133382920,0sleep00-21swapper/012:16:500
115772910,3sleep30-21swapper/311:20:573
274802900,0sleep00-21swapper/010:17:500
283092880,0sleep00-21swapper/010:04:160
245562880,0sleep00-21swapper/010:38:100
158682880,1sleep015865-21sshd12:04:310
284622870,2sleep10-21swapper/112:38:471
32492860,4sleep20-21swapper/211:23:362
266552867,41sleep10-21swapper/107:05:321
268322850,2sleep326828-21sshd10:04:073
62032830,2sleep10-21swapper/111:23:561
277132830,2sleep10-21swapper/111:29:291
219472830,1sleep20-21swapper/209:50:262
98462810,0sleep00-21swapper/010:05:350
23392800,1sleep20-21swapper/209:31:592
141702800,3sleep30-21swapper/311:54:433
272292790,1sleep32729599cyclictest11:09:193
255352790,2sleep125526-21sshd10:41:321
195602780,2sleep10-21swapper/110:16:581
297902770,2sleep229781-21sshd12:24:332
47462760,2sleep34748-21bash12:36:373
304122760,0sleep00-21swapper/012:21:390
139772760,2sleep20-21swapper/212:28:542
270532750,0sleep127049-21rm11:49:441
196552740,1sleep20-21swapper/211:08:292
298382730,3sleep10-21swapper/112:21:351
67542720,4sleep12729399cyclictest11:40:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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