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2026-06-04 - 21:29
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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 rack3slot0.osadl.org (updated Thu Jun 04, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
82142780,0sleep30-21swapper/310:53:163
112692730,2sleep6653899cyclictest11:08:256
315842720,2sleep4652399cyclictest10:58:224
630625341,8sleep70-21swapper/707:08:187
278642500,0sleep30-21swapper/311:46:423
121542500,1sleep557-21ksoftirqd/512:28:495
275342490,0sleep30-21swapper/309:26:423
311232480,1sleep731126-21id10:19:007
309292480,0sleep50-21swapper/510:33:565
317492470,1sleep431750-21grep10:52:454
228212470,4sleep50-21swapper/512:25:455
64502460,0sleep00-21swapper/011:41:430
64502460,0sleep00-21swapper/011:41:430
616624624,8sleep00-21swapper/007:06:270
611124634,9sleep30-21swapper/307:05:423
295672460,0sleep20-21swapper/210:56:202
142312460,0sleep20-21swapper/210:33:052
278412450,0sleep00-21swapper/012:05:220
176022450,0sleep70-21swapper/711:53:357
52682440,0sleep10-21swapper/112:22:531
288292440,0sleep4481ktimersoftd/410:04:004
288292440,0sleep4481ktimersoftd/410:04:004
220922440,1sleep422046-21sshd12:23:444
218962440,0sleep50-21swapper/511:08:565
304522430,0sleep10-21swapper/110:32:081
283652430,0sleep30-21swapper/311:56:043
174772430,1sleep09-21ksoftirqd/011:31:100
613224231,8sleep20-21swapper/207:05:572
601924229,9sleep50-21swapper/507:04:245
30772420,1sleep0649199cyclictest11:13:320
249722420,1sleep223979-21sshd10:24:162
157482420,0sleep20-21swapper/212:29:022
94882410,0sleep60-21swapper/610:25:166
626124128,9sleep10-21swapper/107:07:481
610324129,9sleep40-21swapper/407:05:354
323952410,0sleep20-21swapper/211:30:082
317892410,0sleep00-21swapper/010:33:590
286932410,0sleep30-21swapper/310:32:023
178792410,0sleep50-21swapper/510:16:265
173732410,0sleep617371-21systemd-cgroups11:19:546
12232410,0sleep10-21swapper/111:26:301
117452410,0sleep40-21swapper/410:14:094
623024027,9sleep60-21swapper/607:07:216
299452400,0sleep40-21swapper/411:11:194
265352400,0sleep00-21swapper/010:15:010
191672400,0sleep20-21swapper/211:05:012
163522400,0sleep10-21swapper/112:27:171
50562390,0sleep60-21swapper/610:56:486
293722390,2sleep6653899cyclictest12:03:356
229222390,0sleep50-21swapper/511:38:525
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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