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2026-04-05 - 21:43
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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 Sun Apr 05, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2066421080,0sleep30-21swapper/312:30:513
190072790,2sleep31668599cyclictest09:40:003
43582750,2sleep71671799cyclictest09:26:107
279172730,2sleep11667099cyclictest12:07:021
179482730,2sleep61670999cyclictest10:09:346
145442730,1sleep41669299cyclictest10:39:034
212942600,0sleep40-21swapper/411:27:414
68292580,0sleep30-21swapper/309:50:253
11552580,0sleep20-21swapper/210:21:312
39402550,0sleep70-21swapper/710:10:397
86432520,1sleep773-21ksoftirqd/709:33:477
1640425226,9sleep40-21swapper/407:04:514
240072510,0sleep30-21swapper/310:37:423
222722500,0sleep6641ktimersoftd/612:01:156
163192490,0sleep516307-21sshd11:36:395
216762470,0sleep20-21swapper/212:27:062
85762460,1sleep28554-21bash09:59:452
240452460,0sleep50-21swapper/510:52:345
107552460,1sleep710758-21unixbench_multi11:21:277
146722450,0sleep50-21swapper/511:47:445
135762450,0sleep50-21swapper/511:17:575
60112440,0sleep30-21swapper/311:30:363
271082440,0sleep20-21swapper/209:14:282
1571924426,4sleep50-21swapper/507:01:315
1402724433,8sleep20-21swapper/207:01:122
112762430,0sleep70-21swapper/712:21:027
112762430,0sleep70-21swapper/712:21:027
76152420,0sleep70-21swapper/711:28:487
267632420,0sleep20-21swapper/211:37:162
1637724229,9sleep10-21swapper/107:04:321
1623624229,9sleep30-21swapper/307:02:333
1622824229,9sleep60-21swapper/607:02:286
13272420,0sleep40-21swapper/410:30:544
234312410,0sleep40-21swapper/411:35:184
211752410,0sleep00-21swapper/010:02:150
1619124128,9sleep70-21swapper/707:01:577
324342400,0sleep50-21swapper/510:14:065
313032400,0sleep10-21swapper/112:03:341
30732400,0sleep00-21swapper/011:50:520
300882400,0sleep00-21swapper/010:58:300
216712400,1sleep321674-21grepconf.sh11:59:193
133392400,0sleep3401ktimersoftd/311:36:293
261692390,2sleep41669299cyclictest12:16:184
261692390,2sleep41669299cyclictest12:16:184
1632723928,8sleep00-21swapper/007:03:510
141002390,0sleep40-21swapper/409:28:314
325622370,0sleep20-21swapper/212:14:482
252562370,0sleep70-21swapper/709:18:017
217552370,0sleep10-21swapper/111:44:281
186352370,0sleep00-21swapper/010:37:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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