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2026-04-24 - 13:52
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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 100 highest latencies:
System rack3slot0.osadl.org (updated Fri Apr 24, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65719912119,70cyclictest18915-21grepconf.sh09:55:411
147982850,1sleep5721-21dbus-daemon11:31:055
134592830,1sleep513460-21bash10:16:005
6607997336,34cyclictest0-21swapper/609:55:416
656499710,70cyclictest25363-21kworker/0:509:55:400
661199650,64cyclictest4239-21kworker/7:009:55:417
19752640,2sleep5660099cyclictest11:19:115
246282560,0sleep70-21swapper/709:31:417
12792540,1sleep61-21systemd11:43:316
214912510,0sleep60-21swapper/609:37:096
214912510,0sleep60-21swapper/609:37:096
658799500,50cyclictest10486-21kworker/3:309:55:403
298912500,0sleep5551rcuc/510:00:065
624624924,9sleep30-21swapper/307:07:003
132712490,0sleep40-21swapper/410:02:544
75902480,0sleep50-21swapper/509:11:455
165162480,0sleep00-21swapper/009:44:240
146212480,0sleep70-21swapper/711:49:577
94352460,0sleep50-21swapper/512:29:035
71342460,1sleep27123-21bash09:36:172
71342460,1sleep27123-21bash09:36:172
632324622,8sleep20-21swapper/207:08:042
202032460,0sleep5709-21systemd-logind11:14:395
136992460,2sleep0656499cyclictest10:31:010
136992460,2sleep0656499cyclictest10:31:010
659499450,45cyclictest10731-21kworker/4:209:55:414
290992450,0sleep70-21swapper/711:26:187
290992450,0sleep70-21swapper/711:26:187
139272450,1sleep341-21ksoftirqd/310:46:023
298512440,0sleep20-21swapper/209:32:002
121502440,0sleep40-21swapper/411:30:564
91592430,0sleep60-21swapper/610:10:086
81432430,1sleep1657199cyclictest09:17:411
68362430,0sleep20-21swapper/212:06:182
6578994342,0cyclictest13550irq/24-ahci[00009:55:412
189472430,2sleep0656499cyclictest12:22:020
173532430,1sleep417355-21gltestperf12:20:054
152182430,0sleep40-21swapper/410:25:284
152182430,0sleep40-21swapper/410:25:284
113022420,0sleep30-21swapper/311:27:103
113022420,0sleep30-21swapper/311:27:103
626124130,8sleep70-21swapper/707:07:127
624924128,9sleep40-21swapper/407:07:014
300742410,0sleep40-21swapper/409:24:334
253952410,0sleep60-21swapper/612:03:426
197352410,0sleep30-21swapper/312:22:053
13002410,0sleep60-21swapper/610:26:346
13002410,0sleep60-21swapper/610:26:346
645324029,8sleep10-21swapper/107:09:471
630724027,9sleep60-21swapper/607:07:516
625924027,9sleep50-21swapper/507:07:105
621624027,9sleep00-21swapper/007:06:330
262262400,0sleep30-21swapper/312:09:233
141192400,0sleep40-21swapper/412:36:474
93832390,0sleep60-21swapper/612:25:126
6600993938,1cyclictest4649-21kworker/5:409:55:405
286522390,0sleep60-21swapper/610:31:556
286522390,0sleep60-21swapper/610:31:556
147852390,2sleep1657199cyclictest10:38:391
273492380,0sleep727348-21sshd09:35:347
273492380,0sleep727348-21sshd09:35:347
173342380,0sleep10-21swapper/112:29:311
211672370,0sleep30-21swapper/310:35:123
199322370,0sleep30-21swapper/309:48:193
131852330,0sleep40-21swapper/411:59:154
169122270,0sleep50-21swapper/511:21:525
657899202,3cyclictest33-21ksoftirqd/211:13:542
6578992015,3cyclictest33-21ksoftirqd/211:51:062
200702200,0sleep50-21swapper/512:09:015
6600991917,1cyclictest57-21ksoftirqd/512:13:375
657899198,1cyclictest121rcu_preempt09:48:332
6578991915,3cyclictest33-21ksoftirqd/212:10:352
6578991914,3cyclictest33-21ksoftirqd/210:57:082
6600991815,2cyclictest29790-21cp10:24:335
657899186,3cyclictest33-21ksoftirqd/210:30:112
657899186,3cyclictest33-21ksoftirqd/210:30:112
657899184,1cyclictest33-21ksoftirqd/210:17:042
657899182,1cyclictest33-21ksoftirqd/212:00:132
6578991816,1cyclictest33-21ksoftirqd/210:04:332
6578991815,2cyclictest33-21ksoftirqd/209:27:492
6578991815,1cyclictest33-21ksoftirqd/209:22:162
6578991814,3cyclictest33-21ksoftirqd/211:29:292
6578991814,3cyclictest33-21ksoftirqd/211:29:292
299872180,1sleep1756-21sshd12:18:581
257332180,0sleep20-21swapper/212:18:432
95022170,2sleep7661199cyclictest10:51:267
6600991715,1cyclictest57-21ksoftirqd/512:39:235
6600991715,1cyclictest57-21ksoftirqd/512:18:585
6600991714,3cyclictest57-21ksoftirqd/510:42:515
6600991714,1cyclictest57-21ksoftirqd/511:41:055
6600991714,1cyclictest57-21ksoftirqd/509:49:035
6600991712,1cyclictest57-21ksoftirqd/511:56:205
657899173,1cyclictest33-21ksoftirqd/211:54:552
6578991715,1cyclictest33-21ksoftirqd/212:28:152
6578991715,1cyclictest33-21ksoftirqd/211:17:072
6578991715,1cyclictest33-21ksoftirqd/209:51:382
6578991714,3cyclictest33-21ksoftirqd/212:20:562
6578991714,0cyclictest321ktimersoftd/209:15:122
6578991713,3cyclictest33-21ksoftirqd/211:40:002
244162170,0sleep00-21swapper/009:46:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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