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2026-07-19 - 05:07
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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 100 highest latencies:
System rackeslot8.osadl.org (updated Sun Jul 19, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
251830623110,1sleep02518308-21gltestperf23:40:150
2126581992926,1cyclictest0-21swapper/323:20:193
2126581992421,1cyclictest0-21swapper/320:00:013
2126581992421,1cyclictest0-21swapper/319:50:253
2126581992320,1cyclictest0-21swapper/323:40:193
2126581992320,1cyclictest0-21swapper/323:29:593
2126581992220,0cyclictest0-21swapper/319:40:153
2126581992219,1cyclictest0-21swapper/323:00:203
2126581992219,1cyclictest0-21swapper/320:00:203
2126581992219,1cyclictest0-21swapper/319:20:013
2126581992118,1cyclictest0-21swapper/323:55:163
2126581992118,1cyclictest0-21swapper/322:40:223
2126581992118,1cyclictest0-21swapper/321:40:103
212658199211,16cyclictest2557154-21chrt00:05:133
212658199211,16cyclictest2250443-21taskset20:44:263
212658199210,18cyclictest2212012-21turbostat20:19:553
212658199204,5cyclictest2415755-21turbostat22:35:003
2126581992018,1cyclictest0-21swapper/321:50:003
2126581992017,1cyclictest0-21swapper/323:35:143
2126581992017,1cyclictest0-21swapper/300:10:163
2126581992016,1cyclictest0-21swapper/319:20:183
212658199201,15cyclictest2578108-21taskset00:15:243
212658199201,14cyclictest2594665-21taskset00:26:303
212658199201,14cyclictest2556256-21taskset00:03:323
212658199201,14cyclictest2269726-21turbostat21:00:013
212658199201,13cyclictest2263389-21taskset20:55:003
21961632190,5sleep22141371-21kworker/u16:3+events_unbound20:00:192
2126581991917,1cyclictest0-21swapper/322:35:193
2126581991916,1cyclictest0-21swapper/323:00:013
2126581991916,1cyclictest0-21swapper/322:20:173
2126581991916,1cyclictest0-21swapper/319:10:143
2126581991916,1cyclictest0-21swapper/300:31:263
212658199191,14cyclictest2345492-21chrt21:50:143
212658199191,14cyclictest2328206-21taskset21:36:183
2126581991815,1cyclictest0-21swapper/323:15:223
2126581991815,1cyclictest0-21swapper/321:20:123
2126581991815,1cyclictest0-21swapper/320:20:073
2126581991815,1cyclictest0-21swapper/320:10:213
2126581991815,1cyclictest0-21swapper/320:10:203
2126581991815,1cyclictest0-21swapper/319:25:273
2126581991814,1cyclictest0-21swapper/322:00:193
212658199181,14cyclictest2538947-21taskset23:50:263
212658199181,13cyclictest2611124-21taskset00:38:493
212658199181,13cyclictest2586534-21taskset00:20:323
212658199181,13cyclictest2508195-21taskset23:30:453
212658199181,13cyclictest2406690-21taskset22:26:343
212658199181,13cyclictest2375840-21taskset22:08:143
212658199181,13cyclictest2276043-21taskset21:03:223
212658199181,13cyclictest2237281-21taskset20:30:473
212658199181,13cyclictest2160463-21taskset19:31:383
2126581991714,1cyclictest0-21swapper/323:05:263
2126581991714,1cyclictest0-21swapper/322:45:133
2126581991714,1cyclictest0-21swapper/322:10:183
2126581991714,1cyclictest0-21swapper/321:10:093
2126581991714,1cyclictest0-21swapper/319:39:533
212658199171,13cyclictest2445704-21taskset22:51:243
212658199171,13cyclictest2353618-21taskset21:55:143
212658199171,13cyclictest2321657-21taskset21:34:463
212658199171,13cyclictest2243822-21taskset20:37:293
212658199171,12cyclictest2296072-21taskset21:15:253
212658199171,12cyclictest2256631-21taskset20:45:593
212658199171,12cyclictest2179704-21taskset19:46:103
235919821610,4sleep10-21swapper/121:55:341
2126581991613,1cyclictest0-21swapper/322:15:133
212658199161,12cyclictest2531721-21taskset23:45:483
212658199161,12cyclictest2476759-21taskset23:10:403
212658199161,12cyclictest2306461-21taskset21:25:033
212658199161,12cyclictest2230877-21taskset20:25:343
212658199161,11cyclictest2204656-21chrt20:05:223
25233522150,6sleep22523475-21sensors_temp23:40:272
2126581991512,1cyclictest0-21swapper/321:05:273
23985032141,10sleep02398509-21ssh22:20:430
22986222141,10sleep00-21swapper/021:20:130
22664412141,10sleep02268331-21cut20:55:180
21262252140,2sleep30-21swapper/319:07:133
25805522132,9sleep12405748-21kworker/u16:0+ext4-rsv-conversion00:20:111
25967662121,8sleep02597682-21cut00:30:170
25877772125,1sleep2171rcu_preempt00:24:012
24935062123,6sleep12493507-21diskmemload23:23:301
24691652120,9sleep02469171-21ssh23:06:170
24350122121,8sleep02436715-21latency22:45:200
23814352120,2sleep0222-21plymouthd22:10:180
23058522120,8sleep12305858-21ssh21:24:111
25623632110,8sleep02562412-21ssh00:05:230
24959582110,7sleep12497535-21tr23:25:191
24847212111,8sleep20-21swapper/223:16:012
24004162111,7sleep22400374-21/usr/sbin/munin22:25:142
23610842116,3sleep186188-21systemd-journal22:00:061
23529542110,8sleep22352960-21ssh21:54:582
23377072111,6sleep12337731-21apt-get21:45:161
23217192110,3sleep1321rcuc/121:35:001
22122832111,2sleep20-21swapper/220:15:122
21806692110,7sleep12180798-21cut19:50:171
21739112111,8sleep20-21swapper/219:45:132
21469972111,7sleep22147031-21ntpq19:20:242
25687082101,6sleep02570033-21/usr/sbin/munin00:10:190
25514612101,6sleep22552768-21kthreadcore00:00:192
25373002100,1sleep2421rcuc/223:50:202
24997052100,2sleep2171rcu_preempt23:25:232
24462752101,6sleep02446281-21ssh22:53:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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