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2026-06-21 - 14:10
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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 Jun 21, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2177760992926,1cyclictest0-21swapper/323:25:153
2177760992623,1cyclictest0-21swapper/300:39:593
2177760992320,1cyclictest0-21swapper/300:15:153
2177760992219,1cyclictest0-21swapper/320:20:133
2177760992219,1cyclictest0-21swapper/300:00:093
217776099220,18cyclictest2224804-21turbostat19:44:593
2177760992119,1cyclictest0-21swapper/323:44:493
2177760992119,1cyclictest0-21swapper/321:20:013
2177760992119,1cyclictest0-21swapper/319:30:183
2177760992118,1cyclictest0-21swapper/321:50:283
2177760992118,1cyclictest0-21swapper/300:30:163
2177760992118,1cyclictest0-21swapper/300:20:203
2177760992018,1cyclictest0-21swapper/322:20:013
2177760992017,1cyclictest0-21swapper/323:20:233
2177760992017,1cyclictest0-21swapper/322:40:113
2177760992017,1cyclictest0-21swapper/321:35:183
2177760992017,1cyclictest0-21swapper/321:10:203
2177760992017,1cyclictest0-21swapper/300:27:443
217776099201,14cyclictest2619333-21taskset00:13:243
217776099201,14cyclictest2457114-21taskset22:29:133
2177760991917,1cyclictest0-21swapper/320:57:063
2177760991917,1cyclictest0-21swapper/319:55:163
2177760991916,1cyclictest0-21swapper/322:10:203
2177760991916,1cyclictest0-21swapper/321:10:013
2177760991916,1cyclictest0-21swapper/320:41:563
2177760991916,1cyclictest0-21swapper/319:55:003
2177760991916,1cyclictest0-21swapper/319:45:143
2177760991916,1cyclictest0-21swapper/319:11:173
217776099191,14cyclictest2481693-21taskset22:45:163
217776099191,14cyclictest2307486-21taskset20:45:253
217776099184,10cyclictest2558391-21chrt23:35:123
2177760991816,1cyclictest0-21swapper/323:56:153
2177760991816,1cyclictest0-21swapper/320:31:133
2177760991816,1cyclictest0-21swapper/319:29:103
2177760991816,0cyclictest0-21swapper/321:24:513
2177760991815,1cyclictest0-21swapper/323:00:053
2177760991815,1cyclictest0-21swapper/322:56:503
2177760991815,1cyclictest0-21swapper/322:20:333
2177760991815,1cyclictest0-21swapper/320:28:293
2177760991815,1cyclictest0-21swapper/319:40:013
217776099181,13cyclictest2588148-21taskset23:52:233
217776099181,13cyclictest2557169-21taskset23:32:273
217776099181,13cyclictest2557169-21taskset23:32:263
217776099181,13cyclictest2520400-21taskset23:10:143
217776099181,13cyclictest2410913-21taskset21:59:253
217776099181,13cyclictest2371177-21taskset21:30:433
217776099181,13cyclictest2364214-21taskset21:28:053
217776099181,13cyclictest2269595-21taskset20:16:183
22830012170,5sleep02283081-21grep20:30:110
217776099172,11cyclictest2314457-21taskset20:51:133
2177760991715,1cyclictest0-21swapper/320:11:073
2177760991715,1cyclictest0-21swapper/319:20:023
2177760991714,1cyclictest0-21swapper/321:00:123
2177760991714,1cyclictest0-21swapper/320:04:253
2177760991714,1cyclictest0-21swapper/320:04:243
217776099171,13cyclictest2611527-21taskset00:08:123
217776099171,13cyclictest2472254-21taskset22:38:033
217776099171,13cyclictest2425183-21taskset22:05:553
217776099171,13cyclictest2411414-21taskset22:00:063
217776099171,13cyclictest2382047-21taskset21:40:173
217776099171,13cyclictest2192598-21taskset19:19:203
217776099171,12cyclictest2574158-21taskset23:45:143
217776099171,12cyclictest2494620-21taskset22:50:413
217776099171,12cyclictest2463882-21taskset22:31:123
217776099171,12cyclictest2295528-21turbostat20:40:013
217776099171,12cyclictest2256727-21taskset20:06:163
217776099170,13cyclictest2388621-21taskset21:45:133
21775212170,2sleep30-21swapper/319:08:473
25966912160,4sleep0222-21plymouthd23:59:590
217776099161,12cyclictest2532933-21taskset23:15:273
217776099161,12cyclictest2517787-21taskset23:05:333
22826982151,4sleep22282832-21latency_hist20:30:012
26278872140,1sleep00-21swapper/000:20:040
25862002140,10sleep02586771-21sed23:50:210
25799292140,2sleep20-21swapper/223:46:062
24939992141,9sleep22494039-21ntp_states22:50:252
23806962141,9sleep12380393-21sendmail-msp21:40:121
22705852141,9sleep02271137-21grep20:20:170
26493852130,10sleep22649391-21ssh00:31:052
25967062131,4sleep12596740-21munin-run00:00:011
25663232131,9sleep02566447-21grep23:40:150
24649802131,9sleep02464986-21ssh22:34:320
23556962131,9sleep12355700-21ssh21:20:361
25970252121,8sleep02596771-21sendmail-msp00:00:080
24731952121,8sleep12473199-21ssh22:40:061
24463202120,4sleep02447408-21memory22:20:200
24390592120,9sleep02439714-21cat22:15:190
24065652121,7sleep12408305-21grep21:55:201
23627842121,4sleep12362835-21ntp_states21:25:241
23154872120,8sleep02316422-21irqstats20:55:160
22150742120,9sleep12216957-21cut19:35:201
21919312120,9sleep02192045-21grep19:15:260
26496952110,2sleep0222-21plymouthd00:31:550
26409412111,7sleep22640987-21ntpq00:25:232
25799882110,7sleep02579994-21ssh23:46:150
25436842110,8sleep22544469-21cat23:25:172
25177752110,8sleep12517779-21ssh23:05:311
25110262110,9sleep00-21swapper/023:03:310
24794662110,8sleep02479472-21ssh22:41:370
24659022110,8sleep02466457-21/usr/sbin/munin22:35:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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