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2026-04-03 - 07:21
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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 Fri Apr 03, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3844073993229,1cyclictest0-21swapper/323:15:003
3844073993128,1cyclictest0-21swapper/319:55:003
3844073992623,1cyclictest0-21swapper/300:25:163
3844073992623,1cyclictest0-21swapper/300:25:163
3844073992421,1cyclictest0-21swapper/323:50:003
3844073992421,1cyclictest0-21swapper/322:50:053
3844073992421,1cyclictest0-21swapper/300:40:003
3844073992320,1cyclictest0-21swapper/320:35:253
3844073992219,1cyclictest0-21swapper/322:45:003
3844073992219,1cyclictest0-21swapper/300:00:013
384407399212,14cyclictest3999625-21taskset21:08:083
3844073992118,1cyclictest0-21swapper/323:05:153
3844073992118,1cyclictest0-21swapper/322:10:003
3844073992018,1cyclictest0-21swapper/322:45:013
384407399201,15cyclictest3992577-21taskset21:00:233
384407399201,14cyclictest77063-21chrt00:05:133
384407399201,14cyclictest3922014-21taskset20:05:233
384407399201,13cyclictest3929352-21taskset20:14:563
38973512190,16sleep03897523-21cat19:50:000
3844073991917,1cyclictest0-21swapper/321:30:153
3844073991916,1cyclictest0-21swapper/322:00:163
384407399191,14cyclictest87333-21taskset00:10:193
384407399191,14cyclictest4176497-21taskset23:01:223
384407399191,14cyclictest4169691-21taskset22:59:143
384407399191,14cyclictest4123222-21taskset22:29:023
384407399191,14cyclictest4005210-21taskset21:10:213
384407399191,14cyclictest3979675-21taskset20:50:213
384407399191,14cyclictest3941898-21taskset20:21:053
384407399191,14cyclictest100256-21chrt00:20:133
40012362181,7sleep04001574-21kthreadcore21:10:180
3844073991815,1cyclictest0-21swapper/321:55:173
3844073991815,1cyclictest0-21swapper/321:45:143
3844073991815,1cyclictest0-21swapper/320:15:193
3844073991815,1cyclictest0-21swapper/319:20:013
3844073991815,1cyclictest0-21swapper/319:20:003
3844073991814,1cyclictest0-21swapper/323:50:253
384407399181,14cyclictest30070-21taskset23:34:303
384407399181,13cyclictest98434-21taskset00:15:433
384407399181,13cyclictest75204-21taskset00:00:373
384407399181,13cyclictest43893-21taskset23:40:283
384407399181,13cyclictest4114946-21taskset22:22:183
384407399181,13cyclictest4029419-21taskset21:26:093
384407399181,13cyclictest3883848-21taskset19:35:233
384407399178,6cyclictest3980621-21sleep20:59:543
3844073991714,1cyclictest0-21swapper/321:40:213
3844073991714,1cyclictest0-21swapper/300:30:183
3844073991713,1cyclictest0-21swapper/319:55:173
384407399171,13cyclictest4106959-21taskset22:16:443
384407399171,13cyclictest4099209-21taskset22:11:393
384407399171,13cyclictest4068361-21taskset21:51:433
384407399171,13cyclictest4045964-21taskset21:39:153
384407399171,13cyclictest3967469-21taskset20:41:023
384407399171,13cyclictest14798-21taskset23:24:593
384407399171,12cyclictest4193453-21taskset23:15:063
384407399171,12cyclictest3897026-21taskset19:45:503
384407399171,12cyclictest3871058-21taskset19:25:263
384407399170,13cyclictest4139000-21turbostat22:39:593
384407399169,4cyclictest38441972sleep319:10:103
3844073991613,1cyclictest0-21swapper/323:35:183
3844073991613,1cyclictest0-21swapper/320:45:213
384407399161,12cyclictest4129980-21taskset22:31:113
384407399161,12cyclictest4021599-21taskset21:21:003
384407399161,12cyclictest4021599-21taskset21:20:593
384407399161,12cyclictest3945164-21taskset20:25:193
384407399161,12cyclictest3877914-21taskset19:31:543
384407399161,12cyclictest3877914-21taskset19:31:543
384407399161,12cyclictest21264-21taskset23:26:093
384407399161,11cyclictest3948886-21chrt20:30:113
384407399160,12cyclictest3910707-21taskset20:00:133
39357672151,10sleep13935784-21latency_hist20:20:001
384407399150,12cyclictest4013798-21chrt21:15:463
384407399150,12cyclictest3886292-21taskset19:40:163
129998150,8rtkit-daemon130102-21ssh00:37:531
129998150,5rtkit-daemon3954078-21ntpq20:30:222
129998150,10rtkit-daemon739-21wpa_supplicant21:25:110
39412572141,9sleep13941299-21ntpq20:20:211
38435982140,2sleep30-21swapper/319:06:313
129998140,10rtkit-daemon91091-21ssh00:11:540
616232130,10sleep161814-21grep23:55:131
41687772130,4sleep0222-21plymouthd22:56:270
40857102131,4sleep14086593-21cut22:05:161
40615392130,10sleep24061545-21ssh21:49:212
40535192132,3sleep0222-21plymouthd21:43:390
369862130,10sleep136992-21ssh23:37:091
129998130,9rtkit-daemon703-21mta-sts-daemon21:35:040
129998130,4rtkit-daemon4107536-21ssh22:18:261
40912532120,9sleep24091255-21ssh22:05:532
40535062121,8sleep24053510-21ssh21:43:372
39741722121,8sleep23974332-21latency_hist20:50:002
39182222120,9sleep23919631-21cut20:05:192
38455912120,8sleep13846603-21cut19:10:161
295242120,9sleep229530-21ssh23:32:542
129998120,8rtkit-daemon68355-21ssh23:58:350
129998120,7rtkit-daemon115933-21grep00:30:171
129998120,4rtkit-daemon222-21plymouthd22:24:041
129998120,4rtkit-daemon222-21plymouthd19:55:480
847932110,8sleep284953-21diskstats00:10:152
809382110,3sleep1321rcuc/100:05:191
755012110,8sleep175505-21ssh00:01:281
532012110,4sleep153207-21ssh23:49:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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