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2026-04-11 - 09:53
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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 Sat Apr 11, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
242789921040,3sleep02427896-21cron19:25:000
25877812530,3sleep12587730-21ssh21:25:171
2406367993229,1cyclictest0-21swapper/300:00:003
2406367992926,1cyclictest0-21swapper/322:10:013
2406367992725,1cyclictest0-21swapper/321:50:143
2406367992421,1cyclictest0-21swapper/323:15:013
2406367992420,1cyclictest0-21swapper/323:20:123
240636799231,18cyclictest2531380-21turbostat20:45:003
2406367992220,0cyclictest0-21swapper/323:50:213
2406367992219,1cyclictest0-21swapper/300:30:153
2406367992211,7cyclictest26488142sleep322:04:153
2406367992118,1cyclictest0-21swapper/322:55:133
2406367992118,1cyclictest0-21swapper/300:14:593
240636799210,12cyclictest28520422sleep300:15:153
2406367992018,1cyclictest0-21swapper/322:10:113
2406367992017,1cyclictest0-21swapper/322:47:373
2406367992017,1cyclictest0-21swapper/321:33:533
2406367992017,1cyclictest0-21swapper/321:00:013
2406367992017,1cyclictest0-21swapper/321:00:003
2406367992017,1cyclictest0-21swapper/320:30:013
2406367992010,7cyclictest24850742sleep320:05:223
2406367991917,1cyclictest0-21swapper/300:05:203
2406367991916,1cyclictest0-21swapper/323:45:403
2406367991916,1cyclictest0-21swapper/323:00:193
2406367991916,1cyclictest0-21swapper/322:41:413
2406367991916,1cyclictest0-21swapper/322:35:223
2406367991916,1cyclictest0-21swapper/322:30:563
2406367991916,1cyclictest0-21swapper/321:55:173
2406367991916,1cyclictest0-21swapper/321:25:173
2406367991916,1cyclictest0-21swapper/320:39:593
2406367991916,1cyclictest0-21swapper/319:51:083
2406367991916,1cyclictest0-21swapper/319:45:403
2406367991916,1cyclictest0-21swapper/319:32:213
2406367991916,1cyclictest0-21swapper/319:32:203
2406367991916,1cyclictest0-21swapper/300:20:123
240636799191,14cyclictest2826172-21taskset23:55:253
240636799191,14cyclictest2790973-21taskset23:35:163
240636799191,14cyclictest2586326-21taskset21:23:063
240636799191,13cyclictest2625681-21taskset21:49:563
240636799182,13cyclictest2802707-21taskset23:40:213
2406367991816,1cyclictest0-21swapper/320:35:023
2406367991815,1cyclictest0-21swapper/322:50:113
2406367991815,1cyclictest0-21swapper/322:25:243
2406367991815,1cyclictest0-21swapper/322:20:223
2406367991815,1cyclictest0-21swapper/321:40:163
2406367991815,1cyclictest0-21swapper/321:05:093
2406367991815,1cyclictest0-21swapper/320:50:203
2406367991815,1cyclictest0-21swapper/320:20:253
2406367991815,1cyclictest0-21swapper/319:25:223
2406367991814,1cyclictest0-21swapper/323:15:263
240636799181,13cyclictest2888248-21chrt00:35:213
240636799181,13cyclictest2602906-21taskset21:35:133
240636799181,13cyclictest2441105-21chrt19:35:143
240636799181,13cyclictest2406514-21taskset19:10:033
27032192170,10sleep22703225-21ssh22:38:542
2406367991715,1cyclictest0-21swapper/321:00:213
2406367991715,1cyclictest0-21swapper/320:45:213
2406367991715,1cyclictest0-21swapper/320:15:183
2406367991715,1cyclictest0-21swapper/319:20:183
2406367991714,1cyclictest0-21swapper/323:30:233
2406367991714,1cyclictest0-21swapper/323:25:193
2406367991714,1cyclictest0-21swapper/321:10:123
2406367991714,1cyclictest0-21swapper/321:10:113
2406367991714,1cyclictest0-21swapper/320:00:153
2406367991714,1cyclictest0-21swapper/319:45:003
2406367991714,1cyclictest0-21swapper/300:30:013
240636799171,13cyclictest2749115-21taskset23:06:413
240636799171,13cyclictest2671803-21taskset22:18:153
240636799171,12cyclictest2571703-21taskset21:15:043
240636799171,12cyclictest2421077-21taskset19:15:453
28562292161,11sleep02857002-21/usr/sbin/munin00:15:190
240636799161,12cyclictest2491811-21taskset20:10:253
240636799161,12cyclictest2466948-21taskset19:55:063
24178092151,10sleep12419632-21tr19:15:191
28362132141,9sleep10-21swapper/100:05:131
27959042141,10sleep12795908-21ssh23:36:481
27525482140,7sleep22754311-21kthreadcore23:10:192
2406367991412,1cyclictest0-21swapper/319:10:013
28507612130,9sleep22850767-21ssh00:12:532
27396132130,10sleep22735069-21/usr/sbin/munin23:00:202
25304352130,9sleep12530482-21ntp_states20:40:231
25110522131,4sleep12511099-21ntp_states20:25:231
25045072130,5sleep12504556-21ntpq20:20:231
129998130,9rtkit-daemon2828003-21ssh23:59:521
129998130,8rtkit-daemon2633475-21ssh21:54:562
27487412121,8sleep12748747-21ssh23:05:331
27481032121,8sleep22748148-21ntpq23:05:222
26487562123,6sleep134-21ksoftirqd/122:04:061
26187912121,8sleep02619689-21cut21:45:170
129998120,3rtkit-daemon222-21plymouthd22:12:570
129998120,3rtkit-daemon222-21plymouthd20:24:362
129998120,2rtkit-daemon222-21plymouthd22:09:570
28649952110,8sleep22865040-21uname00:20:232
27417722114,2sleep0151ktimers/023:02:500
27247132110,8sleep12724758-21collect222:50:211
26975692111,3sleep12699155-21cat22:35:171
26718942110,8sleep22671900-21ssh22:18:312
25239972111,7sleep22524024-21ntpq20:35:222
129998110,7rtkit-daemon2773158-21ssh23:23:331
129998110,7rtkit-daemon2717705-21ssh22:45:422
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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