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2026-04-22 - 09:32
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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 Wed Apr 22, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2205012420,12sleep014-21ksoftirqd/000:27:240
3947060993027,1cyclictest0-21swapper/300:05:213
3947060992927,1cyclictest0-21swapper/321:40:023
427812260,3sleep2421rcuc/222:35:012
3947060992623,1cyclictest0-21swapper/323:35:193
3947060992623,1cyclictest0-21swapper/320:40:003
3947060992623,1cyclictest0-21swapper/300:00:243
394706099250,21cyclictest135867-21sleep23:35:013
3947060992421,1cyclictest0-21swapper/321:25:183
3947060992421,1cyclictest0-21swapper/300:00:013
40141102231,10sleep04014142-21/usr/sbin/munin20:00:130
3947060992320,1cyclictest0-21swapper/323:05:183
3947060992319,1cyclictest0-21swapper/322:50:003
3947060992219,1cyclictest0-21swapper/320:20:013
3947060992219,1cyclictest0-21swapper/320:05:283
3947060992018,1cyclictest0-21swapper/321:45:003
3947060992017,1cyclictest0-21swapper/323:20:003
394706099201,15cyclictest17958-21taskset22:15:403
394706099201,15cyclictest151107-21taskset23:44:013
40151352190,1sleep20-21swapper/220:00:172
394706099193,12cyclictest3987928-21turbostat19:40:013
3947060991917,1cyclictest0-21swapper/300:20:243
3947060991916,1cyclictest0-21swapper/322:55:183
3947060991916,1cyclictest0-21swapper/300:30:013
394706099191,14cyclictest73541-21taskset22:54:373
394706099191,14cyclictest4188804-21taskset22:01:373
394706099191,14cyclictest3953405-21taskset19:14:443
394706099191,13cyclictest151456-21sleep23:49:553
394706099188,6cyclictest39748522sleep319:27:523
3947060991815,1cyclictest0-21swapper/319:15:183
3947060991814,1cyclictest0-21swapper/323:28:243
394706099181,14cyclictest4126272-21taskset21:21:003
394706099181,14cyclictest112799-21taskset23:20:043
394706099181,13cyclictest4172294-21taskset21:50:233
394706099181,13cyclictest4118871-21chrt21:17:083
394706099181,13cyclictest4104031-21chrt21:06:283
394706099181,13cyclictest3964539-21taskset19:20:173
394706099181,13cyclictest204768-21taskset00:16:533
394706099181,13cyclictest165487-21taskset23:50:503
394706099181,13cyclictest10137-21taskset22:10:323
9829621712,3sleep298780-21kthreadcore23:10:182
394706099176,8cyclictest19404-21sleep22:24:563
3947060991715,1cyclictest0-21swapper/322:25:393
3947060991714,1cyclictest0-21swapper/322:40:203
394706099171,13cyclictest88304-21taskset23:02:033
394706099171,13cyclictest88304-21taskset23:02:033
394706099171,13cyclictest4180738-21taskset21:55:483
394706099171,13cyclictest4084636-21taskset20:52:063
394706099171,13cyclictest4058312-21taskset20:30:253
394706099171,13cyclictest4050840-21taskset20:25:193
394706099171,13cyclictest4000577-21taskset19:46:523
394706099171,13cyclictest235659-21taskset00:36:143
394706099171,13cyclictest103338-21taskset23:10:383
394706099171,12cyclictest41105-21taskset22:30:293
394706099171,12cyclictest4104626-21taskset21:10:093
394706099171,12cyclictest4090708-21taskset20:55:263
394706099171,12cyclictest4040117-21taskset20:20:153
394706099171,12cyclictest4014093-21taskset20:00:023
394706099171,12cyclictest3988184-21taskset19:40:053
394706099171,12cyclictest2419-21taskset22:05:503
3947060991613,1cyclictest0-21swapper/322:35:173
394706099161,12cyclictest4159130-21taskset21:45:063
394706099161,12cyclictest4142186-21taskset21:31:543
394706099161,12cyclictest4097475-21taskset21:00:273
394706099161,12cyclictest4078048-21taskset20:45:283
394706099161,12cyclictest4065781-21taskset20:40:043
394706099161,12cyclictest4032328-21taskset20:10:243
394706099161,12cyclictest4013737-21taskset19:58:573
394706099161,12cyclictest4006968-21taskset19:50:403
394706099161,12cyclictest3975284-21taskset19:30:073
394706099161,12cyclictest221751-21taskset00:30:113
394706099161,12cyclictest196638-21taskset00:10:593
416952151,10sleep141699-21ssh22:32:151
41509852141,10sleep21-21systemd21:40:002
40464202140,3sleep0222-21plymouthd20:25:130
41818882131,2sleep10-21swapper/121:59:161
39843532131,9sleep13986186-21cut19:35:191
129998130,9rtkit-daemon4189855-21ssh22:04:480
129998130,5rtkit-daemon4133404-21ntpq21:25:231
129998130,4rtkit-daemon3953694-21munin-node21:14:191
41674262120,8sleep04168125-21cut21:50:180
39748692121,4sleep03974870-21sshd-session19:28:040
2248232121,8sleep1226591-21kthreadcore00:30:181
1509802121,8sleep1150984-21ssh23:43:401
129998120,8rtkit-daemon25100-21ld22:20:261
1158592120,3sleep2117651-21kthreadcore23:20:202
1142912120,9sleep1115858-21tr23:20:181
969452110,3sleep1222-21plymouthd23:09:521
504082111,7sleep050427-21latency_hist22:40:010
40465782111,7sleep24046726-21expr20:25:152
40075972110,2sleep20-21swapper/219:55:052
39468282110,2sleep30-21swapper/319:09:553
1986632110,8sleep1198341-21/usr/sbin/munin00:15:161
1907432111,7sleep2190540-21/usr/sbin/munin00:10:152
1380172110,9sleep2139665-21cut23:35:192
129998110,7rtkit-daemon364-21systemd-udevd20:15:332
129998110,3rtkit-daemon222-21plymouthd23:43:372
129998110,2rtkit-daemon222-21plymouthd21:45:382
105562116,3sleep2431ktimers/222:11:452
652112100,1sleep10-21swapper/122:47:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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