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2026-07-23 - 08:45
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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 Thu Jul 23, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3274281993228,1cyclictest0-21swapper/322:40:143
3274281992421,1cyclictest0-21swapper/300:20:153
3274281992319,2cyclictest0-21swapper/320:35:143
327428199221,15cyclictest3347302-21sleep20:09:563
36010862211,9sleep23601090-21ssh23:05:072
3274281992119,1cyclictest0-21swapper/323:00:173
3274281992118,1cyclictest0-21swapper/322:50:213
3274281992118,1cyclictest0-21swapper/322:25:273
3274281992118,1cyclictest0-21swapper/322:00:163
3274281992118,1cyclictest0-21swapper/320:20:163
3274281992118,1cyclictest0-21swapper/320:00:243
327428199211,16cyclictest3327715-21taskset19:47:553
327428199211,14cyclictest3655794-21taskset23:39:553
327428199202,14cyclictest3423765-21taskset21:00:223
327428199202,14cyclictest3321430-21taskset19:44:293
3274281992018,0cyclictest0-21swapper/323:20:203
3274281992016,1cyclictest0-21swapper/319:20:133
327428199201,15cyclictest3547805-21taskset22:20:493
327428199201,14cyclictest3509894-21turbostat22:00:013
327428199201,14cyclictest3484080-21chrt21:40:243
3274281991917,1cyclictest0-21swapper/319:40:013
3274281991917,1cyclictest0-21swapper/319:40:003
3274281991916,1cyclictest0-21swapper/321:20:113
3274281991916,1cyclictest0-21swapper/321:14:103
3274281991916,1cyclictest0-21swapper/300:39:223
3274281991916,1cyclictest0-21swapper/300:15:153
3274281991916,1cyclictest0-21swapper/300:04:413
327428199191,14cyclictest3532272-21taskset22:11:223
327428199191,14cyclictest3523491-21chrt22:05:223
327428199191,14cyclictest3392637-21taskset20:40:103
327428199191,14cyclictest3334117-21taskset19:52:153
327428199191,14cyclictest3298375-21taskset19:25:173
327428199191,13cyclictest3687256-21taskset23:59:563
327428199191,13cyclictest3664108-21chrt23:45:123
327428199191,13cyclictest3411354-21taskset20:50:373
37009252181,5sleep03700966-21ntpq00:05:240
35163932181,10sleep23516399-21ssh22:00:482
327428199182,12cyclictest3359816-21taskset20:10:593
327428199182,12cyclictest3274452-21taskset19:10:093
3274281991815,1cyclictest0-21swapper/323:50:133
3274281991815,1cyclictest0-21swapper/322:36:223
3274281991815,1cyclictest0-21swapper/321:25:193
3274281991815,1cyclictest0-21swapper/320:55:173
3274281991815,1cyclictest0-21swapper/320:48:143
3274281991815,1cyclictest0-21swapper/320:15:223
3274281991815,1cyclictest0-21swapper/300:25:103
327428199181,13cyclictest3647839-21taskset23:34:353
327428199181,13cyclictest3501962-21taskset21:54:513
327428199181,13cyclictest3492627-21taskset21:45:493
327428199181,13cyclictest3439248-21taskset21:15:103
327428199178,7cyclictest33733422sleep320:25:033
3274281991714,1cyclictest0-21swapper/319:35:013
3274281991713,1cyclictest0-21swapper/323:40:183
327428199171,13cyclictest3606567-21chrt23:05:233
327428199171,13cyclictest3591663-21taskset22:56:413
327428199171,13cyclictest3576780-21taskset22:49:073
327428199171,12cyclictest3695610-21taskset00:05:093
327428199171,12cyclictest3535333-21taskset22:15:163
327428199170,14cyclictest3622987-21taskset23:16:023
327428199170,13cyclictest3472285-21chrt21:35:183
36763252160,5sleep03677083-21missed_timers23:50:200
36532272160,6sleep0151ktimers/023:35:200
327428199166,7cyclictest32889532sleep319:16:123
3274281991612,1cyclictest0-21swapper/323:25:133
3274281991612,1cyclictest0-21swapper/323:10:223
327428199161,12cyclictest3735073-21taskset00:30:513
327428199161,12cyclictest3703459-21taskset00:10:023
327428199161,12cyclictest3557519-21taskset22:30:153
327428199161,12cyclictest3468941-21taskset21:30:343
327428199161,12cyclictest3468941-21taskset21:30:333
327428199161,12cyclictest3424922-21taskset21:05:073
327428199161,11cyclictest3339896-21taskset19:55:243
327428199157,6cyclictest33856842sleep320:32:023
37440232141,2sleep20-21swapper/200:38:542
36656822140,6sleep03667256-21cut23:45:190
35333682141,9sleep23533374-21ssh22:14:272
36310512130,4sleep23631057-21ssh23:21:282
34181222130,6sleep03418316-21latency_hist21:00:010
32739112130,2sleep30-21swapper/319:07:073
36555222120,8sleep23655528-21ssh23:39:152
35601442120,9sleep03560146-21ssh22:36:500
35562612120,9sleep13556265-21ssh22:27:251
35333022121,8sleep0222-21plymouthd22:14:170
34849752121,8sleep13484981-21ssh21:41:271
33534372127,3sleep2431ktimers/220:06:382
33298892120,1sleep10-21swapper/119:50:161
33278772120,8sleep03327904-21/usr/sbin/munin19:50:000
37134922111,6sleep13713502-21sh00:20:111
36625142111,7sleep13662520-21ssh23:41:311
36170852111,7sleep13617188-21fschecks_time23:15:161
35690732110,8sleep23569079-21ssh22:44:302
35037452110,8sleep23504849-21cat21:55:202
34615052111,2sleep0222-21plymouthd21:26:580
33744772111,7sleep23375523-21cut20:25:182
33733902112,5sleep13373389-21apt-get20:25:131
33405732111,3sleep2222-21plymouthd19:57:412
32682382111,7sleep03268437-21hddtemp_smartct19:05:140
37264812101,5sleep23726524-21ntpq00:25:232
36931272100,7sleep23693147-21ntpq00:00:242
36701892100,1sleep20-21swapper/223:46:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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