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2026-07-30 - 12:21
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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 Thu Jul 30, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
343631523010,4sleep03415294-21kworker/u16:4-events_unbound22:00:200
32912142620,1sleep10-21swapper/120:20:181
3196784993532,1cyclictest0-21swapper/300:10:003
3196784993431,1cyclictest0-21swapper/319:50:013
3196784992825,1cyclictest0-21swapper/323:40:103
3196784992825,1cyclictest0-21swapper/319:40:013
3196784992724,1cyclictest0-21swapper/321:45:253
36261252260,3sleep13626105-21ntp_states00:00:291
3196784992623,1cyclictest0-21swapper/319:40:163
3196784992523,1cyclictest0-21swapper/323:20:013
3196784992421,1cyclictest0-21swapper/322:40:223
3196784992320,1cyclictest0-21swapper/322:40:003
3196784992320,1cyclictest0-21swapper/322:00:263
3196784992320,1cyclictest0-21swapper/321:40:163
3196784992118,1cyclictest0-21swapper/323:20:183
319678499211,15cyclictest3461227-21taskset22:15:263
319678499202,13cyclictest3652118-21taskset00:20:073
3196784992017,1cyclictest0-21swapper/323:05:173
319678499201,13cyclictest3518527-21chrt22:55:163
3196784991916,1cyclictest0-21swapper/323:50:133
3196784991916,1cyclictest0-21swapper/322:20:163
3196784991916,1cyclictest0-21swapper/321:20:113
3196784991916,1cyclictest0-21swapper/321:17:003
3196784991916,1cyclictest0-21swapper/320:40:213
3196784991916,1cyclictest0-21swapper/320:20:293
3196784991916,1cyclictest0-21swapper/320:15:133
3196784991916,1cyclictest0-21swapper/319:30:153
3196784991916,1cyclictest0-21swapper/300:10:193
319678499191,14cyclictest3453228-21taskset22:10:253
319678499191,14cyclictest3422508-21taskset21:51:453
319678499191,14cyclictest3351899-21taskset21:05:223
319678499191,14cyclictest3345631-21taskset21:00:253
319678499191,14cyclictest3281723-21taskset20:10:253
319678499191,14cyclictest3250546-21chrt19:50:133
3196784991815,1cyclictest0-21swapper/323:57:293
3196784991815,1cyclictest0-21swapper/323:35:003
3196784991815,1cyclictest0-21swapper/323:00:223
3196784991815,1cyclictest0-21swapper/322:32:173
3196784991815,1cyclictest0-21swapper/321:29:513
3196784991815,1cyclictest0-21swapper/321:12:453
3196784991815,1cyclictest0-21swapper/300:00:153
319678499181,13cyclictest3667875-21taskset00:30:143
319678499181,13cyclictest3651768-21taskset00:19:553
319678499181,13cyclictest3565711-21taskset23:25:073
319678499181,13cyclictest3445146-21taskset22:05:203
319678499181,13cyclictest3398765-21taskset21:36:213
319678499181,13cyclictest3333352-21taskset20:51:513
319678499181,13cyclictest3326868-21taskset20:45:333
319678499181,13cyclictest3302069-21taskset20:30:143
319678499181,13cyclictest3218017-21taskset19:23:033
319678499181,13cyclictest3202880-21taskset19:11:563
319678499181,12cyclictest3597158-21chrt23:45:113
319678499180,14cyclictest3340024-21turbostat21:00:003
33436392171,5sleep13340053-21sendmail-msp21:00:201
3196784991714,1cyclictest0-21swapper/319:25:173
3196784991714,1cyclictest0-21swapper/300:28:063
319678499171,13cyclictest3517702-21taskset22:53:483
319678499171,13cyclictest3517702-21taskset22:53:473
319678499171,13cyclictest3477503-21taskset22:26:093
319678499171,13cyclictest3431367-21taskset21:59:263
319678499171,13cyclictest3390744-21taskset21:30:563
319678499171,13cyclictest3205526-21taskset19:15:053
319678499171,12cyclictest3675780-21taskset00:35:113
319678499171,12cyclictest3542014-21taskset23:10:033
319678499171,12cyclictest3502801-21taskset22:45:093
319678499171,12cyclictest3308350-21taskset20:35:153
319678499171,12cyclictest3269795-21taskset20:05:083
319678499171,12cyclictest3269490-21taskset20:04:563
319678499171,12cyclictest3262690-21taskset19:55:383
33240162160,3sleep03325897-21cut20:45:190
3196784991613,1cyclictest0-21swapper/323:35:173
319678499161,12cyclictest3295530-21taskset20:25:133
35710462150,7sleep13571097-21ntp_states23:25:221
35009582140,10sleep13500964-21ssh22:40:431
34291442141,10sleep03429288-21/usr/sbin/munin21:55:190
33210972141,5sleep1222-21plymouthd20:45:121
36754662130,7sleep014-21ksoftirqd/000:35:010
36545392138,2sleep20-21swapper/200:20:192
35257092131,8sleep23525715-21ssh22:59:162
32429982131,9sleep13243076-21sendmail_mailst19:40:261
36273642121,8sleep23627370-21ssh00:02:352
35790152123,5sleep23579132-21basename23:30:252
34777192121,3sleep0222-21plymouthd22:26:430
34686312120,9sleep13468774-21awk22:20:231
33338852121,8sleep23333907-21apt-get20:55:122
31971552120,8sleep13197351-21hddtemp_smartct19:10:151
31965052120,1sleep20-21swapper/219:08:152
36771152110,8sleep23678000-21kthreadcore00:35:192
35735832110,3sleep13573624-21ssh23:30:111
35577212111,6sleep23557447-21sendmail-msp23:20:052
35262782111,7sleep23526034-21sendmail-msp23:00:092
34774872110,8sleep13477493-21ssh22:26:081
34372502112,6sleep23431655-21sendmail-msp22:00:232
33770402110,8sleep23376829-21/usr/sbin/munin21:25:142
32251112110,8sleep13225272-21cat19:30:151
32206832110,8sleep13222482-21grep19:25:181
36749832102,2sleep03674989-21ssh00:33:530
36364632101,6sleep23636473-21ssh00:10:132
36266382100,1sleep00-21swapper/000:00:370
35910222101,2sleep00-21swapper/023:40:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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