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2026-04-26 - 04:03
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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
Characteristics of the 792 highest latencies:
System rackeslot2.osadl.org (updated Sun Apr 26, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
358791621630,2sleep30-21swapper/320:35:013
383269021010,2sleep30-21swapper/323:20:423
3478911992616,6cyclictest3809460-21kthreadcore23:05:430
3478913992522,1cyclictest0-21swapper/221:55:002
3478912992520,3cyclictest3774956-21apt-get22:45:031
3478913992421,1cyclictest0-21swapper/223:29:062
3478913992421,1cyclictest0-21swapper/223:29:062
3478913992421,1cyclictest0-21swapper/221:15:012
3478911992413,6cyclictest0-21swapper/000:05:010
347891199238,7cyclictest0-21swapper/019:35:370
3478911992314,5cyclictest3827634-1atopacctd23:00:360
347891199229,6cyclictest0-21swapper/022:22:590
3478911992219,2cyclictest3669852-21grep21:35:020
3478911992211,4cyclictest3841201-21grep23:25:450
3478911992211,4cyclictest3841201-21grep23:25:440
3478911992211,2cyclictest3757563-21cut22:30:440
37440022210,2sleep20-21swapper/222:22:212
3478912992118,2cyclictest3881104-21cron23:55:001
3478912992118,2cyclictest3692227-21idleruntime-cro21:50:001
3478912992118,2cyclictest3499963-21cron19:25:001
347891199218,6cyclictest0-21swapper/021:25:360
347891199218,2cyclictest0-21swapper/021:18:260
3478911992111,2cyclictest3707500-21munin-run22:00:010
383433398200,2rtkit-daemon3851702-21mta-sts-daemon23:19:470
3478913992017,1cyclictest0-21swapper/220:15:002
3478913992017,1cyclictest0-21swapper/220:15:002
3478913992016,1cyclictest0-21swapper/222:45:022
3478912992018,1cyclictest3677200-21cron21:40:001
3478912992018,1cyclictest3677200-21cron21:40:001
3478912992016,3cyclictest0-21swapper/120:25:001
3478912992015,3cyclictest0-21swapper/121:15:011
3478912992012,3cyclictest0-21swapper/122:00:451
347891199208,2cyclictest0-21swapper/021:40:530
3478911992017,2cyclictest1-21systemd00:30:020
3478911992016,3cyclictest3827634-1atopacctd19:55:010
3478911992016,2cyclictest1326-21systemd-logind19:35:020
3478913991916,1cyclictest0-21swapper/219:15:002
347891299194,9cyclictest3923811-21kthreadcore00:20:441
3478912991916,2cyclictest3485693-21kthreadcore19:15:011
3478912991916,2cyclictest0-21swapper/100:00:011
3478912991915,3cyclictest3578540-21kthreadcore20:25:421
3478912991915,2cyclictest0-21swapper/122:55:021
3478912991912,2cyclictest134050irq/121-eno121:55:441
347891199196,6cyclictest0-21swapper/021:37:540
347891199196,6cyclictest0-21swapper/021:37:540
3478911991916,2cyclictest3575803-21kworker/u16:3-rpciod22:45:030
3478911991916,2cyclictest1290-21dbus-daemon23:15:010
3478911991916,2cyclictest1290-21dbus-daemon20:10:010
3478911991915,3cyclictest3790364-21apt-key22:55:010
3478913991816,1cyclictest0-21swapper/223:50:012
3478913991816,1cyclictest0-21swapper/222:10:012
3478913991815,1cyclictest0-21swapper/223:05:412
3478913991815,1cyclictest0-21swapper/221:15:422
3478913991815,1cyclictest0-21swapper/221:00:002
3478913991810,3cyclictest0-21swapper/219:25:362
347891299182,5cyclictest3816332-21cat23:10:411
3478912991815,2cyclictest3828408-21systemd-run23:20:011
3478912991815,2cyclictest0-21swapper/121:25:011
3478912991814,3cyclictest0-21swapper/122:35:011
3478912991814,3cyclictest0-21swapper/121:20:001
3478912991814,2cyclictest0-21swapper/119:45:001
3478912991813,3cyclictest0-21swapper/100:40:001
3478912991812,2cyclictest134050irq/121-eno122:10:011
3478912991811,3cyclictest134050irq/121-eno120:40:351
3478912991811,2cyclictest3631537-21diskmemload22:14:251
347891299181,11cyclictest3938197-21cut00:30:441
3478911991815,2cyclictest3500180-21systemd-run19:25:010
3478911991811,6cyclictest3710102-21kthreadcore22:00:430
3478911991811,5cyclictest3766803-21runrttasks22:38:200
2649091181,2phc2sys0-21swapper/323:54:473
2649091180,2phc2sys0-21swapper/321:26:373
2649091180,1phc2sys0-21swapper/322:34:543
3478913991715,1cyclictest0-21swapper/223:15:002
3478913991714,1cyclictest0-21swapper/223:55:422
3478913991714,1cyclictest0-21swapper/221:30:472
3478913991714,1cyclictest0-21swapper/200:25:372
347891299176,6cyclictest3849021-21ssh23:30:471
3478912991714,2cyclictest3813358-21latency_hist23:10:021
3478912991714,2cyclictest3613798-21fschecks_time20:55:381
3478912991714,2cyclictest3538777-21grep19:55:401
3478912991713,3cyclictest3547048-21kthreadcore20:00:451
3478912991713,3cyclictest3515723-21kthreadcore19:35:431
3478912991713,3cyclictest3500673-21cpuspeed_turbos19:25:381
3478912991710,1cyclictest134050irq/121-eno100:19:441
347891199178,7cyclictest3779871-21tr22:45:430
3478911991714,2cyclictest3737500-21latency_hist22:20:010
3478911991713,2cyclictest3619310-21systemd-run21:00:020
347891199171,2cyclictest3582220-21expr20:30:380
3478911991711,5cyclictest3829987-21kthreadcore23:20:410
347891199170,16cyclictest0-21swapper/020:10:390
347891199170,16cyclictest0-21swapper/020:10:390
2649191170,2ptp4l0-21swapper/323:10:423
383433398160,7rtkit-daemon3751621-21rm22:27:420
35680512160,1sleep03568054-21cut20:15:460
347891399161,9cyclictest0-21swapper/223:40:012
3478913991614,1cyclictest0-21swapper/223:05:022
3478913991614,1cyclictest0-21swapper/200:05:392
3478913991613,1cyclictest0-21swapper/223:55:012
3478913991613,1cyclictest0-21swapper/223:40:412
3478913991613,1cyclictest0-21swapper/223:00:012
3478913991613,1cyclictest0-21swapper/222:35:362
3478913991613,1cyclictest0-21swapper/221:55:402
3478913991613,1cyclictest0-21swapper/221:40:402
3478913991613,1cyclictest0-21swapper/221:35:492
3478913991613,1cyclictest0-21swapper/221:35:492
3478913991613,1cyclictest0-21swapper/220:45:412
3478913991613,1cyclictest0-21swapper/200:40:012
3478913991613,1cyclictest0-21swapper/200:24:442
3478913991613,1cyclictest0-21swapper/200:10:492
3478913991613,1cyclictest0-21swapper/200:00:422
3478913991611,2cyclictest0-21swapper/223:20:342
3478913991611,1cyclictest0-21swapper/222:25:352
347891299168,2cyclictest134050irq/121-eno121:50:181
347891299167,2cyclictest134050irq/121-eno123:45:431
347891299165,5cyclictest11systemd22:25:011
3478912991614,1cyclictest1996-21runrttasks22:29:241
3478912991613,2cyclictest3904557-21cstates00:10:371
3478912991613,2cyclictest3893744-21kthreadcore00:00:441
3478912991613,2cyclictest3767419-21rm22:40:011
3478912991613,2cyclictest3628554-21sort21:05:421
3478912991613,2cyclictest3607870-21grep20:50:401
3478912991613,2cyclictest3563762-21irqcore20:15:401
3478912991613,2cyclictest3507665-21irqrtprio19:30:421
3478912991613,2cyclictest3488425-21cut19:15:391
3478912991613,2cyclictest1296-21polkitd20:50:001
3478912991613,2cyclictest0-21swapper/119:10:011
3478912991611,3cyclictest0-21swapper/123:30:001
3478912991611,3cyclictest0-21swapper/123:30:001
3478912991611,1cyclictest134050irq/121-eno123:01:051
347891199169,5cyclictest3650443-21kthreadcore21:20:420
347891199168,6cyclictest3943048-21kthreadcore00:35:430
3478911991613,2cyclictest3939435-21mailstats00:30:480
3478911991613,2cyclictest3905186-21cut00:10:410
3478911991613,2cyclictest3903817-21sh00:10:010
3478911991613,2cyclictest3851703-21mta-sts-daemon00:20:590
3478911991613,2cyclictest3793458-21kthreadcore22:55:420
3478911991613,2cyclictest3594277-21latency_hist20:40:010
3478911991613,2cyclictest3544065-21sh20:00:010
3478911991613,2cyclictest3525016-21basename19:45:000
3478911991613,2cyclictest3485848-21kthreadcore19:15:010
3478911991612,3cyclictest3835912-21kworker/u16:0+nfsiod23:31:440
2649091160,2phc2sys0-21swapper/323:36:343
2649091160,1phc2sys0-21swapper/323:16:503
347891399151,7cyclictest0-21swapper/219:15:362
3478913991513,1cyclictest0-21swapper/200:35:012
3478913991512,2cyclictest0-21swapper/222:10:342
3478913991512,1cyclictest0-21swapper/223:35:002
3478913991512,1cyclictest0-21swapper/222:50:482
3478913991512,1cyclictest0-21swapper/222:45:382
3478913991512,1cyclictest0-21swapper/221:49:222
3478913991512,1cyclictest0-21swapper/221:22:532
3478913991512,1cyclictest0-21swapper/220:30:002
3478913991512,1cyclictest0-21swapper/219:50:422
3478913991512,1cyclictest0-21swapper/200:20:012
3478913991511,2cyclictest0-21swapper/219:10:022
347891299157,4cyclictest134050irq/121-eno122:55:361
347891299157,1cyclictest134050irq/121-eno119:50:361
347891299154,6cyclictest3777674-21kthreadcore22:45:421
347891299152,8cyclictest3631537-21diskmemload21:25:041
3478912991512,2cyclictest3851705-21mta-sts-daemon00:29:331
3478912991512,2cyclictest3833773-21pmu-power23:20:451
3478912991512,2cyclictest3667964-21mailstats21:30:491
3478912991512,2cyclictest3526261-21irqcore19:45:411
3478912991512,2cyclictest134050irq/121-eno100:06:501
3478912991512,2cyclictest1296-21polkitd20:40:001
3478912991512,2cyclictest1296-21polkitd20:35:001
3478912991511,3cyclictest3621335-21kthreadcore21:00:441
347891299150,5cyclictest3677985-21cat21:40:361
3478911991513,1cyclictest3851702-21mta-sts-daemon22:08:320
3478911991512,2cyclictest3916932-21mailstats00:15:460
3478911991512,2cyclictest3851703-21mta-sts-daemon20:20:470
3478911991512,2cyclictest3725793-21kthreadcore22:10:430
3478911991512,2cyclictest3687773-21kthreadcore21:45:430
3478911991512,2cyclictest3632850-21sh21:10:400
3478911991512,2cyclictest3602358-21kthreadcore20:45:420
3478911991512,2cyclictest3550048-21latency_hist20:05:000
3478911991512,2cyclictest3487182-21timerwakeupswit19:15:020
3478911991512,2cyclictest1326-21systemd-logind21:05:020
3478911991511,3cyclictest3881597-21/usr/sbin/munin23:55:420
3478911991511,3cyclictest3851704-21mta-sts-daemon23:44:130
3478911991511,1cyclictest3851702-21mta-sts-daemon23:45:260
3478911991510,4cyclictest3594485-21tail20:40:340
2649091150,6phc2sys0-21swapper/322:55:373
2649091150,2phc2sys0-21swapper/323:56:523
2649091150,2phc2sys0-21swapper/321:37:173
2649091150,2phc2sys0-21swapper/321:37:173
2649091150,2phc2sys0-21swapper/300:27:203
3478913991412,1cyclictest0-21swapper/219:40:392
3478913991412,1cyclictest0-21swapper/219:21:502
3478913991411,1cyclictest0-21swapper/222:00:432
3478913991411,1cyclictest0-21swapper/221:30:012
3478913991411,1cyclictest0-21swapper/221:00:492
3478913991411,1cyclictest0-21swapper/220:50:472
3478913991411,1cyclictest0-21swapper/220:25:022
3478913991411,1cyclictest0-21swapper/219:55:462
3478913991411,1cyclictest0-21swapper/219:35:382
3478913991410,2cyclictest0-21swapper/220:40:462
3478913991410,2cyclictest0-21swapper/220:30:372
347891299147,2cyclictest134050irq/121-eno122:15:381
347891299147,2cyclictest134050irq/121-eno120:05:361
347891299143,6cyclictest3556699-21aten2.4-expect20:10:351
347891299143,6cyclictest3556699-21aten2.4-expect20:10:351
347891299141,8cyclictest3862960-21tr23:40:441
3478912991411,2cyclictest3851702-21mta-sts-daemon23:37:551
347891199145,2cyclictest0-21swapper/021:50:120
347891199145,2cyclictest0-21swapper/021:10:020
3478911991411,2cyclictest3877550-21kthreadcore23:50:420
3478911991411,2cyclictest3852259-21gltestperf23:35:380
3478911991411,2cyclictest3608129-21irqrtprio20:50:410
3478911991411,2cyclictest3576305-21gltestperf20:25:380
3478911991411,2cyclictest3503603-21kthreadcore19:25:430
2649091141,3phc2sys0-21swapper/322:35:353
2649091140,2phc2sys0-21swapper/321:30:583
2649091140,1phc2sys0-21swapper/321:56:243
2649091140,1phc2sys0-21swapper/321:24:253
2649091140,1phc2sys0-21swapper/320:57:103
2649091140,1phc2sys0-21swapper/320:17:433
35500272130,3sleep30-21swapper/320:05:003
347891399139,2cyclictest0-21swapper/222:15:042
347891399139,2cyclictest0-21swapper/220:15:422
347891399139,2cyclictest0-21swapper/219:45:422
3478913991311,1cyclictest0-21swapper/220:00:502
3478913991310,1cyclictest0-21swapper/223:15:342
3478913991310,1cyclictest0-21swapper/222:30:432
3478913991310,1cyclictest0-21swapper/220:05:422
347891199130,5cyclictest3525855-21cat19:45:370
2649091131,6phc2sys0-21swapper/300:20:373
2649091131,3phc2sys0-21swapper/321:09:273
2649091130,5phc2sys0-21swapper/322:44:253
2649091130,2phc2sys0-21swapper/323:25:133
2649091130,2phc2sys0-21swapper/323:25:133
2649091130,2phc2sys0-21swapper/322:13:263
2649091130,2phc2sys0-21swapper/322:00:203
2649091130,2phc2sys0-21swapper/321:54:183
2649091130,2phc2sys0-21swapper/300:36:563
3478913991210,1cyclictest0-21swapper/221:05:422
3478913991210,1cyclictest0-21swapper/220:35:402
3478913991210,1cyclictest0-21swapper/219:30:372
2649091121,5phc2sys0-21swapper/319:40:353
2649091121,4phc2sys0-21swapper/323:44:073
2649091120,7phc2sys0-21swapper/323:45:353
2649091120,4phc2sys0-21swapper/319:14:233
2649091120,2phc2sys0-21swapper/322:27:493
2649091120,2phc2sys0-21swapper/320:39:233
2649091120,2phc2sys0-21swapper/300:19:503
2649091120,2phc2sys0-21swapper/300:11:593
347891199117,2cyclictest0-21swapper/019:10:020
2649091114,1phc2sys0-21swapper/322:50:023
2649091112,2phc2sys0-21swapper/320:50:413
2649091111,8phc2sys0-21swapper/319:54:283
2649091111,2phc2sys0-21swapper/321:46:173
2649091111,2phc2sys0-21swapper/321:00:353
2649091110,5phc2sys0-21swapper/322:15:343
2649091110,2phc2sys0-21swapper/319:15:033
2649091110,2phc2sys0-21swapper/300:07:423
2649091110,1phc2sys0-21swapper/319:38:353
2649091110,1phc2sys0-21swapper/319:21:403
2649091103,3phc2sys0-21swapper/321:15:363
2649091102,2phc2sys0-21swapper/300:30:153
2649091101,2phc2sys0-21swapper/322:20:323
2649091101,2phc2sys0-21swapper/321:10:443
2649091101,2phc2sys0-21swapper/320:50:013
2649091101,2phc2sys0-21swapper/319:05:373
2649091100,4phc2sys0-21swapper/319:25:363
2649091100,2phc2sys0-21swapper/323:30:543
2649091100,2phc2sys0-21swapper/321:41:243
2649091100,2phc2sys0-21swapper/320:25:163
2649091100,2phc2sys0-21swapper/319:55:433
2649091100,2phc2sys0-21swapper/319:45:133
2649091100,2phc2sys0-21swapper/300:00:243
2649091100,1phc2sys0-21swapper/320:42:153
264909191,3phc2sys0-21swapper/320:10:493
264909191,3phc2sys0-21swapper/320:10:483
264909191,3phc2sys0-21swapper/319:35:013
264909190,2phc2sys0-21swapper/323:05:213
264909190,2phc2sys0-21swapper/323:00:373
264909190,2phc2sys0-21swapper/322:05:123
264909190,2phc2sys0-21swapper/320:24:553
264909190,2phc2sys0-21swapper/320:05:363
264909190,1phc2sys0-21swapper/322:54:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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