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2026-06-04 - 20:34
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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 Thu Jun 04, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35714692340,4sleep13571470-21cut09:39:411
34366942310,2sleep20-21swapper/207:55:022
3377571992513,8cyclictest3698988-21/usr/sbin/munin11:04:420
3377571992418,5cyclictest3827634-1atopacctd12:35:030
3377571992418,5cyclictest3518634-21/usr/sbin/munin09:00:000
3377572992320,2cyclictest3841841-21latency_hist12:35:021
3377571992317,5cyclictest3810869-21apt-key12:15:010
3377571992317,5cyclictest3697189-21cron11:00:000
3377571992317,5cyclictest3674643-21apt10:45:000
3377571992317,5cyclictest1-21systemd11:15:000
3377571992314,8cyclictest0-21swapper/009:35:010
337757199231,19cyclictest3833793-21munin-run12:30:000
3377571992311,8cyclictest3820965-21head12:24:400
337757199230,12cyclictest0-21swapper/008:24:370
337757199230,12cyclictest0-21swapper/008:24:370
337757199228,9cyclictest0-21swapper/009:54:390
3377571992217,4cyclictest3531360-21systemd-run09:10:000
337757199221,19cyclictest2840498-21systemd-journal08:00:000
337757199221,16cyclictest0-21swapper/011:05:250
3377572992118,2cyclictest3499917-21grep08:45:011
3377572992118,2cyclictest3486971-21sh08:35:011
3377572992115,2cyclictest134050irq/121-eno110:38:141
3377572992114,3cyclictest3761789-21kthreadcore11:44:441
337757199218,8cyclictest0-21swapper/011:55:000
3377571992116,4cyclictest3499645-21gpgconf08:45:010
3377571992115,5cyclictest3824565-21in:imuxsock07:10:010
3377571992115,5cyclictest3383870-21if_enp1s007:15:010
3377571992114,5cyclictest3841574-21apt-key12:35:010
3377571992110,7cyclictest3649217-21kthreadcore10:29:450
3377571992110,10cyclictest0-21swapper/011:29:440
36459362200,2sleep30-21swapper/310:28:343
337757299205,5cyclictest2840498-21systemd-journal11:55:011
337757299204,9cyclictest1290-21dbus-daemon10:45:001
3377572992018,1cyclictest0-21swapper/107:45:021
3377572992017,2cyclictest3824565-21in:imuxsock10:35:001
3377572992017,2cyclictest3561456-21ssh09:30:001
337757199208,8cyclictest0-21swapper/012:05:160
337757199208,7cyclictest0-21swapper/010:15:010
337757199208,7cyclictest0-21swapper/009:19:470
337757199207,8cyclictest0-21swapper/010:19:360
337757199207,7cyclictest0-21swapper/010:04:380
3377571992015,4cyclictest3745307-21head11:34:400
3377571992015,4cyclictest0-21swapper/009:15:000
3377571992015,4cyclictest0-21swapper/008:30:000
3377571992014,5cyclictest3601480-21cut09:59:400
3377571992014,4cyclictest3430442-21systemd-run07:50:020
3377571992012,7cyclictest1290-21dbus-daemon11:50:000
3377571992010,9cyclictest0-21swapper/009:24:450
337757199200,8cyclictest3387894-21irqrtprio07:19:420
337757199200,19cyclictest3492509-21gzip08:39:470
2649091200,2phc2sys0-21swapper/309:22:263
337757399195,7cyclictest0-21swapper/212:30:002
337757399194,9cyclictest0-21swapper/210:00:002
3377573991916,1cyclictest0-21swapper/209:29:362
3377572991916,2cyclictest3384429-21sh07:15:021
3377572991916,2cyclictest1-21systemd12:40:011
337757199197,7cyclictest0-21swapper/011:58:140
337757199197,7cyclictest0-21swapper/010:39:410
337757199196,11cyclictest3734092-21tr11:24:450
3377571991916,2cyclictest1296-21polkitd08:10:000
3377571991914,4cyclictest3824565-21in:imuxsock08:20:000
3377571991914,4cyclictest3461463-21idleruntime-cro08:15:000
3377571991913,5cyclictest3575890-21pmu-power09:39:480
3377571991913,5cyclictest3558691-21kthreadcore09:29:460
3377571991913,5cyclictest3436597-21latency_hist07:55:010
3377571991913,5cyclictest3419664-21kthreadcore07:44:450
3377571991913,4cyclictest3584303-21munin-plugin-st09:45:010
3377571991912,6cyclictest3834328-21sendmail-mta12:15:080
337757199191,13cyclictest0-21swapper/012:01:160
3377571991910,4cyclictest3764999-21smartctl11:44:490
337757199190,8cyclictest3448986-21munin-run08:04:590
383433398180,4rtkit-daemon3851702-21mta-sts-daemon11:17:420
3377573991811,5cyclictest3765488-21chrt11:45:002
3377572991815,2cyclictest3518594-21apt-key09:00:001
3377572991814,3cyclictest3834028-21grep12:30:021
3377572991811,3cyclictest3821383-21irqrtprio12:24:421
3377572991810,3cyclictest3696070-21kthreadcore10:59:451
337757199188,6cyclictest2852532-21ntpd10:08:520
337757199184,9cyclictest0-21swapper/010:24:390
337757199182,5cyclictest3656244-21kthreadcore10:34:440
3377571991812,5cyclictest3851703-21mta-sts-daemon07:40:010
3377571991812,5cyclictest3757703-21unixbench_singl11:39:530
3377571991812,5cyclictest3507379-21gltestperf08:54:410
337757199181,11cyclictest3683895-21/usr/sbin/munin10:54:410
337757199180,15cyclictest1-21systemd09:50:000
337757199180,15cyclictest1-21systemd09:50:000
337757199180,13cyclictest3676194-21ssh10:49:020
337757199180,12cyclictest3404892-21awk07:30:000
2649091180,2phc2sys0-21swapper/311:40:373
337757399174,6cyclictest0-21swapper/211:30:002
3377573991715,1cyclictest0-21swapper/208:45:002
3377573991713,2cyclictest0-21swapper/211:23:552
3377572991714,2cyclictest3810635-21munin-plugin-st12:15:001
3377572991714,2cyclictest3773226-21latency_hist11:50:031
3377572991714,2cyclictest3727843-21sh11:20:011
3377572991714,2cyclictest3631586-21tr10:19:381
3377572991714,2cyclictest3609586-21irqrtprio10:04:431
3377572991714,2cyclictest3553795-21grep09:24:521
3377572991714,2cyclictest3448403-21pmu-power08:04:481
3377572991713,3cyclictest3740013-21kthreadcore11:29:451
3377572991712,4cyclictest3827634-1atopacctd11:34:441
3377572991710,3cyclictest3851702-21mta-sts-daemon12:02:181
337757199175,10cyclictest3480705-21sshd08:32:540
337757199173,9cyclictest3406850-21kthreadcore07:34:430
337757199171,11cyclictest3519903-21cat09:04:390
337757199170,12cyclictest3393494-21expr07:24:410
2649091170,3phc2sys0-21swapper/309:14:273
2649091170,2phc2sys0-21swapper/312:16:383
2649091170,2phc2sys0-21swapper/312:03:233
2649091170,1phc2sys0-21swapper/311:10:483
337757399169,3cyclictest0-21swapper/211:34:362
337757399164,8cyclictest0-21swapper/210:10:002
337757399162,5cyclictest0-21swapper/212:20:012
337757399161,7cyclictest0-21swapper/208:30:002
3377573991614,1cyclictest0-21swapper/211:55:242
3377573991614,1cyclictest0-21swapper/210:59:362
3377573991614,1cyclictest0-21swapper/208:15:012
3377573991613,1cyclictest0-21swapper/212:10:002
3377573991613,1cyclictest0-21swapper/212:01:532
3377573991613,1cyclictest0-21swapper/211:45:522
3377573991613,1cyclictest0-21swapper/211:01:452
3377573991613,1cyclictest0-21swapper/210:54:132
3377573991613,1cyclictest0-21swapper/210:45:002
3377573991613,1cyclictest0-21swapper/210:37:172
3377573991613,1cyclictest0-21swapper/209:55:002
3377573991613,1cyclictest0-21swapper/209:48:432
3377573991613,1cyclictest0-21swapper/209:48:432
3377573991613,1cyclictest0-21swapper/209:00:002
3377573991612,2cyclictest0-21swapper/212:24:492
3377573991612,1cyclictest0-21swapper/209:09:332
337757399161,13cyclictest0-21swapper/209:25:002
337757399161,11cyclictest0-21swapper/211:20:002
3377572991613,2cyclictest3851703-21mta-sts-daemon11:37:581
3377572991613,2cyclictest3851698-21mta-sts-daemon10:24:381
3377572991613,2cyclictest3818586-21sh12:20:011
3377572991613,2cyclictest3686481-21cut10:54:441
3377572991613,2cyclictest3681974-21grep10:49:511
3377572991613,2cyclictest3624297-21sort10:14:411
3377572991613,2cyclictest3594732-21kthreadcore09:54:451
3377572991613,2cyclictest3539019-21latency_hist09:15:021
3377572991613,2cyclictest3525258-21systemd-run09:05:021
3377572991613,2cyclictest3506264-21systemd-run08:50:021
3377572991613,2cyclictest3461627-21cut08:15:011
3377572991611,1cyclictest134050irq/121-eno107:59:441
3377572991610,5cyclictest3840937-21lldpd08:53:081
337757199164,8cyclictest0-21swapper/008:48:220
2649091160,2phc2sys0-21swapper/309:46:243
2649091160,2phc2sys0-21swapper/309:46:233
2649091160,1phc2sys0-21swapper/307:36:013
337757399155,6cyclictest0-21swapper/207:30:002
337757399154,6cyclictest0-21swapper/209:40:002
3377573991512,1cyclictest0-21swapper/212:35:032
3377573991512,1cyclictest0-21swapper/212:10:162
3377573991512,1cyclictest0-21swapper/211:50:222
3377573991512,1cyclictest0-21swapper/211:39:042
3377573991512,1cyclictest0-21swapper/211:14:422
3377573991512,1cyclictest0-21swapper/211:06:332
3377573991512,1cyclictest0-21swapper/209:30:482
3377573991512,1cyclictest0-21swapper/208:54:462
3377573991512,1cyclictest0-21swapper/208:39:472
3377573991512,1cyclictest0-21swapper/208:19:392
3377573991512,1cyclictest0-21swapper/207:25:002
3377573991512,1cyclictest0-21swapper/207:19:372
337757299159,5cyclictest3851704-21mta-sts-daemon12:08:501
337757299157,3cyclictest0-21swapper/111:13:581
337757299156,7cyclictest3453009-21tr08:09:451
337757299151,2cyclictest491rcuog/211:56:131
3377572991512,2cyclictest3851705-21mta-sts-daemon10:06:561
3377572991512,2cyclictest3851703-21mta-sts-daemon08:29:391
3377572991512,2cyclictest3851702-21mta-sts-daemon11:06:231
3377572991512,2cyclictest3827634-1atopacctd10:29:451
3377572991512,2cyclictest3601565-21gltestperf09:59:411
3377572991512,2cyclictest3563530-21cpuspeed09:34:391
3377572991512,2cyclictest3462789-21gltestperf08:19:421
3377572991512,2cyclictest3433745-21kthreadcore07:54:461
3377572991512,2cyclictest3411474-21sh07:35:021
3377572991511,3cyclictest0-21swapper/107:30:011
3377572991510,2cyclictest3851702-21mta-sts-daemon09:17:211
2649091151,6phc2sys0-21swapper/308:44:363
2649091151,2phc2sys0-21swapper/311:20:283
2649091150,2phc2sys0-21swapper/310:34:153
3377573991412,1cyclictest0-21swapper/212:34:462
3377573991412,1cyclictest0-21swapper/210:16:002
3377573991412,1cyclictest0-21swapper/209:10:192
3377573991412,1cyclictest0-21swapper/209:04:482
3377573991411,1cyclictest0-21swapper/210:45:552
3377573991411,1cyclictest0-21swapper/210:26:372
3377573991411,1cyclictest0-21swapper/210:21:222
3377573991411,1cyclictest0-21swapper/210:11:592
3377573991411,1cyclictest0-21swapper/210:01:352
3377573991411,1cyclictest0-21swapper/209:19:382
3377573991411,1cyclictest0-21swapper/208:50:002
3377573991411,1cyclictest0-21swapper/208:33:362
3377573991411,1cyclictest0-21swapper/207:45:182
3377573991410,2cyclictest0-21swapper/208:24:432
3377573991410,2cyclictest0-21swapper/208:24:432
3377572991411,2cyclictest3851702-21mta-sts-daemon11:24:111
3377572991411,2cyclictest3526405-21cut09:09:411
3377572991411,2cyclictest3490025-21kthreadcore08:39:431
3377572991410,3cyclictest3581007-21kthreadcore09:44:451
3377572991410,3cyclictest3413482-21kthreadcore07:39:451
3377572991410,3cyclictest3387830-21irqcore07:19:421
2649091140,3phc2sys0-21swapper/307:48:073
2649091140,2phc2sys0-21swapper/312:26:443
2649091140,2phc2sys0-21swapper/311:35:193
2649091140,1phc2sys0-21swapper/310:45:543
383433398130,4rtkit-daemon3851704-21mta-sts-daemon07:08:041
337757399139,2cyclictest0-21swapper/207:40:062
3377573991311,1cyclictest0-21swapper/210:32:312
3377573991311,1cyclictest0-21swapper/208:08:592
3377573991311,1cyclictest0-21swapper/208:04:502
3377573991310,1cyclictest0-21swapper/209:40:092
3377573991310,1cyclictest0-21swapper/207:57:132
3377573991310,1cyclictest0-21swapper/207:39:462
3377573991310,1cyclictest0-21swapper/207:12:442
337757299139,3cyclictest3506305-21kworker/u16:2+nfsiod09:46:371
337757299139,3cyclictest3506305-21kworker/u16:2+nfsiod09:46:371
337757299133,1cyclictest134050irq/121-eno108:24:491
337757299133,1cyclictest134050irq/121-eno108:24:491
3377572991310,2cyclictest3851704-21mta-sts-daemon07:20:521
3377572991310,2cyclictest2852532-21ntpd11:04:431
337757299130,3cyclictest0-21swapper/107:49:021
2649091135,3phc2sys0-21swapper/309:29:463
2649091131,5phc2sys0-21swapper/309:09:383
2649091130,2phc2sys0-21swapper/311:49:323
2649091130,2phc2sys0-21swapper/311:06:083
2649091130,2phc2sys0-21swapper/311:00:513
2649091130,2phc2sys0-21swapper/310:08:033
2649091130,2phc2sys0-21swapper/310:04:193
2649091130,2phc2sys0-21swapper/309:57:133
2649091130,2phc2sys0-21swapper/309:15:583
35768762120,4sleep30-21swapper/309:40:133
3377573991210,1cyclictest0-21swapper/207:34:472
3377573991210,1cyclictest0-21swapper/207:10:012
2649091120,2phc2sys0-21swapper/312:10:493
2649091120,2phc2sys0-21swapper/308:52:573
2649091120,1phc2sys0-21swapper/307:30:523
2649091116,2phc2sys0-21swapper/310:18:143
2649091111,6phc2sys0-21swapper/312:24:363
2649091111,2phc2sys0-21swapper/312:31:493
2649091111,2phc2sys0-21swapper/310:38:133
2649091111,2phc2sys0-21swapper/308:46:183
2649091111,2phc2sys0-21swapper/308:14:443
2649091110,2phc2sys0-21swapper/311:50:173
2649091110,2phc2sys0-21swapper/311:26:073
2649091110,2phc2sys0-21swapper/309:53:043
2649091110,2phc2sys0-21swapper/307:19:423
2649091110,1phc2sys0-21swapper/310:53:533
2649091110,1phc2sys0-21swapper/308:57:523
2649091110,1phc2sys0-21swapper/308:30:313
2649091110,1phc2sys0-21swapper/308:03:143
2649091110,1phc2sys0-21swapper/307:55:563
2649091110,1phc2sys0-21swapper/307:43:463
2649091101,2phc2sys0-21swapper/311:19:493
2649091101,2phc2sys0-21swapper/311:00:013
2649091101,2phc2sys0-21swapper/310:20:053
2649091101,2phc2sys0-21swapper/307:24:513
2649091100,3phc2sys0-21swapper/312:39:483
2649091100,3phc2sys0-21swapper/311:31:593
2649091100,2phc2sys0-21swapper/312:09:043
2649091100,2phc2sys0-21swapper/311:56:023
2649091100,2phc2sys0-21swapper/310:12:043
2649091100,2phc2sys0-21swapper/309:32:133
2649091100,2phc2sys0-21swapper/308:29:443
2649091100,2phc2sys0-21swapper/308:22:493
2649091100,2phc2sys0-21swapper/308:22:483
2649091100,2phc2sys0-21swapper/307:29:483
2649091100,2phc2sys0-21swapper/307:14:213
2649091100,1phc2sys0-21swapper/309:35:403
2649091100,1phc2sys0-21swapper/308:37:523
264909191,2phc2sys0-21swapper/308:19:453
264909191,2phc2sys0-21swapper/308:09:513
264909190,2phc2sys0-21swapper/310:40:143
264909190,2phc2sys0-21swapper/307:54:443
264909190,2phc2sys0-21swapper/307:09:413
264909190,1phc2sys0-21swapper/309:00:483
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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