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2026-04-20 - 22:37
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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 all highest latencies:
System rackeslot2.osadl.org (updated Mon Apr 20, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
175820321070,2sleep01758135-21ssh12:30:570
175820321070,2sleep01758135-21ssh12:30:570
15699772960,2sleep20-21swapper/210:25:572
16978572950,2sleep20-21swapper/211:50:552
17075552750,1sleep01707553-21ssh12:00:430
16998562690,1sleep11699855-21ssh11:55:151
16466102560,1sleep01646608-21ssh11:18:540
1297785992915,6cyclictest1511155-21systemd09:50:000
1297785992617,2cyclictest1290-21dbus-daemon11:40:010
1297790992519,2cyclictest17350irq/127-ahci[0000:00:17.0]08:40:001
1297795992321,1cyclictest0-21swapper/211:40:012
1297790992319,3cyclictest1-21systemd11:20:001
1297785992320,2cyclictest1496229-21systemd-run09:40:020
1297785992320,2cyclictest1304491-21systemd-run07:15:010
1297790992219,2cyclictest1752184-21systemd12:30:011
1297790992216,2cyclictest134050irq/121-eno111:08:411
1297795992119,1cyclictest0-21swapper/211:20:012
1297795992118,1cyclictest0-21swapper/208:35:002
1297790992118,2cyclictest1714708-21sh12:05:011
1297790992118,2cyclictest1304240-21proc_pri07:15:011
1297790992117,3cyclictest1290-21dbus-daemon11:45:541
1297790992112,4cyclictest0-21swapper/111:55:011
129778599219,7cyclictest0-21swapper/008:10:420
129778599218,6cyclictest0-21swapper/011:12:420
129778599217,12cyclictest1450763-21systemd-run09:10:010
1297785992117,2cyclictest0-21swapper/010:25:000
13246272200,1sleep00-21swapper/007:25:560
1297795992018,1cyclictest0-21swapper/208:15:012
1297795992017,1cyclictest0-21swapper/209:35:012
1297790992017,2cyclictest949982-21kworker/u16:0-events_unbound09:20:011
1297790992017,2cyclictest1381561-21apt-key08:15:001
129778599209,6cyclictest0-21swapper/012:20:430
129778599209,6cyclictest0-21swapper/010:45:550
1297785992017,2cyclictest3824565-21in:imuxsock11:25:000
1297785992016,3cyclictest3880722-21gmain08:55:010
1297785992014,5cyclictest1730097-21aten2.4-expect12:15:430
1297785992013,6cyclictest1533272-21runrttasks10:03:590
129779599197,8cyclictest0-21swapper/210:40:012
1297795991917,1cyclictest0-21swapper/209:20:012
129779099199,4cyclictest3851703-21mta-sts-daemon10:51:331
1297790991916,2cyclictest1325216-21/usr/sbin/munin07:30:011
1297790991916,2cyclictest1318825-21cron07:25:001
1297790991915,3cyclictest1290-21dbus-daemon09:40:011
129778599198,7cyclictest1326-21systemd-logind11:30:000
129778599192,12cyclictest0-21swapper/007:43:430
1297785991916,2cyclictest1692029-21latency_hist11:50:000
1297785991916,2cyclictest1407095-21sh08:35:020
129778599191,13cyclictest0-21swapper/011:32:560
2649091180,3phc2sys0-21swapper/312:37:113
1297795991816,1cyclictest0-21swapper/211:15:022
1297795991815,1cyclictest0-21swapper/212:20:492
1297795991815,1cyclictest0-21swapper/210:00:472
1297795991811,5cyclictest0-21swapper/207:25:422
1297790991815,2cyclictest1767032-21sendmail12:40:011
1297790991815,2cyclictest1571439-21apt-get10:30:001
1297790991815,2cyclictest1473259-21latency_hist09:25:011
1297790991815,2cyclictest0-21swapper/110:05:011
1297790991814,3cyclictest3824565-21in:imuxsock11:45:021
129778599187,6cyclictest0-21swapper/010:30:440
129778599186,2cyclictest1-21systemd12:00:010
1297785991815,2cyclictest1631746-21ssh11:10:000
1297785991815,2cyclictest1616732-21grep11:00:010
2649091171,2phc2sys0-21swapper/312:05:443
129779599173,6cyclictest15633332sleep210:23:052
129779599173,2cyclictest0-21swapper/211:03:262
129779599171,5cyclictest15544122sleep210:15:522
1297795991715,1cyclictest0-21swapper/209:40:012
1297795991715,1cyclictest0-21swapper/207:50:012
1297795991714,1cyclictest0-21swapper/209:10:012
1297795991714,1cyclictest0-21swapper/207:10:002
1297795991713,2cyclictest0-21swapper/210:14:332
1297795991710,4cyclictest14380762sleep209:00:002
129779099179,3cyclictest0-21swapper/110:30:541
1297790991714,2cyclictest1503588-21sh09:45:001
1297790991714,2cyclictest1387849-21latency_hist08:20:001
1297790991714,2cyclictest1362641-21systemd08:00:011
1297790991714,2cyclictest0-21swapper/109:50:021
1297790991714,2cyclictest0-21swapper/109:15:011
1297790991714,2cyclictest0-21swapper/108:30:001
1297790991713,3cyclictest3827634-1atopacctd08:20:501
1297790991711,5cyclictest3834328-21sendmail-mta12:32:091
1297790991711,5cyclictest3834328-21sendmail-mta12:32:091
1297790991711,5cyclictest1620220-21kthreadcore11:00:471
129778599178,5cyclictest1567398-21kthreadcore10:25:510
129778599177,6cyclictest1-21systemd10:40:010
129778599177,6cyclictest0-21swapper/012:10:450
129778599176,6cyclictest0-21swapper/012:26:410
1297785991714,2cyclictest1526191-21latency_hist10:00:010
1297785991714,2cyclictest1518863-21latency_hist09:55:020
1297785991714,2cyclictest1486588-21mailstats09:30:550
1297785991714,2cyclictest1465866-21latency_hist09:20:020
1297785991714,2cyclictest1297779-21cyclictest07:15:500
1297785991712,2cyclictest3851703-21mta-sts-daemon10:06:440
129778599170,2cyclictest1473734-21/usr/sbin/munin09:25:460
129778599170,2cyclictest1473734-21/usr/sbin/munin09:25:460
2649191160,1ptp4l0-21swapper/309:40:033
2649091160,1phc2sys0-21swapper/310:19:023
129779599163,1cyclictest0-21swapper/208:02:542
1297795991614,1cyclictest0-21swapper/209:50:002
1297795991613,1cyclictest0-21swapper/212:07:082
1297795991613,1cyclictest0-21swapper/210:05:492
1297795991613,1cyclictest0-21swapper/209:55:442
1297795991613,1cyclictest0-21swapper/209:40:432
129779099169,6cyclictest3851703-21mta-sts-daemon09:05:531
129779099169,4cyclictest3851704-21mta-sts-daemon11:12:261
129779099168,4cyclictest3851705-21mta-sts-daemon10:09:101
1297790991613,2cyclictest1660319-21mailstats11:25:531
1297790991613,2cyclictest1562603-21grep10:20:561
1297790991613,2cyclictest1406653-21apt-key08:35:001
1297790991613,2cyclictest1331597-21systemd-run07:35:021
1297790991613,2cyclictest0-21swapper/112:10:021
1297790991613,2cyclictest0-21swapper/110:40:021
1297790991613,2cyclictest0-21swapper/109:55:001
1297790991611,2cyclictest3851703-21mta-sts-daemon10:45:541
129779099160,11cyclictest1616155-21ssh10:58:221
129778599166,5cyclictest0-21swapper/011:40:430
129778599164,2cyclictest171ktimers/008:04:250
1297785991614,1cyclictest3851703-21mta-sts-daemon09:00:390
1297785991613,2cyclictest3827634-1atopacctd08:23:410
1297785991613,2cyclictest1722270-21sh12:10:020
1297785991613,2cyclictest1607835-21grep10:50:560
1297785991613,2cyclictest1456421-21ptp4l-jitter09:10:550
129778599160,11cyclictest1419356-21cron08:45:000
2649091150,3phc2sys0-21swapper/310:57:173
2649091150,2phc2sys0-21swapper/311:30:293
2649091150,1phc2sys0-21swapper/311:12:503
129779599158,4cyclictest0-21swapper/209:25:422
129779599158,4cyclictest0-21swapper/209:25:422
129779599153,2cyclictest0-21swapper/207:58:212
129779599151,8cyclictest0-21swapper/208:20:012
1297795991513,1cyclictest0-21swapper/212:10:432
1297795991513,1cyclictest0-21swapper/211:55:522
1297795991513,1cyclictest0-21swapper/211:10:002
1297795991513,1cyclictest0-21swapper/211:00:022
1297795991512,1cyclictest0-21swapper/212:35:012
1297795991512,1cyclictest0-21swapper/212:35:012
1297795991512,1cyclictest0-21swapper/212:19:512
1297795991512,1cyclictest0-21swapper/211:30:532
1297795991512,1cyclictest0-21swapper/210:47:512
1297795991512,1cyclictest0-21swapper/210:35:012
1297795991512,1cyclictest0-21swapper/209:50:492
1297795991512,1cyclictest0-21swapper/208:30:002
1297795991511,2cyclictest0-21swapper/211:45:442
129779099157,3cyclictest0-21swapper/112:20:491
1297790991513,1cyclictest3851703-21mta-sts-daemon11:30:021
1297790991513,1cyclictest1458635-21kworker/u16:3-rpciod10:45:011
1297790991512,2cyclictest1556574-21systemd-run10:20:001
1297790991512,2cyclictest1419446-21latency_hist08:45:001
1297790991512,2cyclictest1-21systemd10:00:011
1297790991512,2cyclictest1-21systemd08:50:421
1297790991512,2cyclictest0-21swapper/111:40:001
1297790991511,3cyclictest3851705-21mta-sts-daemon12:15:581
1297790991511,3cyclictest1353644-21kthreadcore07:50:491
1297790991511,3cyclictest1308089-21kthreadcore07:15:481
129778599159,5cyclictest3851705-21mta-sts-daemon12:35:220
129778599153,7cyclictest1594253-21awk10:45:000
1297785991512,2cyclictest3851703-21mta-sts-daemon07:30:500
1297785991512,2cyclictest1699753-21latency_hist11:55:020
1297785991512,2cyclictest1467633-21kthreadcore09:20:500
1297785991512,2cyclictest1433542-21tr08:55:490
1297785991512,2cyclictest1407835-21fschecks_time08:35:470
1297785991511,3cyclictest1552454-21kthreadcore10:15:490
1297785991511,3cyclictest1501927-21switchtime09:40:550
1297785991511,3cyclictest0-21swapper/008:20:000
1297785991510,4cyclictest3834332-21rtkit-daemon08:28:140
1297785991510,2cyclictest3851704-21mta-sts-daemon11:02:110
383433398140,3rtkit-daemon3851705-21mta-sts-daemon07:24:160
2649091144,2phc2sys0-21swapper/312:27:533
2649091141,3phc2sys0-21swapper/309:15:013
2649091141,2phc2sys0-21swapper/311:35:463
2649091140,2phc2sys0-21swapper/312:32:543
2649091140,2phc2sys0-21swapper/312:32:543
2649091140,2phc2sys0-21swapper/312:21:093
2649091140,2phc2sys0-21swapper/311:09:413
2649091140,2phc2sys0-21swapper/309:42:413
129779599149,3cyclictest0-21swapper/209:10:432
129779599145,1cyclictest0-21swapper/207:20:012
129779599144,7cyclictest17073502chrt12:00:052
129779599143,7cyclictest0-21swapper/212:25:422
1297795991412,1cyclictest0-21swapper/207:15:022
1297795991411,1cyclictest0-21swapper/212:35:552
1297795991411,1cyclictest0-21swapper/210:50:462
1297795991411,1cyclictest0-21swapper/210:44:332
1297795991411,1cyclictest0-21swapper/207:45:002
1297795991411,1cyclictest0-21swapper/207:35:432
1297795991411,1cyclictest0-21swapper/207:30:552
1297795991410,2cyclictest0-21swapper/208:45:172
129779099147,2cyclictest0-21swapper/108:55:431
1297790991412,1cyclictest1297779-21cyclictest08:05:521
1297790991411,2cyclictest3851704-21mta-sts-daemon08:00:451
1297790991411,2cyclictest1727465-21latency12:10:511
1297790991411,2cyclictest1549092-21systemd-run10:15:011
1297790991411,2cyclictest1444583-21latency_hist09:05:021
1297790991411,2cyclictest1350146-21sh07:50:011
1297790991411,2cyclictest1343221-21switchtime07:40:561
1297790991411,2cyclictest1331717-21apt07:35:421
1297790991411,2cyclictest0-21swapper/109:30:021
1297790991411,2cyclictest0-21swapper/109:30:021
1297790991411,2cyclictest0-21swapper/107:10:011
1297790991410,3cyclictest1422975-21kthreadcore08:45:501
1297785991411,2cyclictest1541945-21acpi10:10:420
1297785991411,2cyclictest1369764-21cut08:05:470
1297785991411,2cyclictest1355737-21timerandwakeup07:50:550
1297785991411,2cyclictest1349192-21phc2sys07:45:520
1297785991410,3cyclictest1420777-21irqcore08:45:480
2649091130,4phc2sys0-21swapper/310:21:403
2649091130,3phc2sys0-21swapper/311:20:433
2649091130,3phc2sys0-21swapper/308:05:433
2649091130,2phc2sys0-21swapper/310:46:083
2649091130,2phc2sys0-21swapper/310:31:053
2649091130,2phc2sys0-21swapper/310:00:303
129779599139,2cyclictest0-21swapper/208:40:502
1297795991310,2cyclictest0-21swapper/209:21:072
1297795991310,1cyclictest0-21swapper/211:25:472
1297795991310,1cyclictest0-21swapper/208:20:442
1297795991310,1cyclictest0-21swapper/208:05:492
129779099139,3cyclictest1651515-21kthreadcore11:20:511
129779099139,3cyclictest1438203-21kworker/u16:2+nfsiod09:30:171
129778599135,7cyclictest1332993-1grep07:35:490
1297785991310,2cyclictest1357859-21irqrtprio07:55:490
2649091124,3phc2sys0-21swapper/308:10:553
2649091121,2phc2sys0-21swapper/308:35:023
2649091121,2phc2sys0-21swapper/307:58:543
2649091120,4phc2sys0-21swapper/311:18:413
2649091120,4phc2sys0-21swapper/307:05:433
2649091120,2phc2sys0-21swapper/311:51:333
2649091120,2phc2sys0-21swapper/311:42:243
2649091120,2phc2sys0-21swapper/311:01:393
2649091120,2phc2sys0-21swapper/310:36:053
2649091120,2phc2sys0-21swapper/310:05:413
2649091120,2phc2sys0-21swapper/309:56:333
2649091120,2phc2sys0-21swapper/308:00:423
2649091120,2phc2sys0-21swapper/307:35:543
2649091120,1phc2sys0-21swapper/310:44:263
2649091120,1phc2sys0-21swapper/309:25:353
2649091120,1phc2sys0-21swapper/309:25:353
129779599129,1cyclictest0-21swapper/211:40:552
129779599129,1cyclictest0-21swapper/209:00:462
129779599129,1cyclictest0-21swapper/208:50:512
129779599129,1cyclictest0-21swapper/207:20:262
129779599121,3cyclictest14071892sleep208:35:442
1297795991210,1cyclictest0-21swapper/211:20:432
2649091112,2phc2sys0-21swapper/309:09:403
2649091111,3phc2sys0-21swapper/312:02:403
2649091111,2phc2sys0-21swapper/309:48:083
2649091111,2phc2sys0-21swapper/309:19:223
2649091111,2phc2sys0-21swapper/308:40:433
2649091110,2phc2sys0-21swapper/311:50:013
2649091110,2phc2sys0-21swapper/310:15:013
2649091110,2phc2sys0-21swapper/308:19:143
2649091110,2phc2sys0-21swapper/307:49:393
2649091110,1phc2sys0-21swapper/311:58:233
2649091110,1phc2sys0-21swapper/311:26:323
2649091110,1phc2sys0-21swapper/307:14:543
13881892110,6sleep30-21swapper/308:20:423
129779599110,8cyclictest1350401-21taskset07:50:022
129778599115,1cyclictest11systemd07:10:000
2649091101,2phc2sys0-21swapper/312:17:393
2649091101,2phc2sys0-21swapper/310:55:013
2649091101,2phc2sys0-21swapper/309:50:563
2649091101,2phc2sys0-21swapper/307:52:413
2649091101,2phc2sys0-21swapper/307:40:433
2649091100,3phc2sys0-21swapper/310:27:083
264909192,2phc2sys0-21swapper/307:34:133
264909191,2phc2sys0-21swapper/309:21:303
264909190,2phc2sys0-21swapper/312:10:133
264909190,2phc2sys0-21swapper/309:30:323
264909190,2phc2sys0-21swapper/309:00:143
264909190,2phc2sys0-21swapper/308:56:003
264909190,2phc2sys0-21swapper/308:55:013
264909190,2phc2sys0-21swapper/308:45:443
264909190,2phc2sys0-21swapper/308:35:463
264909190,2phc2sys0-21swapper/308:25:563
264909190,2phc2sys0-21swapper/307:25:083
264909190,2phc2sys0-21swapper/307:24:553
264909190,2phc2sys0-21swapper/307:15:463
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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