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2026-04-02 - 21:10
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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 376 highest latencies:
System rackeslot2.osadl.org (updated Thu Apr 02, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7296802290,1sleep10-21swapper/112:14:011
5984262270,1sleep10-21swapper/110:46:151
330991992623,2cyclictest0-21swapper/209:40:022
4438582250,2sleep20-21swapper/209:01:182
330985992415,5cyclictest469319-21kthreadcore09:21:140
330985992412,7cyclictest0-21swapper/007:20:000
3700632220,7sleep13827634-1atopacctd08:06:071
330991992220,1cyclictest0-21swapper/210:25:012
330991992219,1cyclictest0-21swapper/212:25:012
330990992219,2cyclictest488536-21turbostat.cron09:35:001
330985992219,2cyclictest745090-21systemd12:25:000
383433398210,4rtkit-daemon3851705-21mta-sts-daemon10:43:200
383433398210,3rtkit-daemon3851705-21mta-sts-daemon07:46:330
330991992118,1cyclictest0-21swapper/209:30:002
330990992112,4cyclictest0-21swapper/109:40:021
330985992118,2cyclictest3824500-21cron07:30:000
330985992111,6cyclictest565578-21kthreadcore10:26:140
330991992018,1cyclictest0-21swapper/210:05:012
330991992018,1cyclictest0-21swapper/208:20:012
330990992017,2cyclictest1296-21polkitd08:25:051
330990992017,2cyclictest1290-21dbus-daemon12:21:191
330990992017,2cyclictest1290-21dbus-daemon11:25:021
33098599209,5cyclictest0-21swapper/012:05:010
33098599204,5cyclictest368316-21basename08:00:000
330985992017,2cyclictest722652-21/usr/sbin/munin12:10:010
330985992017,2cyclictest601539-21grep10:50:010
330985992017,2cyclictest1290-21dbus-daemon10:55:020
330985992016,3cyclictest505310-21sed09:46:130
330985992016,2cyclictest0-21swapper/009:55:010
33099199191,8cyclictest0-21swapper/211:30:012
330991991917,1cyclictest0-21swapper/210:10:022
33099099199,4cyclictest0-21swapper/112:01:071
330985991916,2cyclictest699665-21cron11:55:000
330985991916,2cyclictest578649-21apt-key10:35:000
330985991916,2cyclictest387759-21gpgv08:20:000
330985991912,6cyclictest0-21swapper/012:40:010
330985991911,4cyclictest552154-21kthreadcore10:16:160
330985991910,5cyclictest703282-21kthreadcore11:56:160
330985991910,5cyclictest3827634-1atopacctd10:36:560
330991991815,1cyclictest0-21swapper/210:30:002
330991991815,1cyclictest0-21swapper/207:21:342
330991991812,2cyclictest0-21swapper/209:58:562
330990991815,2cyclictest608936-21latency_hist10:55:011
330990991815,2cyclictest571165-21systemd-run10:30:011
330990991815,2cyclictest3824567-21rs:main1
330990991814,3cyclictest1-21systemd08:00:021
330990991812,5cyclictest623960-21latency_hist11:05:001
330990991810,4cyclictest696128-21kthreadcore11:51:141
33098599188,4cyclictest0-21swapper/012:26:140
33098599185,2cyclictest631491-21ssh11:10:000
33098599183,9cyclictest0-21swapper/009:16:070
330985991815,2cyclictest760311-21/usr/sbin/munin12:35:010
330985991815,2cyclictest531831-21head10:01:170
330985991815,2cyclictest3880607-21gdbus07:13:030
330985991815,2cyclictest0-21swapper/011:35:010
330985991815,2cyclictest0-21swapper/011:35:010
330985991815,2cyclictest0-21swapper/008:30:000
330985991813,1cyclictest383433398rtkit-daemon09:11:410
330985991810,2cyclictest0-21swapper/011:26:080
33098599180,2cyclictest491834-21cut09:36:140
2649091180,2phc2sys0-21swapper/310:22:063
2649091180,2phc2sys0-21swapper/310:02:483
330991991715,1cyclictest0-21swapper/208:30:012
330991991714,1cyclictest0-21swapper/211:36:112
330991991714,1cyclictest0-21swapper/211:35:002
330991991714,1cyclictest0-21swapper/211:35:002
330991991714,1cyclictest0-21swapper/211:16:082
330991991714,1cyclictest0-21swapper/211:00:022
33099099179,3cyclictest0-21swapper/109:59:561
330990991715,1cyclictest444832-21kworker/u16:0-rpciod11:06:091
330990991714,2cyclictest707377-21/usr/sbin/munin12:00:011
330990991714,2cyclictest692228-21apt-key11:50:021
330990991714,2cyclictest616515-21latency_hist11:00:011
330990991714,2cyclictest466650-21/usr/sbin/munin09:21:141
330990991714,2cyclictest3851703-21mta-sts-daemon12:36:151
330990991714,2cyclictest369237-21munin-plugin-st08:05:021
330990991714,2cyclictest1996-21runrttasks11:12:031
330990991713,3cyclictest331444-21gpgconf07:13:031
330990991713,3cyclictest1326-21systemd-logind09:20:021
330990991713,3cyclictest1290-21dbus-daemon09:30:011
330990991711,5cyclictest444832-21kworker/u16:0-events_unbound11:27:571
33098599178,6cyclictest686005-21irqcore11:46:130
33098599178,4cyclictest526043-21idleruntime-cro10:00:000
330985991714,2cyclictest654419-21gdbus11:25:020
330985991714,2cyclictest3851875-21systemd-journal08:45:010
330985991714,2cyclictest3827634-1atopacctd10:21:160
330985991713,3cyclictest444832-21kworker/u16:0+nfsiod09:41:540
330985991713,3cyclictest1290-21dbus-daemon07:10:020
33098599170,4cyclictest0-21swapper/007:36:030
2649091170,2phc2sys0-21swapper/310:58:573
2649091170,2phc2sys0-21swapper/310:53:363
2649091170,2phc2sys0-21swapper/310:35:283
2649091170,2phc2sys0-21swapper/310:33:163
33099199168,1cyclictest0-21swapper/211:20:192
330991991614,1cyclictest0-21swapper/208:40:122
330991991614,1cyclictest0-21swapper/208:00:022
330991991613,1cyclictest0-21swapper/212:31:192
330991991613,1cyclictest0-21swapper/212:26:122
330991991613,1cyclictest0-21swapper/212:16:082
330991991613,1cyclictest0-21swapper/210:51:162
330991991613,1cyclictest0-21swapper/210:41:152
33099099169,6cyclictest646524-21cron11:20:001
33099099165,4cyclictest528855-21kthreadcore10:01:131
330990991613,2cyclictest684377-21cron11:45:001
330990991613,2cyclictest3851702-21mta-sts-daemon11:31:351
330990991613,2cyclictest3851702-21mta-sts-daemon11:31:351
330990991613,2cyclictest1296-21polkitd09:05:011
330990991612,3cyclictest444832-21kworker/u16:0+nfsiod10:37:231
330990991611,3cyclictest1-21systemd07:30:001
33099099160,3cyclictest0-21swapper/110:24:561
33098599168,2cyclictest0-21swapper/009:35:010
33098599166,5cyclictest0-21swapper/011:11:200
33098599165,6cyclictest0-21swapper/010:06:210
33098599162,6cyclictest0-21swapper/012:16:120
330985991613,2cyclictest614095-21kthreadcore10:56:160
330985991613,2cyclictest362001-21idleruntime-cro07:55:000
330985991613,2cyclictest1290-21dbus-daemon08:40:010
2649091160,3phc2sys0-21swapper/311:18:403
330991991513,1cyclictest0-21swapper/211:50:012
330991991513,1cyclictest0-21swapper/211:41:162
330991991513,1cyclictest0-21swapper/210:16:162
330991991513,1cyclictest0-21swapper/209:51:142
330991991513,1cyclictest0-21swapper/209:45:022
330991991513,1cyclictest0-21swapper/207:15:022
330991991512,1cyclictest0-21swapper/212:36:122
330991991512,1cyclictest0-21swapper/210:31:152
330991991512,1cyclictest0-21swapper/210:15:012
330991991512,1cyclictest0-21swapper/208:21:152
330991991511,2cyclictest0-21swapper/211:14:092
330991991511,2cyclictest0-21swapper/210:39:412
330990991512,2cyclictest755533-21kthreadcore12:31:141
330990991512,2cyclictest718226-21kthreadcore12:06:171
330990991512,2cyclictest671195-21irqrtprio11:36:141
330990991512,2cyclictest518740-21munin-plugin-st09:55:011
330990991512,2cyclictest504206-21aten_repower_cu09:46:071
330990991512,2cyclictest452944-21kthreadcore09:11:161
330990991512,2cyclictest391264-21kthreadcore08:21:141
330990991512,2cyclictest3851704-21mta-sts-daemon08:11:001
330990991512,2cyclictest360949-21/usr/sbin/munin07:46:171
330990991512,2cyclictest330989-21cut07:10:011
330990991512,2cyclictest330976-21cyclictest08:36:191
330990991512,2cyclictest330976-21cyclictest08:31:161
330990991512,2cyclictest1996-21runrttasks10:40:071
330990991512,2cyclictest1290-21dbus-daemon09:41:181
330990991511,3cyclictest350070-21kthreadcore07:36:091
33098599155,8cyclictest373511-21tr08:06:110
33098599155,6cyclictest0-21swapper/011:45:010
330985991512,2cyclictest546975-21mailstats10:11:190
330985991512,2cyclictest368988-21dump-pmu-power08:05:000
330985991512,2cyclictest1-21systemd12:11:170
330985991511,3cyclictest671339-21kthreadcore11:36:140
330985991511,3cyclictest391264-21kthreadcore08:21:150
330985991510,3cyclictest1326-21systemd-logind07:35:010
330985991510,2cyclictest0-21swapper/009:05:020
33098599150,8cyclictest438374-21latency_hist09:00:010
2649091150,3phc2sys0-21swapper/312:07:393
2649091150,3phc2sys0-21swapper/309:36:433
2649091150,2phc2sys0-21swapper/307:56:053
2649091150,2phc2sys0-21swapper/307:20:023
383433398140,6rtkit-daemon3851704-21mta-sts-daemon10:15:161
33099199141,6cyclictest0-21swapper/211:56:082
330991991412,1cyclictest0-21swapper/211:03:402
330991991412,1cyclictest0-21swapper/209:06:142
330991991411,2cyclictest0-21swapper/211:53:232
330991991411,2cyclictest0-21swapper/209:47:222
330991991411,1cyclictest0-21swapper/212:00:112
330991991411,1cyclictest0-21swapper/209:21:152
330991991411,1cyclictest0-21swapper/209:12:482
330991991411,1cyclictest0-21swapper/208:56:082
330991991411,1cyclictest0-21swapper/207:10:012
330991991410,2cyclictest0-21swapper/211:06:192
33099099149,4cyclictest331738-21munin-node07:51:531
33099099149,4cyclictest331738-21munin-node07:30:271
33099099146,3cyclictest0-21swapper/110:06:071
33099099143,2cyclictest134050irq/121-eno110:10:571
330990991411,2cyclictest750653-21grep12:26:151
330990991411,2cyclictest734565-21kthreadcore12:16:131
330990991411,2cyclictest574683-21kthreadcore10:31:141
330990991411,2cyclictest450178-21mailstats09:06:191
330990991411,2cyclictest422889-21kthreadcore08:46:151
330990991411,2cyclictest419817-21systemd08:45:011
330990991411,2cyclictest382559-21gltestperf08:16:101
330990991410,3cyclictest436314-21kthreadcore08:56:151
330990991410,3cyclictest336558-21kthreadcore07:16:101
33098599147,2cyclictest401183-21/usr/sbin/munin08:31:110
33098599145,5cyclictest0-21swapper/008:46:130
33098599143,6cyclictest646550-21ls11:20:010
330985991411,2cyclictest618485-21kthreadcore11:01:150
330985991411,2cyclictest428363-21kthreadcore08:51:140
330985991411,2cyclictest3827634-1atopacctd08:11:100
33098599140,6cyclictest0-21swapper/009:06:150
2649091141,2phc2sys0-21swapper/308:06:103
2649091140,2phc2sys0-21swapper/310:40:153
2649091140,2phc2sys0-21swapper/310:06:333
2649091140,2phc2sys0-21swapper/309:34:153
4579452130,3sleep30-21swapper/309:13:313
330991991311,1cyclictest0-21swapper/212:05:502
330991991311,1cyclictest0-21swapper/210:46:122
330991991311,1cyclictest0-21swapper/209:31:132
330991991311,1cyclictest0-21swapper/209:16:202
330991991311,1cyclictest0-21swapper/208:30:562
330991991311,1cyclictest0-21swapper/208:11:122
330991991311,1cyclictest0-21swapper/207:36:072
330991991310,1cyclictest0-21swapper/212:14:062
330991991310,1cyclictest0-21swapper/208:51:152
330991991310,1cyclictest0-21swapper/208:06:092
330991991310,1cyclictest0-21swapper/207:46:102
330990991310,2cyclictest427351-21irqrtprio08:51:131
330990991310,2cyclictest3834328-21sendmail-mta07:42:021
330985991310,2cyclictest3851704-21mta-sts-daemon09:25:100
330985991310,2cyclictest3834328-21sendmail-mta07:43:020
330985991310,2cyclictest1-21systemd07:21:450
2649091130,4phc2sys0-21swapper/311:24:273
2649091130,3phc2sys0-21swapper/311:11:073
2649091130,3phc2sys0-21swapper/311:03:073
2649091130,2phc2sys0-21swapper/308:12:543
33099199129,1cyclictest0-21swapper/208:36:132
330991991210,1cyclictest0-21swapper/207:35:012
330991991210,1cyclictest0-21swapper/207:26:102
330991991210,1cyclictest0-21swapper/207:20:002
2649091121,4phc2sys0-21swapper/311:56:083
2649091120,2phc2sys0-21swapper/311:40:213
2649091120,2phc2sys0-21swapper/311:34:043
2649091120,2phc2sys0-21swapper/311:34:043
2649091120,2phc2sys0-21swapper/307:42:223
2649091120,1phc2sys0-21swapper/312:33:503
2649091120,1phc2sys0-21swapper/311:25:063
2649091120,1phc2sys0-21swapper/311:05:183
2649091120,1phc2sys0-21swapper/309:48:263
5996372110,2sleep30-21swapper/310:46:173
33099199119,1cyclictest0-21swapper/208:46:102
33099199119,1cyclictest0-21swapper/208:03:382
33099199118,1cyclictest0-21swapper/207:51:032
2649091111,3phc2sys0-21swapper/309:09:233
2649091111,2phc2sys0-21swapper/311:46:113
2649091111,2phc2sys0-21swapper/309:51:343
2649091111,2phc2sys0-21swapper/309:21:163
2649091111,2phc2sys0-21swapper/308:20:013
2649091110,2phc2sys0-21swapper/312:39:373
2649091110,2phc2sys0-21swapper/311:36:133
2649091110,2phc2sys0-21swapper/310:16:083
2649091110,2phc2sys0-21swapper/310:10:273
2649091110,2phc2sys0-21swapper/307:28:353
2649091110,2phc2sys0-21swapper/307:13:003
2649091110,1phc2sys0-21swapper/309:03:453
2649091110,1phc2sys0-21swapper/308:59:403
2649091110,1phc2sys0-21swapper/308:21:493
2649091110,1phc2sys0-21swapper/308:00:273
33099199108,1cyclictest0-21swapper/207:44:112
2649091102,2phc2sys0-21swapper/309:42:053
2649091102,2phc2sys0-21swapper/309:26:093
2649091101,2phc2sys0-21swapper/312:29:313
2649091101,2phc2sys0-21swapper/310:27:233
2649091101,2phc2sys0-21swapper/307:40:023
2649091100,6phc2sys524923-21chrt09:56:343
2649091100,3phc2sys0-21swapper/308:36:123
2649091100,2phc2sys0-21swapper/312:21:263
2649091100,2phc2sys0-21swapper/312:16:493
2649091100,2phc2sys0-21swapper/312:10:153
2649091100,2phc2sys0-21swapper/312:01:183
2649091100,2phc2sys0-21swapper/309:15:073
2649091100,2phc2sys0-21swapper/308:51:073
2649091100,2phc2sys0-21swapper/307:06:313
2649091100,1phc2sys0-21swapper/307:22:463
264909192,2phc2sys0-21swapper/308:25:303
264909191,2phc2sys0-21swapper/308:41:133
264909190,2phc2sys0-21swapper/311:50:033
264909190,2phc2sys0-21swapper/308:31:113
264909190,2phc2sys0-21swapper/307:46:073
264909190,1phc2sys0-21swapper/308:46:423
264909181,2phc2sys0-21swapper/307:30:483
264909180,1phc2sys0-21swapper/307:50:233
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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