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2026-04-02 - 09:19
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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 Apr 02, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
404089922120,2sleep30-21swapper/323:16:163
396417421120,2sleep30-21swapper/322:26:143
374338121090,3sleep30-21swapper/319:46:103
38876512960,2sleep20-21swapper/221:35:022
39182012310,2sleep03918203-21aten_repower_fr21:56:090
40085102290,1sleep10-21swapper/122:56:101
3696701992516,8cyclictest3968119-21latency22:26:170
3696701992515,9cyclictest3970930-21sh22:31:090
369670199248,7cyclictest3955084-21systemd-run22:20:000
369670199248,4cyclictest0-21swapper/023:50:010
3696701992415,8cyclictest3703050-21aten_repower_en19:15:010
3696701992413,9cyclictest4022787-21sh23:05:010
3696703992320,1cyclictest0-21swapper/220:55:002
369670199238,6cyclictest0-21swapper/023:10:020
369670199238,13cyclictest0-21swapper/022:01:140
369670199237,7cyclictest0-21swapper/022:41:090
3696701992314,8cyclictest3886109-21unixbench_multi21:31:230
3696701992313,9cyclictest3896730-21grep21:41:140
3696701992313,8cyclictest0-21swapper/022:50:020
3696701992313,2cyclictest4075538-21cron23:40:000
3696701992313,2cyclictest4005784-21grep22:51:190
3696701992312,2cyclictest0-21swapper/021:10:020
383433398220,5rtkit-daemon3725082-21perl19:31:110
3696702992219,2cyclictest3857064-21ls21:15:001
369670199229,5cyclictest0-21swapper/023:26:100
369670199229,5cyclictest0-21swapper/023:26:100
3696701992214,7cyclictest0-21swapper/023:20:000
3696701992213,8cyclictest3696696-21cyclictest21:36:080
3696701992213,3cyclictest3955088-21kworker/u16:2+nfsiod23:23:410
3696701992212,2cyclictest3857156-21sh21:15:010
3696701992212,2cyclictest0-21swapper/021:25:010
3696701992211,5cyclictest3724051-21systemd-run19:30:000
3696703992118,1cyclictest0-21swapper/200:01:072
3696702992118,2cyclictest4143364-21latency_hist00:25:011
3696702992118,2cyclictest4052897-21kworker/u16:0-rpciod00:10:001
3696702992117,3cyclictest1-21systemd23:25:001
369670199219,3cyclictest0-21swapper/020:36:130
369670199214,6cyclictest0-21swapper/023:53:250
369670199213,6cyclictest0-21swapper/000:21:080
3696701992118,2cyclictest3830566-21apt-key20:55:000
3696701992117,2cyclictest3962568-21apt22:25:000
3696701992111,2cyclictest3904111-21irqcore21:46:140
3696701992111,2cyclictest3824565-21in:imuxsock21:16:160
3696701992110,2cyclictest3982627-21kthreadcore22:36:160
3696703992018,1cyclictest0-21swapper/221:30:032
3696703992017,1cyclictest0-21swapper/222:36:152
3696703992017,1cyclictest0-21swapper/222:30:012
3696703992017,1cyclictest0-21swapper/221:58:592
3696703992017,1cyclictest0-21swapper/220:20:002
3696703992017,1cyclictest0-21swapper/200:35:002
3696703992016,2cyclictest0-21swapper/219:25:002
3696702992017,2cyclictest3894925-21dump-pmu-power21:40:011
3696702992017,2cyclictest1290-21dbus-daemon23:20:011
3696702992017,2cyclictest1290-21dbus-daemon22:50:011
3696701992017,2cyclictest1-21systemd20:20:010
3696701992016,2cyclictest1290-21dbus-daemon19:55:020
3696701992014,5cyclictest4144636-21fschecks_time00:26:090
3696701992010,2cyclictest0-21swapper/019:20:020
369670199200,5cyclictest3849493-21diskmemload22:11:570
383433398190,5rtkit-daemon3851702-21mta-sts-daemon20:57:560
3696703991917,1cyclictest0-21swapper/223:31:172
3696703991917,1cyclictest0-21swapper/219:11:162
3696703991916,1cyclictest0-21swapper/223:51:162
3696703991916,1cyclictest0-21swapper/222:11:102
3696702991916,2cyclictest3955202-21systemd-run22:20:011
3696702991912,3cyclictest3943595-21kthreadcore22:11:161
3696702991911,3cyclictest3768300-21aten2.4-expect20:06:101
369670199199,2cyclictest3824567-21rs:main0
369670199193,5cyclictest4060876-21/usr/sbin/munin23:31:200
3696701991911,5cyclictest4117213-21kthreadcore00:06:150
2649091190,3phc2sys0-21swapper/320:05:003
3696703991816,1cyclictest0-21swapper/219:15:022
3696703991815,1cyclictest0-21swapper/223:56:182
3696703991815,1cyclictest0-21swapper/223:36:192
3696703991815,1cyclictest0-21swapper/222:25:002
3696703991815,1cyclictest0-21swapper/220:46:112
3696703991815,1cyclictest0-21swapper/219:26:152
3696703991814,2cyclictest0-21swapper/200:12:202
3696703991813,3cyclictest0-21swapper/221:10:002
3696702991815,2cyclictest3955691-21/usr/sbin/munin22:21:151
3696702991815,2cyclictest3717993-21systemd-run19:25:021
3696702991812,5cyclictest3851703-21mta-sts-daemon19:16:201
3696702991811,3cyclictest3827634-1atopacctd23:44:571
369670299180,17cyclictest3984687-21ssh22:38:511
369670199187,6cyclictest0-21swapper/000:40:010
369670199187,6cyclictest0-21swapper/000:16:090
369670199187,5cyclictest3716499-21tr19:21:150
3696701991811,2cyclictest3851702-21mta-sts-daemon19:46:230
369670199180,7cyclictest3940154-21wc22:10:010
2649091180,3phc2sys0-21swapper/322:56:223
2649091180,2phc2sys0-21swapper/300:17:143
38596582170,2sleep13859204-21ssh21:16:171
3696703991715,1cyclictest0-21swapper/223:45:002
3696703991715,1cyclictest0-21swapper/222:40:462
3696703991715,1cyclictest0-21swapper/221:05:002
3696703991715,1cyclictest0-21swapper/221:00:022
3696703991715,1cyclictest0-21swapper/219:56:112
3696703991715,1cyclictest0-21swapper/219:35:022
3696703991714,1cyclictest0-21swapper/222:56:172
3696703991714,1cyclictest0-21swapper/220:40:012
3696703991714,1cyclictest0-21swapper/220:31:132
3696703991714,1cyclictest0-21swapper/200:20:022
3696703991713,1cyclictest0-21swapper/222:35:012
369670299179,5cyclictest134050irq/121-eno100:40:011
3696702991714,2cyclictest4150973-21grep00:30:011
3696702991714,2cyclictest4097306-21sh23:52:401
3696702991714,2cyclictest4061221-21tr23:31:111
3696702991714,2cyclictest3915200-21kthreadcore21:51:171
3696702991714,2cyclictest3904427-21kthreadcore21:46:161
3696702991714,2cyclictest3842376-21phc2sys21:01:191
3696702991714,2cyclictest3730247-21latency_hist19:35:001
3696702991713,3cyclictest4158367-21cron00:35:001
3696702991710,6cyclictest3851702-21mta-sts-daemon22:26:191
3696702991710,3cyclictest3928570-21kthreadcore22:01:161
369670199177,5cyclictest0-21swapper/023:45:010
369670199177,5cyclictest0-21swapper/023:11:140
3696701991714,2cyclictest4158386-21dump-pmu-power00:35:000
3696701991714,2cyclictest4015128-21grep23:00:010
3696701991711,5cyclictest3736544-21systemd-run19:40:010
2649091171,2phc2sys0-21swapper/321:46:433
2649091170,3phc2sys0-21swapper/321:23:533
2649091170,2phc2sys0-21swapper/322:06:083
3696703991614,1cyclictest0-21swapper/222:20:022
3696703991614,1cyclictest0-21swapper/219:40:012
3696703991613,1cyclictest0-21swapper/223:26:112
3696703991613,1cyclictest0-21swapper/223:26:112
3696703991613,1cyclictest0-21swapper/223:25:002
3696703991613,1cyclictest0-21swapper/223:06:162
3696703991613,1cyclictest0-21swapper/222:06:172
3696703991613,1cyclictest0-21swapper/221:45:122
3696703991613,1cyclictest0-21swapper/221:11:242
3696703991613,1cyclictest0-21swapper/200:10:012
3696703991612,2cyclictest0-21swapper/200:26:352
369670299169,3cyclictest4084737-21/usr/sbin/munin23:46:131
369670299168,4cyclictest4033583-21kthreadcore23:11:151
3696702991614,1cyclictest3696696-21cyclictest22:08:481
3696702991613,2cyclictest4134292-21grep00:16:201
3696702991613,2cyclictest4121452-21/usr/sbin/munin00:11:131
3696702991613,2cyclictest4021401-21unixbench_singl23:01:221
3696702991613,2cyclictest3976339-21sed22:31:221
3696702991613,2cyclictest3703425-21systemd-run19:15:011
3696702991613,2cyclictest0-21swapper/120:55:011
3696702991612,2cyclictest0-21swapper/121:30:031
3696702991610,5cyclictest3851703-21mta-sts-daemon21:21:211
369670199167,4cyclictest0-21swapper/000:02:110
369670199163,2cyclictest0-21swapper/020:31:090
3696701991613,2cyclictest4105823-21systemd-run00:00:010
3696701991613,2cyclictest3773111-21phc2sys20:06:190
2649091160,2phc2sys0-21swapper/322:49:003
2649091160,2phc2sys0-21swapper/300:24:113
2649091160,2phc2sys0-21swapper/300:09:113
2649091160,1phc2sys0-21swapper/321:34:363
3696703991512,1cyclictest0-21swapper/223:16:082
3696703991512,1cyclictest0-21swapper/223:11:132
3696703991512,1cyclictest0-21swapper/223:01:152
3696703991512,1cyclictest0-21swapper/222:51:222
3696703991512,1cyclictest0-21swapper/221:51:142
3696703991512,1cyclictest0-21swapper/221:41:092
3696703991512,1cyclictest0-21swapper/221:21:122
3696703991512,1cyclictest0-21swapper/221:16:122
3696703991511,2cyclictest0-21swapper/200:36:152
369670299159,5cyclictest3851704-21mta-sts-daemon19:55:271
369670299156,7cyclictest134050irq/121-eno120:15:231
3696702991513,1cyclictest0-21swapper/119:50:011
3696702991512,2cyclictest4054871-21kthreadcore23:26:141
3696702991512,2cyclictest4054871-21kthreadcore23:26:141
3696702991512,2cyclictest4001139-21cstates22:51:101
3696702991512,2cyclictest3919184-21irqcore21:56:141
3696702991512,2cyclictest3824500-21cron23:10:011
3696702991512,2cyclictest3788473-21kthreadcore20:21:151
3696702991512,2cyclictest3774919-21cpuspeed_turbos20:11:091
3696702991511,3cyclictest4101974-21kthreadcore23:56:171
3696702991511,3cyclictest3898533-21kthreadcore21:41:171
369670199158,5cyclictest3851875-21systemd-journal21:51:230
369670199153,7cyclictest3793010-21cron20:25:000
2649091150,3phc2sys0-21swapper/323:00:183
2649091150,3phc2sys0-21swapper/300:36:023
2649091150,2phc2sys0-21swapper/322:51:573
3696703991412,1cyclictest0-21swapper/222:45:382
3696703991412,1cyclictest0-21swapper/200:21:152
3696703991411,1cyclictest0-21swapper/223:45:282
3696703991411,1cyclictest0-21swapper/221:36:142
3696703991411,1cyclictest0-21swapper/220:41:162
3696703991411,1cyclictest0-21swapper/220:26:102
3696703991411,1cyclictest0-21swapper/220:21:152
3696703991411,1cyclictest0-21swapper/220:11:132
3696703991411,1cyclictest0-21swapper/220:01:182
3696703991411,1cyclictest0-21swapper/219:51:102
3696703991411,1cyclictest0-21swapper/219:46:142
3696703991411,1cyclictest0-21swapper/219:41:132
369670399140,11cyclictest3931306-21chrt22:01:242
3696702991412,1cyclictest0-21swapper/120:05:011
3696702991411,2cyclictest3851705-21mta-sts-daemon23:35:411
3696702991411,2cyclictest3851705-21mta-sts-daemon20:35:551
3696702991411,2cyclictest3851698-21mta-sts-daemon22:42:531
3696702991411,2cyclictest3844977-21sed21:06:141
3696702991411,2cyclictest3834332-21rtkit-daemon00:00:431
3696702991411,2cyclictest3800113-21cstates20:31:101
3696702991411,2cyclictest3731937-21kthreadcore19:36:131
3696702991411,2cyclictest3718870-21gltestperf19:26:111
3696702991411,2cyclictest0-21swapper/121:31:201
3696702991411,2cyclictest0-21swapper/119:10:021
3696702991410,3cyclictest3813234-21irqcore20:41:131
369670299140,4cyclictest3831704-21fschecks_count20:56:121
369670199141,7cyclictest3794092-21perl20:26:120
3696701991411,2cyclictest4122443-21irqcore00:11:110
3696701991411,2cyclictest3877927-21proc_pri21:26:190
3696701991411,2cyclictest3851702-21mta-sts-daemon19:41:140
3696701991411,2cyclictest3818010-21grep20:45:000
3696701991411,2cyclictest3758547-21kthreadcore19:56:160
3696701991411,2cyclictest3696696-21cyclictest20:46:140
2649091143,4phc2sys0-21swapper/320:51:073
2649091141,1phc2sys0-21swapper/321:55:253
2649091140,2phc2sys0-21swapper/323:50:093
2649091140,1phc2sys0-21swapper/322:42:593
3696703991311,1cyclictest0-21swapper/220:06:102
369670299139,3cyclictest3755268-21latency_hist19:55:011
3696702991310,2cyclictest3851705-21mta-sts-daemon19:40:511
3696702991310,2cyclictest3821269-21kthreadcore20:46:151
3696702991310,2cyclictest3793855-21cstates20:26:101
369670199131,5cyclictest3774785-21aten2.4-expect20:11:080
3696701991310,2cyclictest3762991-21irqcore20:01:160
2649091137,2phc2sys0-21swapper/320:31:153
2649091131,5phc2sys0-21swapper/319:31:083
2649091130,4phc2sys0-21swapper/322:10:503
2649091130,2phc2sys0-21swapper/323:06:073
2649091130,2phc2sys0-21swapper/320:36:053
2649091130,1phc2sys0-21swapper/322:15:253
2649091130,1phc2sys0-21swapper/319:38:103
2649091130,1phc2sys0-21swapper/319:16:543
2649091123,2phc2sys0-21swapper/322:21:153
2649091120,2phc2sys0-21swapper/323:33:333
2649091120,2phc2sys0-21swapper/323:22:193
2649091120,2phc2sys0-21swapper/323:11:413
2649091120,1phc2sys0-21swapper/321:06:393
2649091120,1phc2sys0-21swapper/300:34:473
2649091120,1phc2sys0-21swapper/300:02:423
2649091112,2phc2sys0-21swapper/323:26:163
2649091112,2phc2sys0-21swapper/323:26:163
2649091111,3phc2sys0-21swapper/322:36:103
2649091111,2phc2sys0-21swapper/322:03:193
2649091110,2phc2sys0-21swapper/320:56:093
2649091110,2phc2sys0-21swapper/319:20:463
2649091110,2phc2sys0-21swapper/300:11:053
2649091110,1phc2sys0-21swapper/320:22:063
2649091110,1phc2sys0-21swapper/319:26:483
369670199104,5cyclictest1-21systemd19:10:010
2649091104,2phc2sys0-21swapper/321:11:233
2649091103,2phc2sys0-21swapper/320:15:003
2649091102,2phc2sys0-21swapper/321:37:413
2649091100,4phc2sys0-21swapper/323:40:203
2649091100,3phc2sys0-21swapper/320:05:413
2649091100,2phc2sys0-21swapper/323:38:383
2649091100,2phc2sys0-21swapper/322:31:173
2649091100,2phc2sys0-21swapper/321:41:533
2649091100,2phc2sys0-21swapper/321:26:333
2649091100,2phc2sys0-21swapper/321:17:333
2649091100,2phc2sys0-21swapper/320:46:073
2649091100,2phc2sys0-21swapper/319:11:213
2649091100,1phc2sys0-21swapper/323:55:383
2649091100,1phc2sys0-21swapper/323:47:363
36967039997,1cyclictest0-21swapper/219:10:012
264909191,2phc2sys0-21swapper/321:01:103
264909191,2phc2sys0-21swapper/320:26:113
264909191,2phc2sys0-21swapper/319:06:093
264909190,3phc2sys0-21swapper/320:16:163
264909190,2phc2sys0-21swapper/321:51:243
264909190,2phc2sys0-21swapper/320:40:383
264909190,2phc2sys0-21swapper/319:56:143
264909190,2phc2sys0-21swapper/319:51:133
264909190,2phc2sys0-21swapper/319:41:113
264909190,2phc2sys0-21swapper/300:25:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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