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2026-04-11 - 13:12
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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 highest latencies:
System rackeslot2.osadl.org (updated Sat Apr 11, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2555812990,2sleep30-21swapper/323:45:033
3093012380,2sleep30-21swapper/300:20:583
2693542320,3sleep30-21swapper/323:51:443
4062009992618,2cyclictest2868-21apt-get20:55:550
4062010992410,4cyclictest0-21swapper/100:20:541
4062010992316,3cyclictest76377-21grep21:46:031
4062009992311,7cyclictest0-21swapper/021:45:010
2649191230,2ptp4l0-21swapper/322:51:003
4062009992213,4cyclictest260763-21kthreadcore23:46:040
4062009992211,6cyclictest0-21swapper/022:46:040
424562210,1sleep10-21swapper/121:21:061
4062013992119,1cyclictest0-21swapper/200:25:002
4062013992118,1cyclictest0-21swapper/220:20:002
4062010992117,2cyclictest4069065-21timerwakeupswit19:15:021
4062010992117,2cyclictest4069065-21timerwakeupswit19:15:021
4062010992112,3cyclictest180425-21apt22:55:541
4062009992113,5cyclictest4062007-21cyclictest22:32:240
3151092210,2sleep00-21swapper/000:23:440
2436742210,1sleep1243680-21cut23:36:031
2224752210,2sleep1222432-21ssh23:21:031
4062013992018,1cyclictest0-21swapper/220:40:022
4062013992017,1cyclictest0-21swapper/223:10:002
4062013992017,1cyclictest0-21swapper/221:35:002
4062013992017,1cyclictest0-21swapper/219:36:082
4062010992017,2cyclictest74800-21systemd21:45:011
4062010992017,2cyclictest4158516-21apt-key20:25:011
4062010992017,2cyclictest0-21swapper/119:26:021
4062010992016,2cyclictest0-21swapper/121:00:021
406201099201,5cyclictest4133725-21apt-get20:05:551
4062010992014,2cyclictest134050irq/121-eno122:42:061
4062010992013,3cyclictest123527-21kthreadcore22:16:051
406200999208,6cyclictest0-21swapper/023:30:560
4062009992016,3cyclictest32600-21kthreadcore21:16:040
4062009992014,2cyclictest383433398rtkit-daemon00:03:350
4062009992012,7cyclictest0-21swapper/023:35:580
4062009992012,5cyclictest159621-21kthreadcore22:41:020
383433398200,3rtkit-daemon3851705-21mta-sts-daemon19:18:350
2649191200,1ptp4l0-21swapper/319:36:023
26490912010,3phc2sys0-21swapper/319:26:043
2024932200,3sleep1202495-21grep23:10:011
41028592190,1sleep00-21swapper/019:40:580
4062013991917,1cyclictest0-21swapper/200:30:022
4062013991916,1cyclictest0-21swapper/223:45:012
4062013991916,1cyclictest0-21swapper/222:21:032
406201099198,5cyclictest1290-21dbus-daemon19:45:011
4062010991916,2cyclictest172376-21/usr/sbin/munin22:50:001
4062010991913,2cyclictest134050irq/121-eno100:31:001
4062010991912,3cyclictest83118-21cstates21:50:581
4062009991916,2cyclictest3851875-21systemd-journal00:00:000
4062009991916,2cyclictest202393-21systemd-run23:10:010
4062009991916,2cyclictest133172-21mailstats22:21:080
4062009991915,3cyclictest1326-21systemd-logind19:25:000
4062009991915,2cyclictest232517-21systemd23:30:020
4062009991911,7cyclictest0-21swapper/000:15:010
4062009991910,7cyclictest0-21swapper/023:15:000
383433398190,3rtkit-daemon3851703-21mta-sts-daemon19:35:180
4062013991815,1cyclictest0-21swapper/221:49:242
4062013991815,1cyclictest0-21swapper/221:10:002
4062013991815,1cyclictest0-21swapper/221:10:002
406201099186,5cyclictest0-21swapper/122:05:541
4062010991815,2cyclictest54899-21kthreadcore21:31:051
4062010991815,2cyclictest4062007-21cyclictest00:26:001
4062010991815,2cyclictest3824565-21in:imuxsock23:55:011
4062010991815,2cyclictest236096-21kthreadcore23:31:041
4062010991815,2cyclictest1290-21dbus-daemon23:03:581
4062010991814,2cyclictest3827634-1atopacctd00:20:011
4062010991812,2cyclictest332453-21kthreadcore00:36:021
406200999187,6cyclictest0-21swapper/000:06:040
4062009991815,2cyclictest4133369-21systemd-run20:05:000
4062009991815,2cyclictest1290-21dbus-daemon21:35:000
4062009991814,3cyclictest3851703-21mta-sts-daemon19:55:020
4062009991810,7cyclictest323886-21cpuspeed00:30:550
406200999180,9cyclictest181533-21grep22:56:000
2649091181,5phc2sys0-21swapper/319:05:563
2649091180,1phc2sys0-21swapper/300:26:053
4062013991714,1cyclictest0-21swapper/223:15:552
4062013991714,1cyclictest0-21swapper/221:25:002
4062013991714,1cyclictest0-21swapper/219:35:002
4062013991714,1cyclictest0-21swapper/219:15:012
4062013991714,1cyclictest0-21swapper/219:15:012
4062013991713,2cyclictest0-21swapper/220:00:232
4062010991714,2cyclictest255119-21latency_hist23:45:001
4062010991714,2cyclictest212183-21kthreadcore23:16:011
4062010991714,2cyclictest1-21systemd21:30:011
4062010991714,2cyclictest0-21swapper/121:20:021
4062010991714,2cyclictest0-21swapper/121:15:001
4062010991710,6cyclictest3851704-21mta-sts-daemon20:35:581
406200999179,7cyclictest3851705-21mta-sts-daemon22:18:140
406200999178,5cyclictest0-21swapper/022:28:150
406200999176,6cyclictest0-21swapper/021:50:570
406200999175,5cyclictest331097-21/usr/sbin/munin00:36:070
4062009991714,2cyclictest51908-21sh21:30:000
4062009991714,2cyclictest189031-21grep23:01:020
4062009991714,2cyclictest104693-21sh22:05:020
4062009991711,5cyclictest217626-21systemd-run23:20:020
406200999171,15cyclictest0-21swapper/022:37:510
2649091170,4phc2sys0-21swapper/321:24:193
2649091170,2phc2sys0-21swapper/300:37:113
2649091170,2phc2sys0-21swapper/300:00:233
4062013991613,2cyclictest0-21swapper/219:45:022
4062013991613,1cyclictest0-21swapper/223:15:002
4062013991613,1cyclictest0-21swapper/222:40:002
4062013991613,1cyclictest0-21swapper/222:06:362
4062013991613,1cyclictest0-21swapper/222:01:032
4062013991613,1cyclictest0-21swapper/221:11:032
4062013991613,1cyclictest0-21swapper/200:39:082
4062013991612,2cyclictest0-21swapper/220:50:562
4062013991612,2cyclictest0-21swapper/200:04:552
4062010991613,2cyclictest4185314-21irqcore20:46:011
4062010991613,2cyclictest4150316-21kthreadcore20:16:031
4062010991613,2cyclictest1426-21gdbus20:41:071
4062010991613,2cyclictest127859-21acpi22:20:551
4062010991613,2cyclictest0-21swapper/123:15:011
4062010991612,3cyclictest3851702-21mta-sts-daemon19:30:531
4062010991612,3cyclictest270518-21kworker/u16:0+nfsiod00:00:171
406200999168,7cyclictest0-21swapper/000:20:000
4062009991613,2cyclictest15271-21debian-sa121:05:000
4062009991612,3cyclictest4164959-21kworker/u16:3+nfsiod21:23:430
4062009991612,3cyclictest3851702-21mta-sts-daemon23:41:010
4062009991612,3cyclictest316881-21gltestperf00:26:000
406200999161,12cyclictest4114710-21munin-run19:50:010
2649091160,2phc2sys0-21swapper/322:22:513
2649091160,1phc2sys0-21swapper/319:13:093
2649091160,1phc2sys0-21swapper/319:13:093
4062013991513,1cyclictest0-21swapper/223:45:582
4062013991513,1cyclictest0-21swapper/223:35:012
4062013991513,1cyclictest0-21swapper/223:01:042
4062013991513,1cyclictest0-21swapper/222:55:012
4062013991513,1cyclictest0-21swapper/220:45:022
4062013991512,1cyclictest0-21swapper/223:51:002
4062013991512,1cyclictest0-21swapper/222:56:022
4062013991512,1cyclictest0-21swapper/222:16:092
4062013991512,1cyclictest0-21swapper/221:56:032
4062013991512,1cyclictest0-21swapper/220:35:012
4062013991512,1cyclictest0-21swapper/220:26:042
4062013991512,1cyclictest0-21swapper/219:55:012
4062013991512,1cyclictest0-21swapper/219:26:072
4062013991512,1cyclictest0-21swapper/219:25:002
4062013991512,1cyclictest0-21swapper/200:20:002
4062013991512,1cyclictest0-21swapper/200:11:042
4062013991511,2cyclictest0-21swapper/221:38:582
406201099153,6cyclictest0-21swapper/119:21:071
4062010991512,2cyclictest93179-21kthreadcore21:56:031
4062010991512,2cyclictest4145981-21sh20:15:011
4062010991512,2cyclictest4122482-21kthreadcore19:56:011
4062010991512,2cyclictest4109913-21kthreadcore19:46:031
4062010991512,2cyclictest3851703-21mta-sts-daemon22:52:031
4062010991512,2cyclictest151197-21idleruntime22:35:591
4062010991512,2cyclictest127454-21kworker/u16:1-events_unbound22:26:031
4062010991511,3cyclictest127454-21kworker/u16:1+nfsiod22:31:451
4062010991510,4cyclictest1-21systemd20:27:231
406200999158,6cyclictest0-21swapper/022:11:070
406200999157,1cyclictest0-21swapper/021:46:050
406200999156,5cyclictest0-21swapper/021:35:550
406200999155,6cyclictest0-21swapper/020:33:280
406200999151,9cyclictest0-21swapper/022:50:570
4062009991513,1cyclictest1996-21runrttasks22:00:490
4062009991512,2cyclictest4177817-21latency_hist20:40:010
4062009991512,2cyclictest4139647-21latency_hist20:10:000
4062009991512,2cyclictest4127200-21sh20:00:010
4062009991512,2cyclictest3827634-1atopacctd21:11:030
4062009991512,2cyclictest263243-21ssh23:50:070
4062009991512,2cyclictest1296-21polkitd20:55:010
4062009991512,2cyclictest1290-21dbus-daemon20:50:010
4062009991511,3cyclictest93179-21kthreadcore21:56:040
4062009991511,3cyclictest4157303-21latency20:21:040
2649091150,4phc2sys0-21swapper/319:45:563
2649091150,2phc2sys0-21swapper/323:17:533
2649091150,2phc2sys0-21swapper/320:07:273
2649091150,1phc2sys0-21swapper/323:28:563
406201399141,7cyclictest0-21swapper/221:40:552
406201399141,6cyclictest0-21swapper/222:29:592
4062013991412,1cyclictest0-21swapper/219:15:592
4062013991411,2cyclictest0-21swapper/200:30:552
4062013991411,1cyclictest0-21swapper/223:35:592
4062013991411,1cyclictest0-21swapper/222:40:572
4062013991411,1cyclictest0-21swapper/222:10:592
4062013991411,1cyclictest0-21swapper/221:29:082
4062013991411,1cyclictest0-21swapper/220:56:012
4062013991411,1cyclictest0-21swapper/220:21:062
4062013991411,1cyclictest0-21swapper/220:07:302
4062013991411,1cyclictest0-21swapper/200:06:042
4062013991410,2cyclictest0-21swapper/221:04:232
406201099148,5cyclictest4119586-21tr19:51:041
406201099146,3cyclictest0-21swapper/123:30:011
406201099145,1cyclictest491rcuog/222:10:591
406201099142,1cyclictest491rcuog/220:04:381
4062010991411,2cyclictest4191600-21irqcore20:51:001
4062010991411,2cyclictest4076550-21unixbench_singl19:16:111
4062010991411,2cyclictest4062074-21systemd-run19:10:011
4062010991411,2cyclictest3841370-21avahi-daemon22:03:281
4062010991411,2cyclictest298573-21grep00:11:061
4062010991411,2cyclictest286304-21cpu00:05:581
4062010991411,2cyclictest20632-21pmu-power21:06:061
4062010991411,2cyclictest20632-21pmu-power21:06:061
4062010991411,2cyclictest1290-21dbus-daemon23:50:011
4062010991410,3cyclictest3827634-1atopacctd20:31:041
406201099140,10cyclictest276843-21ssh23:56:451
406200999149,4cyclictest3851704-21mta-sts-daemon23:20:160
406200999145,2cyclictest0-21swapper/019:25:570
406200999144,5cyclictest19737-21cut21:06:030
406200999144,5cyclictest19737-21cut21:06:030
4062009991411,2cyclictest4178925-21if_enp1s0.820:41:010
4062009991411,2cyclictest4165058-21latency_hist20:30:010
4062009991411,2cyclictest4140697-21gltestperf20:11:000
4062009991411,2cyclictest4092707-21kthreadcore19:31:020
4062009991411,2cyclictest4062285-21/usr/sbin/munin19:10:570
4062009991411,2cyclictest4062285-21/usr/sbin/munin19:10:570
2649091147,3phc2sys0-21swapper/322:25:573
2649091141,3phc2sys0-21swapper/322:40:553
2649091140,4phc2sys0-21swapper/322:37:533
2649091140,2phc2sys0-21swapper/323:02:433
2649091140,2phc2sys0-21swapper/322:06:263
2649091140,2phc2sys0-21swapper/321:57:233
2649091140,2phc2sys0-21swapper/321:26:303
2649091140,2phc2sys0-21swapper/321:20:013
2649091140,1phc2sys0-21swapper/320:51:043
2649091140,1phc2sys0-21swapper/320:31:243
4062013991311,1cyclictest0-21swapper/223:56:012
4062013991311,1cyclictest0-21swapper/223:20:242
4062013991311,1cyclictest0-21swapper/222:45:022
4062013991311,1cyclictest0-21swapper/221:15:222
4062013991311,1cyclictest0-21swapper/219:47:452
4062013991310,1cyclictest0-21swapper/222:30:452
4062013991310,1cyclictest0-21swapper/221:55:022
4062010991311,1cyclictest3851705-21mta-sts-daemon19:35:571
4062010991310,2cyclictest59318-21sh21:35:031
4062010991310,2cyclictest10540-21irqrtprio21:01:011
406200999131,7cyclictest4146196-21/usr/sbin/munin20:15:590
2649091130,2phc2sys0-21swapper/323:34:373
2649091130,2phc2sys0-21swapper/321:52:393
2649091130,2phc2sys0-21swapper/321:31:293
2649091130,2phc2sys0-21swapper/320:10:563
2649091130,1phc2sys0-21swapper/321:01:303
406201399127,3cyclictest0-21swapper/220:11:082
4062013991210,1cyclictest0-21swapper/223:26:022
4062013991210,1cyclictest0-21swapper/220:46:012
4062013991210,1cyclictest0-21swapper/219:56:022
2649091121,5phc2sys0-21swapper/322:30:563
2649091121,2phc2sys0-21swapper/323:46:443
406200999114,5cyclictest1290-21dbus-daemon19:10:020
2649091112,2phc2sys0-21swapper/323:23:593
2649091111,2phc2sys0-21swapper/320:35:573
2649091111,2phc2sys0-21swapper/300:11:103
2649091110,4phc2sys0-21swapper/319:52:543
2649091110,2phc2sys0-21swapper/322:59:383
2649091110,2phc2sys0-21swapper/320:41:033
2649091110,2phc2sys0-21swapper/300:10:023
2649091110,1phc2sys0-21swapper/320:59:373
2649091110,1phc2sys0-21swapper/320:21:463
406201399108,1cyclictest0-21swapper/219:10:012
2649091101,2phc2sys0-21swapper/321:46:043
2649091101,2phc2sys0-21swapper/320:46:033
2649091100,3phc2sys0-21swapper/323:55:543
2649091100,2phc2sys0-21swapper/323:10:093
2649091100,2phc2sys0-21swapper/323:08:443
2649091100,2phc2sys0-21swapper/322:47:243
2649091100,2phc2sys0-21swapper/322:18:503
2649091100,2phc2sys0-21swapper/322:02:193
2649091100,2phc2sys0-21swapper/320:25:553
2649091100,2phc2sys0-21swapper/300:15:113
2649091100,1phc2sys0-21swapper/321:08:273
2649091100,1phc2sys0-21swapper/321:08:273
264909193,2phc2sys0-21swapper/321:40:453
264909192,1phc2sys0-21swapper/320:18:183
264909191,3phc2sys0-21swapper/319:55:553
264909191,2phc2sys0-21swapper/322:10:083
264909191,2phc2sys0-21swapper/321:10:073
264909190,2phc2sys0-21swapper/323:35:023
264909190,2phc2sys0-21swapper/321:35:133
264909190,2phc2sys0-21swapper/320:04:553
264909190,2phc2sys0-21swapper/319:40:593
264909190,2phc2sys0-21swapper/319:30:293
264909190,2phc2sys0-21swapper/319:20:553
264909190,2phc2sys0-21swapper/319:15:103
264909190,2phc2sys0-21swapper/300:30:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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