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2026-05-25 - 01:31
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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 Sun May 24, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3581626993121,5cyclictest4040481-21latency_hist12:30:020
3581638992825,1cyclictest0-21swapper/212:15:002
3581626992817,5cyclictest0-21swapper/011:25:000
3581626992514,6cyclictest3791341-21/usr/sbin/munin09:49:590
3581638992421,1cyclictest0-21swapper/207:50:022
3581638992420,2cyclictest0-21swapper/212:35:022
3581626992421,2cyclictest3969398-21cat11:45:010
3581626992421,2cyclictest3591767-21kthreadcore07:20:000
3581626992415,4cyclictest0-21swapper/009:10:020
3581626992412,7cyclictest3778454-21kthreadcore09:40:020
3581629992320,2cyclictest3754749-21/usr/sbin/munin09:25:021
3581629992320,2cyclictest3692766-21grep08:40:001
3581629992319,3cyclictest3827634-1atopacctd11:15:011
3581629992317,1cyclictest134050irq/121-eno107:29:551
3581629992317,1cyclictest134050irq/121-eno107:29:551
3581629992313,3cyclictest0-21swapper/110:10:011
3581626992320,2cyclictest3992829-21munin-run12:00:020
3581626992320,2cyclictest3946556-21systemctl11:30:010
3581626992320,2cyclictest3872156-21kthreadcore10:40:030
3581626992320,2cyclictest3606113-21systemd-run07:30:020
3581626992320,2cyclictest3606113-21systemd-run07:30:020
3581626992312,6cyclictest0-21swapper/009:29:380
3581638992219,1cyclictest0-21swapper/212:30:012
3581629992219,2cyclictest3746555-21cut09:20:011
3581629992219,2cyclictest3724864-21cron09:05:001
3581629992219,2cyclictest3683502-21kthreadcore08:30:011
3581629992219,2cyclictest1326-21systemd-logind09:50:021
3581629992216,2cyclictest134050irq/121-eno110:40:031
358162699229,5cyclictest0-21swapper/012:39:560
3581626992219,2cyclictest3930692-21kthreadcore11:20:020
3581626992219,2cyclictest3877453-21irqrtprio10:45:010
3581626992219,2cyclictest3718224-21apt-key09:00:010
3581626992219,2cyclictest3692918-21kthreadcore08:40:000
3581626992217,4cyclictest3641721-21grep08:00:000
3581626992215,6cyclictest0-21swapper/008:20:020
3581626992213,5cyclictest4042649-21mailstats12:30:070
3581626992213,5cyclictest0-21swapper/011:00:010
3581626992211,6cyclictest0-21swapper/008:34:580
3581638992119,1cyclictest0-21swapper/210:55:022
3581638992119,1cyclictest0-21swapper/207:40:012
3581638992118,1cyclictest0-21swapper/211:55:012
3581638992118,1cyclictest0-21swapper/210:40:012
3581638992118,1cyclictest0-21swapper/209:40:002
3581629992118,2cyclictest3980080-21cut11:50:031
3581629992118,2cyclictest3674008-21irqrtprio08:25:011
3581629992118,2cyclictest3593127-21sort07:20:011
3581629992118,2cyclictest0-21swapper/112:40:021
3581629992115,2cyclictest134050irq/121-eno112:30:031
358162699219,5cyclictest3851698-21mta-sts-daemon12:10:060
358162699214,7cyclictest0-21swapper/009:19:550
358162699213,7cyclictest0-21swapper/011:49:540
3581626992118,2cyclictest3963242-21kthreadcore11:40:010
3581626992118,2cyclictest3824753-21kthreadcore10:10:010
3581626992118,2cyclictest0-21swapper/010:50:000
3581626992110,4cyclictest3861670-21irqcore10:35:000
3581626992110,4cyclictest3672732-21tail08:24:560
2649091210,2phc2sys0-21swapper/312:34:593
3581638992018,1cyclictest0-21swapper/211:45:032
3581638992018,1cyclictest0-21swapper/210:10:032
3581638992018,1cyclictest0-21swapper/208:40:022
3581638992017,1cyclictest0-21swapper/211:20:012
3581638992017,1cyclictest0-21swapper/210:20:012
3581629992017,2cyclictest4030260-21latency_hist12:25:001
3581629992017,2cyclictest3984942-21irqrtprio11:55:011
3581629992017,2cyclictest3807942-21ssh10:00:001
3581629992017,2cyclictest3667055-21apt-key08:20:011
3581629992016,3cyclictest3863790-21kthreadcore10:35:031
3581629992016,3cyclictest3581802-21tr07:10:011
358162699209,4cyclictest3628326-21tail07:49:560
358162699208,6cyclictest0-21swapper/011:09:530
3581626992018,1cyclictest0-21swapper/009:05:010
3581626992017,2cyclictest3851300-21grep10:25:080
3581626992017,2cyclictest3827634-1atopacctd10:55:030
3581626992017,2cyclictest0-21swapper/009:15:020
3581626992013,6cyclictest3804200-21kthreadcore09:55:040
3581626992012,4cyclictest1996-21runrttasks10:01:470
38620552190,3sleep30-21swapper/310:35:013
3581638991917,1cyclictest0-21swapper/211:50:012
3581638991917,1cyclictest0-21swapper/209:00:022
3581638991916,1cyclictest0-21swapper/211:30:012
3581638991916,1cyclictest0-21swapper/211:25:012
3581638991916,1cyclictest0-21swapper/210:20:042
3581629991916,2cyclictest3894456-21latency_hist10:55:021
3581629991916,2cyclictest3818448-21latency_hist10:05:031
3581629991916,2cyclictest3763736-21kthreadcore09:30:021
3581629991916,2cyclictest3700393-21kthreadcore08:45:011
3581629991916,2cyclictest3636086-21kthreadcore07:55:021
3581629991916,2cyclictest1326-21systemd-logind12:05:011
3581629991916,2cyclictest0-21swapper/111:25:011
3581629991915,3cyclictest3881808-21switchtime10:45:081
3581629991915,3cyclictest3687281-21kthreadcore08:35:011
3581629991914,1cyclictest383433398rtkit-daemon12:10:541
3581629991913,2cyclictest134050irq/121-eno111:19:541
358162699193,6cyclictest1290-21dbus-daemon07:15:010
3581626991916,2cyclictest3956188-21kthreadcore11:35:020
3581626991916,2cyclictest0-21swapper/012:25:020
3581626991916,2cyclictest0-21swapper/012:10:000
3581626991916,2cyclictest0-21swapper/011:05:010
3581626991916,2cyclictest0-21swapper/007:55:000
3581626991916,2cyclictest0-21swapper/007:25:010
2649091190,6phc2sys0-21swapper/307:54:553
3581638991816,1cyclictest0-21swapper/211:00:002
3581638991816,1cyclictest0-21swapper/209:25:002
3581638991815,1cyclictest0-21swapper/212:15:062
3581638991815,1cyclictest0-21swapper/211:40:012
3581638991815,1cyclictest0-21swapper/209:50:012
3581638991815,1cyclictest0-21swapper/209:30:002
3581638991815,1cyclictest0-21swapper/208:45:012
358162999189,3cyclictest0-21swapper/110:19:541
358162999189,2cyclictest0-21swapper/110:14:541
358162999186,7cyclictest3730784-21sshd09:09:591
358162999181,6cyclictest0-21swapper/110:35:481
3581629991815,2cyclictest3957362-21kthreadcore11:35:021
3581629991815,2cyclictest3787186-21cut09:45:031
3581629991815,2cyclictest3787186-21cut09:45:021
3581629991815,2cyclictest3769434-21irqcore09:35:001
3581629991815,2cyclictest3701795-21kthreadcore08:45:021
3581629991815,2cyclictest3655086-21latency_hist08:10:011
3581629991815,2cyclictest3622261-21cstates07:44:561
3581629991815,2cyclictest3617458-21kthreadcore07:40:011
3581629991815,2cyclictest0-21swapper/109:15:021
3581629991815,2cyclictest0-21swapper/107:15:021
3581629991814,3cyclictest3902519-21kthreadcore11:00:051
3581629991814,3cyclictest3799870-21latency_hist09:55:001
3581629991813,4cyclictest3960491-21fschecks_time11:39:571
3581629991813,4cyclictest3609774-21gltestperf07:34:581
3581629991811,2cyclictest134050irq/121-eno107:24:551
3581629991810,2cyclictest383433398rtkit-daemon11:57:341
358162699188,4cyclictest0-21swapper/007:39:550
358162699184,9cyclictest0-21swapper/011:50:080
3581626991816,1cyclictest0-21swapper/008:10:010
3581626991815,2cyclictest3848664-21kthreadcore10:25:020
3581626991815,2cyclictest3832613-21kthreadcore10:15:010
3581626991815,2cyclictest3753161-21tr09:24:570
3581626991815,2cyclictest3711697-21interrupts08:55:010
3581626991815,2cyclictest3707400-21kthreadcore08:50:020
3581626991815,2cyclictest3626186-21kthreadcore07:45:020
3581626991815,2cyclictest0-21swapper/012:05:010
3581626991815,2cyclictest0-21swapper/008:45:010
2649091180,2phc2sys0-21swapper/310:57:233
2649091180,2phc2sys0-21swapper/309:12:573
3581638991715,1cyclictest0-21swapper/212:05:002
3581638991715,1cyclictest0-21swapper/210:30:032
3581638991715,1cyclictest0-21swapper/209:55:012
3581638991715,1cyclictest0-21swapper/208:35:022
3581638991715,1cyclictest0-21swapper/207:55:012
3581638991715,1cyclictest0-21swapper/207:45:012
3581638991715,1cyclictest0-21swapper/207:30:022
3581638991715,1cyclictest0-21swapper/207:30:022
3581638991715,1cyclictest0-21swapper/207:15:012
3581638991714,1cyclictest0-21swapper/209:45:002
3581638991714,1cyclictest0-21swapper/209:45:002
3581638991714,1cyclictest0-21swapper/208:25:002
3581638991713,2cyclictest0-21swapper/212:10:002
358162999176,7cyclictest3832607-21kworker/u16:1+xprtiod10:23:311
358162999176,7cyclictest3706458-21kworker/u16:2+xprtiod11:05:201
3581629991714,2cyclictest4031052-21kthreadcore12:25:031
3581629991714,2cyclictest4007124-21fschecks_count12:09:571
3581629991714,2cyclictest3946568-21kthreadcore11:30:011
3581629991714,2cyclictest3827634-1atopacctd11:42:591
3581629991714,2cyclictest3774007-21cut09:35:071
3581629991714,2cyclictest3660606-21cut08:15:001
3581629991714,2cyclictest3630112-21kthreadcore07:50:021
3581629991713,3cyclictest3848482-21kthreadcore10:25:031
3581629991713,3cyclictest3714691-21kthreadcore08:55:031
358162699171,7cyclictest3649956-21grep08:05:010
3581626991715,1cyclictest3683888-21/usr/sbin/munin08:30:010
2649091170,2phc2sys0-21swapper/308:40:013
3581638991614,1cyclictest0-21swapper/210:45:012
3581638991614,1cyclictest0-21swapper/210:00:032
3581638991614,1cyclictest0-21swapper/209:35:002
3581638991614,1cyclictest0-21swapper/208:50:022
3581638991614,1cyclictest0-21swapper/208:10:012
3581638991614,1cyclictest0-21swapper/207:10:022
3581638991613,1cyclictest0-21swapper/211:34:592
3581638991613,1cyclictest0-21swapper/211:09:562
3581638991613,1cyclictest0-21swapper/207:19:562
3581638991611,3cyclictest0-21swapper/210:27:442
3581629991613,2cyclictest4019364-21/usr/sbin/munin12:15:041
3581629991613,2cyclictest3894653-21kthreadcore10:55:021
3581629991612,3cyclictest3708141-21kthreadcore08:50:021
358162699167,3cyclictest3731505-21diskmemload09:31:000
358162699163,4cyclictest3832613-21kthreadcore10:15:030
3581626991613,2cyclictest4022444-21gltestperf12:19:590
3581626991613,2cyclictest3781673-21mailstats09:40:070
3581626991613,2cyclictest3781673-21mailstats09:40:070
358162699160,8cyclictest3796870-21pmu-power09:50:050
358162699160,7cyclictest3609080-21/usr/sbin/munin07:34:570
2649091168,2phc2sys0-21swapper/309:00:033
2649091161,2phc2sys0-21swapper/312:03:533
2649091161,2phc2sys0-21swapper/307:57:583
2649091160,5phc2sys0-21swapper/310:09:493
2649091160,2phc2sys0-21swapper/311:45:253
2649091160,2phc2sys0-21swapper/311:09:543
2649091160,2phc2sys0-21swapper/309:15:373
3581638991513,1cyclictest0-21swapper/212:20:032
3581638991513,1cyclictest0-21swapper/211:10:022
3581638991513,1cyclictest0-21swapper/209:05:002
3581638991513,1cyclictest0-21swapper/208:20:012
3581638991513,1cyclictest0-21swapper/208:05:012
3581638991513,1cyclictest0-21swapper/208:00:002
3581638991513,1cyclictest0-21swapper/207:34:562
3581638991512,1cyclictest0-21swapper/207:25:012
3581629991512,2cyclictest3645050-21kthreadcore08:00:031
3581629991511,3cyclictest3637475-21kthreadcore07:55:031
358162699151,6cyclictest0-21swapper/011:10:520
358162699150,6cyclictest3653410-21/usr/sbin/munin08:10:080
2649091150,2phc2sys0-21swapper/308:55:023
36752342140,2sleep30-21swapper/308:25:023
358163899145,6cyclictest3659555-21chrt08:12:552
3581638991412,1cyclictest0-21swapper/212:36:372
3581638991412,1cyclictest0-21swapper/212:00:002
3581638991412,1cyclictest0-21swapper/211:04:592
3581638991412,1cyclictest0-21swapper/210:46:522
3581638991412,1cyclictest0-21swapper/210:15:032
3581638991412,1cyclictest0-21swapper/209:15:092
3581638991412,1cyclictest0-21swapper/209:15:012
3581638991412,1cyclictest0-21swapper/209:10:012
3581638991412,1cyclictest0-21swapper/208:54:552
3581638991412,1cyclictest0-21swapper/208:30:022
3581626991411,2cyclictest3582554-21missed_timers07:10:020
2649091140,2phc2sys0-21swapper/311:57:203
2649091140,2phc2sys0-21swapper/311:33:043
2649091140,2phc2sys0-21swapper/310:18:433
36726052130,4sleep30-21swapper/308:24:553
3581638991311,1cyclictest0-21swapper/210:05:022
2649091131,2phc2sys0-21swapper/311:30:023
2649091130,4phc2sys0-21swapper/307:49:553
2649091130,2phc2sys0-21swapper/312:29:263
2649091130,2phc2sys0-21swapper/312:07:303
2649091130,2phc2sys0-21swapper/311:50:453
2649091130,2phc2sys0-21swapper/311:24:493
2649091130,2phc2sys0-21swapper/311:13:533
2649091130,2phc2sys0-21swapper/310:48:533
2649091130,2phc2sys0-21swapper/309:54:553
2649091130,2phc2sys0-21swapper/309:20:233
2649091130,2phc2sys0-21swapper/309:00:113
2649091130,1phc2sys0-21swapper/308:45:133
2649091121,2phc2sys0-21swapper/309:34:543
2649091120,3phc2sys0-21swapper/308:19:553
2649091120,2phc2sys0-21swapper/311:15:593
2649091120,2phc2sys0-21swapper/311:00:513
2649091120,2phc2sys0-21swapper/310:10:573
2649091120,2phc2sys0-21swapper/310:00:233
2649091120,2phc2sys0-21swapper/309:59:593
2649091120,1phc2sys0-21swapper/312:24:173
2649091120,1phc2sys0-21swapper/312:17:443
2649091120,1phc2sys0-21swapper/311:36:233
2649091120,1phc2sys0-21swapper/310:23:363
2649091120,1phc2sys0-21swapper/307:32:023
2649091112,4phc2sys0-21swapper/307:44:533
2649091110,4phc2sys0-21swapper/309:25:083
2649091110,2phc2sys0-21swapper/311:43:063
2649091110,2phc2sys0-21swapper/310:54:553
2649091110,2phc2sys0-21swapper/310:35:183
2649091110,2phc2sys0-21swapper/309:50:013
2649091110,2phc2sys0-21swapper/309:44:363
2649091110,2phc2sys0-21swapper/309:44:363
2649091110,2phc2sys0-21swapper/308:00:033
2649091102,2phc2sys0-21swapper/312:37:203
2649091102,2phc2sys0-21swapper/308:09:163
2649091102,2phc2sys0-21swapper/307:20:033
2649091101,2phc2sys0-21swapper/310:26:173
2649091101,2phc2sys0-21swapper/309:36:103
2649091101,2phc2sys0-21swapper/309:05:133
2649091100,2phc2sys0-21swapper/310:40:473
2649091100,2phc2sys0-21swapper/308:42:123
2649091100,2phc2sys0-21swapper/307:14:553
264909190,2phc2sys0-21swapper/312:10:263
264909190,2phc2sys0-21swapper/308:30:053
264909190,2phc2sys0-21swapper/307:39:553
264909190,2phc2sys0-21swapper/307:15:033
264909190,1phc2sys0-21swapper/308:10:373
264909190,1phc2sys0-21swapper/307:25:493
264909190,1phc2sys0-21swapper/307:25:493
264909180,2phc2sys0-21swapper/307:05:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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