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2026-06-26 - 16:17
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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 Fri Jun 26, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39785052430,2sleep30-21swapper/311:40:023
3611905993330,2cyclictest765-1atopacctd12:00:011
3611906992724,1cyclictest0-21swapper/211:55:002
3611905992614,8cyclictest3880697-21/usr/sbin/munin10:35:101
3611906992522,1cyclictest0-21swapper/210:25:002
3611905992522,2cyclictest3777288-21ssh09:25:011
3611905992518,2cyclictest191rcu_preempt10:00:021
3611905992517,2cyclictest67250irq/126-eno110:10:011
3611905992419,4cyclictest3970826-21gltestperf11:35:021
3611904992421,2cyclictest3895974-21cstates10:45:010
3611905992320,2cyclictest3770050-21sed09:20:001
3611905992311,3cyclictest191rcu_preempt08:34:581
3153791231,2phc2sys0-21swapper/310:19:573
3611905992216,2cyclictest191rcu_preempt09:00:011
3611905992216,2cyclictest191rcu_preempt09:00:011
3611905992210,3cyclictest3953080-21timerwakeupswit11:20:111
3611905992210,3cyclictest191rcu_preempt09:44:581
361190499228,6cyclictest0-21swapper/010:40:030
3611904992219,2cyclictest3700244-21basename08:25:010
3611904992214,7cyclictest0-21swapper/009:40:020
3611904992211,6cyclictest0-21swapper/011:35:040
3611906992119,1cyclictest0-21swapper/211:10:032
3611906992119,1cyclictest0-21swapper/211:10:032
361190599219,6cyclictest0-21swapper/110:58:441
3611905992118,2cyclictest3926199-21grep11:05:021
3611905992118,2cyclictest3669676-21grep08:00:011
3611905992116,1cyclictest191rcu_preempt12:25:091
3611905992115,2cyclictest191rcu_preempt08:50:041
3611905992115,2cyclictest191rcu_preempt07:20:061
3611905992115,2cyclictest191rcu_preempt07:20:061
3611905992115,1cyclictest191rcu_preempt10:00:071
3611905992114,6cyclictest3926821-21kernelversion11:05:041
3611905992114,6cyclictest3926821-21kernelversion11:05:041
3611905992114,2cyclictest191rcu_preempt10:20:031
3611905992111,6cyclictest36-21ksoftirqd/108:04:591
3611905992110,6cyclictest36-21ksoftirqd/109:30:021
3611905992110,6cyclictest36-21ksoftirqd/109:10:011
361190599210,3cyclictest3999708-21apt-get11:54:561
3611904992118,2cyclictest3712441-21grep08:35:010
3611904992118,2cyclictest0-21swapper/009:30:020
3611906992017,1cyclictest0-21swapper/211:35:042
361190599209,7cyclictest36-21ksoftirqd/112:20:021
361190599208,7cyclictest36-21ksoftirqd/107:40:021
361190599205,9cyclictest4009839-21cat12:00:051
361190599204,10cyclictest3727807-21tr08:45:071
3611905992017,2cyclictest3694461-21/usr/sbin/munin08:20:011
3611905992014,2cyclictest191rcu_preempt07:30:001
3611905992013,3cyclictest36-21ksoftirqd/110:15:021
3611905992013,3cyclictest274-21systemd-journal10:32:561
3611905992013,2cyclictest3754987-21diskmemload11:28:551
3611905992012,3cyclictest36-21ksoftirqd/111:49:561
3611905992012,2cyclictest36-21ksoftirqd/109:50:051
3611905992012,1cyclictest191rcu_preempt07:15:571
3611905992010,2cyclictest36-21ksoftirqd/112:30:041
3611905992010,2cyclictest191rcu_preempt09:39:571
3611904992018,1cyclictest3682119-21/usr/sbin/munin08:10:020
3611904992017,2cyclictest4068206-21sort12:40:030
3611904992017,2cyclictest3903585-21entropy10:50:010
3611904992017,2cyclictest3821358-21updatedb.plocat09:55:010
3611904992017,2cyclictest3730756-21perf08:50:010
3611904992017,2cyclictest3617362-21/usr/sbin/munin07:15:010
3611904992015,4cyclictest4041581-21kthreadcore12:20:070
3611904992014,5cyclictest1242-21mta-sts-daemon12:09:590
3611904992012,4cyclictest3754987-21diskmemload11:45:470
361190499200,4cyclictest4006825-21ssh11:59:110
3153791201,4phc2sys0-21swapper/311:24:563
3611906991915,2cyclictest0-21swapper/209:30:032
361190599199,6cyclictest36-21ksoftirqd/109:45:061
361190599199,4cyclictest0-21swapper/108:42:091
361190599197,7cyclictest36-21ksoftirqd/109:15:001
361190599195,8cyclictest3858003-21sh10:18:351
361190599193,6cyclictest3787467-21kthreadcore09:30:061
361190599192,11cyclictest4040323-21cut12:20:061
3611905991916,2cyclictest3719000-21if_eno108:40:031
3611905991916,2cyclictest3651139-21tr07:45:011
3611905991916,2cyclictest0-21swapper/110:45:031
3611905991913,2cyclictest36-21ksoftirqd/111:40:011
3611905991913,2cyclictest36-21ksoftirqd/107:35:021
3611905991913,2cyclictest191rcu_preempt11:40:041
3611905991912,3cyclictest36-21ksoftirqd/112:05:031
3611905991912,1cyclictest191rcu_preempt08:25:051
3611905991910,3cyclictest3613618-21cut07:10:051
361190499199,6cyclictest0-21swapper/009:34:070
361190499198,6cyclictest0-21swapper/010:34:070
361190499193,8cyclictest3807127-21turbostat09:45:010
3611904991916,2cyclictest4015351-21fschecks_time12:05:010
3611904991916,2cyclictest3694542-21idleruntime08:20:020
3611904991916,2cyclictest1-21systemd11:15:010
3611904991910,5cyclictest0-21swapper/010:55:020
361190499190,3cyclictest3999307-21ssh11:53:490
361190699181,8cyclictest0-21swapper/207:50:012
3611906991816,1cyclictest0-21swapper/211:25:032
3611906991816,1cyclictest0-21swapper/211:00:012
3611906991816,1cyclictest0-21swapper/210:55:022
3611906991816,1cyclictest0-21swapper/210:15:032
3611906991815,1cyclictest0-21swapper/212:25:092
3611906991815,1cyclictest0-21swapper/212:05:012
3611906991815,1cyclictest0-21swapper/209:05:012
3611906991815,1cyclictest0-21swapper/209:05:012
3611906991815,1cyclictest0-21swapper/208:15:062
3611906991815,1cyclictest0-21swapper/208:15:012
3611906991815,1cyclictest0-21swapper/207:25:022
3611906991815,1cyclictest0-21swapper/207:25:022
3611906991814,2cyclictest0-21swapper/210:34:582
361190599188,6cyclictest36-21ksoftirqd/108:20:091
361190599187,2cyclictest0-21swapper/111:10:121
361190599185,4cyclictest36-21ksoftirqd/107:45:061
361190599184,7cyclictest3899770-21kthreadcore10:45:081
361190599182,5cyclictest3686251-21phc2sys-jitter08:10:081
361190599182,3cyclictest0-21swapper/111:18:471
361190599182,10cyclictest3680054-21missed_timers08:05:071
3611905991813,1cyclictest191rcu_preempt10:27:121
3611905991811,3cyclictest36-21ksoftirqd/112:40:021
361190599181,11cyclictest3908622-21unixbench-2d10:50:111
3611905991810,3cyclictest3660929-21kthreadcore07:50:051
361190599180,15cyclictest3749065-21cat09:05:001
361190599180,15cyclictest3749065-21cat09:05:001
361190499187,2cyclictest191rcu_preempt09:49:580
361190499184,6cyclictest3909113-21kworker/u16:1+xprtiod11:33:040
3611904991815,2cyclictest3955866-21if_err_eno111:25:010
3611904991815,2cyclictest3926050-21latency_hist11:05:020
3611904991815,2cyclictest3777643-21grep09:25:020
3611904991815,2cyclictest3718868-21gltestperf08:40:020
3611904991815,2cyclictest3627905-21systemd-run07:25:030
3611904991815,2cyclictest3627905-21systemd-run07:25:030
3611904991815,2cyclictest1-21systemd09:20:030
3611904991811,3cyclictest3754987-21diskmemload10:14:120
40601172170,2sleep30-21swapper/312:35:013
3611906991715,1cyclictest0-21swapper/208:10:012
3611906991715,1cyclictest0-21swapper/208:05:022
3611906991715,1cyclictest0-21swapper/207:40:012
3611906991715,1cyclictest0-21swapper/207:15:022
3611906991714,2cyclictest0-21swapper/211:28:322
3611906991714,1cyclictest0-21swapper/211:45:002
3611906991714,1cyclictest0-21swapper/211:04:582
3611906991714,1cyclictest0-21swapper/210:45:012
3611906991714,1cyclictest0-21swapper/210:00:022
3611906991714,1cyclictest0-21swapper/208:40:012
3611906991714,1cyclictest0-21swapper/208:25:032
3611906991713,2cyclictest0-21swapper/212:20:022
361190599175,7cyclictest36-21ksoftirqd/107:10:021
3611905991711,2cyclictest191rcu_preempt12:10:071
3611904991714,2cyclictest660-21dbus-daemon12:30:010
3611904991714,2cyclictest3724914-21fschecks_time08:45:020
3611904991714,2cyclictest3627901-21kworker/u16:3-ext4-rsv-conversion07:55:010
3611904991714,2cyclictest0-21swapper/008:30:010
3611904991714,2cyclictest0-21swapper/007:50:010
3611904991714,2cyclictest0-21swapper/007:40:000
3611904991713,3cyclictest698-21in:imuxsock07:10:030
3611904991713,2cyclictest0-21swapper/012:15:010
3611904991711,5cyclictest3675199-21aten2.4-expect08:04:590
3611904991710,6cyclictest1242-21mta-sts-daemon10:03:120
3611904991710,2cyclictest0-21swapper/010:25:010
361190499170,6cyclictest4060551-21gdbus12:35:020
3153791170,2phc2sys0-21swapper/310:04:043
3153791170,2phc2sys0-21swapper/307:25:013
3153791170,2phc2sys0-21swapper/307:25:013
361190699166,5cyclictest0-21swapper/208:44:582
3611906991614,1cyclictest0-21swapper/209:30:042
3611906991614,1cyclictest0-21swapper/208:00:022
3611906991613,1cyclictest0-21swapper/212:34:052
3611906991613,1cyclictest0-21swapper/211:55:082
3611906991613,1cyclictest0-21swapper/211:45:062
3611906991613,1cyclictest0-21swapper/210:05:092
3611906991613,1cyclictest0-21swapper/209:00:012
3611906991613,1cyclictest0-21swapper/209:00:012
3611906991613,1cyclictest0-21swapper/207:30:012
3611906991611,1cyclictest0-21swapper/211:14:572
361190499169,6cyclictest1242-21mta-sts-daemon11:41:570
361190499169,6cyclictest0-21swapper/011:10:020
361190499169,6cyclictest0-21swapper/011:10:020
3611904991614,1cyclictest0-21swapper/007:35:020
3611904991613,2cyclictest3918580-21grep11:00:010
3611904991613,2cyclictest3755380-21latency_hist09:10:020
3611904991613,2cyclictest3749575-21irqcore09:05:020
3611904991613,2cyclictest3749575-21irqcore09:05:020
3611904991613,2cyclictest3621185-21sh07:20:020
3611904991613,2cyclictest0-21swapper/010:20:030
3611904991613,2cyclictest0-21swapper/010:00:020
3611904991610,5cyclictest1242-21mta-sts-daemon11:16:270
3611904991610,4cyclictest1-21systemd11:30:010
3153791161,2phc2sys0-21swapper/307:40:053
3153791160,2phc2sys0-21swapper/311:46:203
3153791160,2phc2sys0-21swapper/309:46:123
361190699151,6cyclictest0-21swapper/210:30:012
3611906991513,1cyclictest0-21swapper/212:10:032
3611906991513,1cyclictest0-21swapper/210:19:562
3611906991513,1cyclictest0-21swapper/209:55:042
3611906991513,1cyclictest0-21swapper/209:50:012
3611906991513,1cyclictest0-21swapper/209:35:032
3611906991512,2cyclictest0-21swapper/207:20:012
3611906991512,1cyclictest0-21swapper/211:15:112
3611906991512,1cyclictest0-21swapper/210:45:072
3611906991512,1cyclictest0-21swapper/209:20:082
3611906991512,1cyclictest0-21swapper/208:55:012
3611906991512,1cyclictest0-21swapper/208:25:012
361190499158,1cyclictest601rcuop/309:11:080
361190499154,7cyclictest0-21swapper/007:45:000
361190499154,2cyclictest191rcu_preempt08:50:030
3611904991512,2cyclictest3687943-21systemd-run08:15:010
3611904991512,2cyclictest3668079-21proc_pri07:55:100
3153791150,4phc2sys0-21swapper/308:49:573
3153791150,2phc2sys0-21swapper/309:40:133
361190699142,6cyclictest0-21swapper/208:50:012
3611906991412,1cyclictest0-21swapper/212:05:092
3611906991411,2cyclictest0-21swapper/210:04:192
3611906991411,1cyclictest0-21swapper/212:35:042
3611906991411,1cyclictest0-21swapper/209:15:052
3611906991411,1cyclictest0-21swapper/209:10:032
3611906991411,1cyclictest0-21swapper/208:34:052
3611906991411,1cyclictest0-21swapper/207:34:572
3611906991410,2cyclictest0-21swapper/209:05:062
361190499149,1cyclictest3871836-21ssh10:25:310
361190499148,1cyclictest492398rtkit-daemon08:59:410
361190499148,1cyclictest492398rtkit-daemon08:59:410
361190499147,1cyclictest601rcuop/310:07:030
3611904991411,2cyclictest4032911-21kthreadcore12:15:050
3153791148,2phc2sys0-21swapper/311:43:163
3153791141,5phc2sys0-21swapper/310:41:023
3153791141,4phc2sys0-21swapper/309:54:593
3153791140,3phc2sys0-21swapper/311:00:123
3153791140,2phc2sys0-21swapper/312:00:043
3153791140,2phc2sys0-21swapper/310:52:583
3153791140,2phc2sys0-21swapper/309:58:513
3153791140,2phc2sys0-21swapper/309:31:203
3153791140,2phc2sys0-21swapper/309:23:263
361190699131,3cyclictest0-21swapper/207:44:582
3611906991311,1cyclictest0-21swapper/212:22:282
3611906991311,1cyclictest0-21swapper/211:40:032
3611906991311,1cyclictest0-21swapper/210:40:022
3611904991310,2cyclictest3629493-21kthreadcore07:25:040
3153791130,4phc2sys0-21swapper/307:15:383
3153791130,3phc2sys0-21swapper/311:54:563
3153791130,2phc2sys0-21swapper/312:26:133
3153791130,2phc2sys0-21swapper/312:21:163
3153791130,2phc2sys0-21swapper/311:31:573
3153791130,2phc2sys0-21swapper/309:04:323
3153791130,2phc2sys0-21swapper/309:04:323
3153791130,1phc2sys0-21swapper/311:27:473
361190699129,1cyclictest0-21swapper/207:10:022
3611906991210,1cyclictest0-21swapper/209:41:082
3611906991210,1cyclictest0-21swapper/207:50:042
3153791120,3phc2sys0-21swapper/310:34:583
3153791120,2phc2sys0-21swapper/311:05:443
3153791120,2phc2sys0-21swapper/311:05:443
3153791120,2phc2sys0-21swapper/310:35:303
3153791120,1phc2sys0-21swapper/311:12:203
3153791120,1phc2sys0-21swapper/309:11:543
3153791120,1phc2sys0-21swapper/308:55:383
3153791120,1phc2sys0-21swapper/308:55:383
3153791120,1phc2sys0-21swapper/307:29:353
3153791111,3phc2sys0-21swapper/310:10:063
3153791110,3phc2sys0-21swapper/310:49:573
3153791110,2phc2sys0-21swapper/309:29:263
3153791110,2phc2sys0-21swapper/309:16:113
3153791110,2phc2sys0-21swapper/309:08:113
3153791110,2phc2sys0-21swapper/308:34:593
3153791110,2phc2sys0-21swapper/308:16:433
3153791110,2phc2sys0-21swapper/307:05:073
3153791110,1phc2sys0-21swapper/310:09:593
3153791110,1phc2sys0-21swapper/308:54:023
3153791110,1phc2sys0-21swapper/307:30:473
3153791104,2phc2sys0-21swapper/310:25:483
3153791101,3phc2sys0-21swapper/310:20:403
3153791101,2phc2sys0-21swapper/312:18:563
3153791101,2phc2sys0-21swapper/308:14:563
3153791101,2phc2sys0-21swapper/308:00:053
3153791100,3phc2sys0-21swapper/308:45:003
3153791100,3phc2sys0-21swapper/308:07:033
3153791100,2phc2sys0-21swapper/312:36:593
3153791100,2phc2sys0-21swapper/312:15:033
3153791100,2phc2sys0-21swapper/312:05:133
3153791100,2phc2sys0-21swapper/311:59:403
3153791100,2phc2sys0-21swapper/310:57:393
3153791100,2phc2sys0-21swapper/309:35:433
3153791100,2phc2sys0-21swapper/308:30:023
3153791100,2phc2sys0-21swapper/307:11:083
3153791100,1phc2sys0-21swapper/307:36:203
315379190,2phc2sys0-21swapper/311:17:353
315379190,2phc2sys0-21swapper/308:35:033
315379190,2phc2sys0-21swapper/308:25:013
315379190,2phc2sys0-21swapper/307:50:033
315379190,2phc2sys0-21swapper/307:49:563
315379180,2phc2sys0-21swapper/307:55:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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