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2026-07-05 - 23:45
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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 Jul 05, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39670052750,3sleep30-21swapper/311:59:523
38860972340,2sleep30-21swapper/311:04:533
38051032310,2sleep20-21swapper/210:09:572
3568078992617,3cyclictest36-21ksoftirqd/112:40:011
356807899240,5cyclictest3606822-21latency_hist07:40:011
3568077992417,6cyclictest274-21systemd-journal12:25:020
3153791241,3phc2sys0-21swapper/310:39:533
3568078992315,3cyclictest36-21ksoftirqd/112:30:011
3568077992320,2cyclictest660-21dbus-daemon07:40:010
3568077992320,2cyclictest3704379-21idleruntime-cro09:00:000
492398220,3rtkit-daemon1174-21ntpd09:22:361
3568079992219,1cyclictest0-21swapper/212:40:012
3568078992214,3cyclictest3994883-21kthreadcore12:19:501
3568078992214,3cyclictest36-21ksoftirqd/111:00:031
356807799228,5cyclictest671-21polkitd11:45:010
3568077992214,7cyclictest3568075-21cyclictest10:24:500
3568079992118,1cyclictest0-21swapper/211:45:002
356807899218,7cyclictest0-21swapper/107:14:431
3568077992111,6cyclictest0-21swapper/011:39:510
3568079992018,1cyclictest0-21swapper/210:20:022
3568079992017,1cyclictest0-21swapper/209:50:022
356807899208,4cyclictest191rcu_preempt09:05:021
356807899206,4cyclictest36-21ksoftirqd/109:50:011
3568078992014,2cyclictest191rcu_preempt11:39:551
3568078992012,3cyclictest36-21ksoftirqd/109:30:011
3568078992012,3cyclictest36-21ksoftirqd/108:40:001
3568078992012,3cyclictest36-21ksoftirqd/108:05:011
3568078992012,3cyclictest0-21swapper/110:55:021
3568078992010,4cyclictest3818309-21tr10:19:521
356807899200,7cyclictest3968130-21munin-run12:00:011
356807799209,6cyclictest0-21swapper/009:54:440
356807799209,6cyclictest0-21swapper/009:24:490
3568077992017,2cyclictest660-21dbus-daemon11:20:030
3568077992017,2cyclictest3864720-21cron10:50:010
3568077992011,5cyclictest3836881-21/usr/sbin/munin10:34:540
3153791200,2phc2sys0-21swapper/309:33:003
356807899196,7cyclictest36-21ksoftirqd/109:00:021
356807899196,5cyclictest0-21swapper/112:10:491
356807899195,7cyclictest36-21ksoftirqd/110:35:011
356807899192,11cyclictest3609400-21cut07:44:501
356807899191,9cyclictest3804543-21wc10:09:521
3568078991916,2cyclictest3864985-21grep10:50:031
3568078991916,2cyclictest3835044-21cron10:30:001
3568078991915,3cyclictest693-21systemd-logind10:45:011
3568078991915,3cyclictest3896014-21kworker/u16:3-ext4-rsv-conversion11:30:011
3568078991915,3cyclictest3896014-21kworker/u16:3-ext4-rsv-conversion11:30:011
3568078991912,2cyclictest191rcu_preempt11:50:021
3568078991911,3cyclictest36-21ksoftirqd/108:35:021
3568078991911,3cyclictest36-21ksoftirqd/108:20:021
356807899190,13cyclictest36-21ksoftirqd/108:55:021
356807799199,6cyclictest0-21swapper/011:35:010
356807799195,7cyclictest0-21swapper/012:34:540
3568077991915,3cyclictest0-21swapper/011:55:000
3568077991915,2cyclictest3798293-21systemd-run10:05:030
3568077991910,5cyclictest3979393-21kthreadcore12:09:520
3568079991815,1cyclictest0-21swapper/212:34:472
356807899189,4cyclictest3970698-21idleruntime12:04:471
356807899188,4cyclictest3980130-21cut12:09:531
356807899188,4cyclictest3763800-21gltestperf09:44:471
356807899187,6cyclictest3944629-21kthreadcore11:44:521
356807899187,5cyclictest3886667-21tr11:04:561
356807899186,7cyclictest3621684-21tr07:54:501
356807899185,7cyclictest3955464-21tr11:54:461
356807899184,6cyclictest3646728-21cut08:14:511
356807899184,5cyclictest191rcu_preempt10:24:441
356807899182,7cyclictest3748382-21ssh09:34:431
3568078991814,3cyclictest698-21in:imuxsock07:30:011
3568078991813,1cyclictest191rcu_preempt08:45:011
3568078991810,4cyclictest36-21ksoftirqd/111:09:501
3568078991810,4cyclictest1247-21mta-sts-daemon11:34:061
3568078991810,3cyclictest36-21ksoftirqd/108:29:491
3568078991810,3cyclictest36-21ksoftirqd/108:00:021
356807799188,6cyclictest0-21swapper/012:39:450
356807799188,6cyclictest0-21swapper/010:45:010
3568077991815,2cyclictest3803353-21kthreadcore10:09:510
3568077991815,2cyclictest3716794-21cron09:10:000
3568077991815,2cyclictest3568075-21cyclictest11:10:010
3568077991815,2cyclictest1247-21mta-sts-daemon10:39:460
3568077991812,2cyclictest3947149-21kworker/u16:2-events_unbound12:12:120
3568077991811,4cyclictest3775091-21kthreadcore09:49:520
3153791181,2phc2sys0-21swapper/310:10:073
3568079991715,1cyclictest0-21swapper/211:19:482
3568079991715,1cyclictest0-21swapper/211:05:032
3568079991714,1cyclictest0-21swapper/207:25:012
356807899179,3cyclictest36-21ksoftirqd/109:54:561
356807899179,3cyclictest36-21ksoftirqd/109:20:011
356807899179,3cyclictest36-21ksoftirqd/107:10:011
356807899175,5cyclictest274-21systemd-journal10:35:031
356807899173,8cyclictest3640974-21kthreadcore08:09:511
356807899172,10cyclictest3906498-21kthreadcore11:19:521
356807899171,7cyclictest3613599-21apt07:49:421
356807899171,5cyclictest36-21ksoftirqd/110:10:231
3568078991714,2cyclictest3568075-21cyclictest07:34:501
3568078991713,3cyclictest3912159-21irqcore11:24:491
3568078991712,1cyclictest191rcu_preempt09:36:121
3568078991711,2cyclictest191rcu_preempt12:24:521
3568078991710,2cyclictest191rcu_preempt09:10:021
3568078991710,1cyclictest191rcu_preempt11:11:541
356807899170,8cyclictest3587985-21cut07:24:541
356807799179,7cyclictest0-21swapper/009:59:430
356807799179,2cyclictest0-21swapper/009:12:360
356807799178,5cyclictest0-21swapper/009:31:490
3568077991714,2cyclictest3693600-21gltestperf08:54:470
3568077991714,2cyclictest3637305-21apt-key08:05:010
3568077991714,2cyclictest274-21systemd-journal08:40:000
3568077991714,2cyclictest1237-21mta-sts-daemon11:02:220
3568077991710,6cyclictest1246-21mta-sts-daemon11:49:490
3568077991710,6cyclictest0-21swapper/011:20:490
3568077991710,2cyclictest11systemd11:15:020
356807799170,12cyclictest0-21swapper/010:26:040
3153791170,3phc2sys0-21swapper/312:39:293
3153791170,2phc2sys0-21swapper/310:55:113
3153791170,1phc2sys0-21swapper/312:22:183
3568079991614,1cyclictest0-21swapper/211:25:022
3568079991614,1cyclictest0-21swapper/209:24:422
3568079991614,1cyclictest0-21swapper/208:20:022
3568079991613,1cyclictest0-21swapper/208:55:022
3568079991612,2cyclictest0-21swapper/208:43:252
356807899169,3cyclictest36-21ksoftirqd/107:15:031
356807899169,3cyclictest0-21swapper/109:57:491
356807899169,2cyclictest191rcu_preempt10:04:511
356807899168,3cyclictest36-21ksoftirqd/109:14:501
356807899167,3cyclictest36-21ksoftirqd/108:49:501
3568078991611,1cyclictest191rcu_preempt08:21:431
356807799169,2cyclictest0-21swapper/010:51:080
3568077991613,2cyclictest4922-21rtkit-daemon10:55:590
3568077991613,2cyclictest4922-21rtkit-daemon09:26:400
3568077991613,2cyclictest3974940-21mailstats12:04:550
3568077991613,2cyclictest3921032-21kthreadcore11:29:500
3568077991613,2cyclictest3921032-21kthreadcore11:29:500
3568077991613,2cyclictest3812801-21sh10:15:010
3568077991613,2cyclictest3756519-21sed09:39:470
3568077991611,2cyclictest1246-21mta-sts-daemon12:18:400
356807799160,1cyclictest0-21swapper/008:29:550
356807799160,10cyclictest3814582-21ssh10:19:440
3153791161,4phc2sys0-21swapper/310:34:443
3153791160,3phc2sys0-21swapper/309:13:433
3153791160,3phc2sys0-21swapper/307:34:533
3153791160,2phc2sys0-21swapper/311:14:273
3153791160,1phc2sys0-21swapper/312:13:523
3568079991513,1cyclictest0-21swapper/212:09:492
3568079991513,1cyclictest0-21swapper/211:40:022
3568079991513,1cyclictest0-21swapper/210:55:022
3568079991513,1cyclictest0-21swapper/208:30:012
3568079991513,1cyclictest0-21swapper/208:25:022
3568079991513,1cyclictest0-21swapper/207:19:502
3568079991513,1cyclictest0-21swapper/207:15:032
3568079991512,2cyclictest0-21swapper/211:30:022
3568079991512,2cyclictest0-21swapper/211:30:022
3568079991512,1cyclictest0-21swapper/212:20:372
3568079991512,1cyclictest0-21swapper/212:20:012
3568079991512,1cyclictest0-21swapper/211:59:502
3568079991512,1cyclictest0-21swapper/211:49:492
3568079991512,1cyclictest0-21swapper/210:45:012
3568079991512,1cyclictest0-21swapper/210:36:362
3568079991512,1cyclictest0-21swapper/210:26:442
3568079991512,1cyclictest0-21swapper/209:58:442
3568079991512,1cyclictest0-21swapper/209:40:032
3568079991512,1cyclictest0-21swapper/209:14:462
3568079991512,1cyclictest0-21swapper/207:59:462
3568079991512,1cyclictest0-21swapper/207:35:012
3568079991511,2cyclictest0-21swapper/209:15:342
356807899153,5cyclictest4015003-21ssh12:34:491
356807799158,4cyclictest3705503-21tail09:04:460
356807799157,2cyclictest0-21swapper/011:56:530
356807799152,7cyclictest3726771-21idleruntime09:19:460
3568077991512,2cyclictest3763225-21aten2.4-expect09:44:440
3568077991512,2cyclictest3687086-21cpuspeed_turbos08:49:460
3568077991512,2cyclictest3645000-21gltestperf08:14:460
3568077991512,2cyclictest3627035-21kthreadcore07:59:510
3568077991512,2cyclictest3576253-21gltestperf07:15:030
3568077991512,2cyclictest0-21swapper/007:50:010
3153791159,3phc2sys0-21swapper/311:16:133
3153791151,6phc2sys0-21swapper/310:54:433
3153791150,2phc2sys0-21swapper/311:42:293
3153791150,2phc2sys0-21swapper/311:09:363
3153791150,2phc2sys0-21swapper/310:48:483
3153791150,2phc2sys0-21swapper/310:04:513
3153791150,2phc2sys0-21swapper/309:20:443
3153791150,2phc2sys0-21swapper/307:44:563
356807999148,1cyclictest0-21swapper/212:10:212
3568079991412,1cyclictest0-21swapper/211:34:482
3568079991412,1cyclictest0-21swapper/211:14:512
3568079991412,1cyclictest0-21swapper/209:00:022
3568079991412,1cyclictest0-21swapper/208:05:012
3568079991411,1cyclictest0-21swapper/212:27:342
3568079991411,1cyclictest0-21swapper/212:04:542
3568079991411,1cyclictest0-21swapper/210:48:262
3568079991411,1cyclictest0-21swapper/210:04:272
3568079991411,1cyclictest0-21swapper/209:52:142
3568079991411,1cyclictest0-21swapper/209:34:472
3568079991411,1cyclictest0-21swapper/209:03:322
3568079991411,1cyclictest0-21swapper/207:49:522
3568079991411,1cyclictest0-21swapper/207:30:012
356807799148,5cyclictest1246-21mta-sts-daemon08:33:440
356807799143,6cyclictest0-21swapper/007:24:440
356807799142,7cyclictest3568708-21aten2.4-expect07:14:430
3568077991411,2cyclictest4008981-21kthreadcore12:29:510
3568077991411,2cyclictest3620241-21uniq07:54:460
3568077991411,2cyclictest3611186-21kthreadcore07:44:510
3568077991411,2cyclictest1242-21mta-sts-daemon08:09:450
3153791141,2phc2sys0-21swapper/312:34:083
3153791140,2phc2sys0-21swapper/310:43:303
3153791140,2phc2sys0-21swapper/308:59:383
3568079991311,1cyclictest0-21swapper/211:54:252
3568079991311,1cyclictest0-21swapper/210:59:212
3568079991311,1cyclictest0-21swapper/210:30:122
3568079991311,1cyclictest0-21swapper/210:24:472
3568079991311,1cyclictest0-21swapper/210:15:022
3568079991311,1cyclictest0-21swapper/209:42:452
3568079991311,1cyclictest0-21swapper/209:29:032
3568079991311,1cyclictest0-21swapper/207:44:472
3568079991311,1cyclictest0-21swapper/207:10:022
3568079991310,1cyclictest0-21swapper/209:09:502
3568079991310,1cyclictest0-21swapper/208:49:552
3568079991310,1cyclictest0-21swapper/208:39:512
3568079991310,1cyclictest0-21swapper/208:34:412
3568079991310,1cyclictest0-21swapper/208:14:442
3568079991310,1cyclictest0-21swapper/208:09:472
356807799138,4cyclictest1247-21mta-sts-daemon08:22:400
356807799134,4cyclictest3650300-21/usr/sbin/munin08:19:480
3568077991311,1cyclictest1242-21mta-sts-daemon07:33:160
3568077991310,2cyclictest3592007-21kthreadcore07:29:520
3153791131,2phc2sys0-21swapper/311:34:443
3153791130,3phc2sys0-21swapper/309:28:443
3153791130,2phc2sys0-21swapper/310:29:473
3153791130,2phc2sys0-21swapper/310:18:373
3153791130,2phc2sys0-21swapper/309:04:473
39104812120,2sleep30-21swapper/311:23:053
356807999129,1cyclictest0-21swapper/207:52:432
3568079991210,1cyclictest0-21swapper/211:05:562
3568079991210,1cyclictest0-21swapper/207:39:492
356807799129,2cyclictest1050-21snmpd08:44:320
3153791127,2phc2sys0-21swapper/309:53:533
3153791120,2phc2sys0-21swapper/311:29:113
3153791120,2phc2sys0-21swapper/311:29:113
3153791120,2phc2sys0-21swapper/310:23:573
3153791120,2phc2sys0-21swapper/308:54:563
3153791120,2phc2sys0-21swapper/308:34:443
3153791120,2phc2sys0-21swapper/307:56:423
3153791120,2phc2sys0-21swapper/307:35:373
3153791120,1phc2sys0-21swapper/312:07:373
3153791120,1phc2sys0-21swapper/309:45:423
3153791120,1phc2sys0-21swapper/307:24:583
356807799118,2cyclictest0-21swapper/007:10:010
3153791110,3phc2sys0-21swapper/311:40:023
3153791110,2phc2sys0-21swapper/311:48:153
3153791110,2phc2sys0-21swapper/309:44:463
3153791110,2phc2sys0-21swapper/309:15:493
3153791110,2phc2sys0-21swapper/309:09:443
3153791110,2phc2sys0-21swapper/307:16:143
3153791110,1phc2sys0-21swapper/309:56:293
3153791110,1phc2sys0-21swapper/308:25:433
3153791110,1phc2sys0-21swapper/308:22:183
3153791101,2phc2sys0-21swapper/308:14:563
3153791101,2phc2sys0-21swapper/308:04:563
3153791101,2phc2sys0-21swapper/307:15:023
3153791101,2phc2sys0-21swapper/307:09:493
3153791100,2phc2sys0-21swapper/312:26:273
3153791100,2phc2sys0-21swapper/312:01:063
3153791100,2phc2sys0-21swapper/311:50:123
3153791100,2phc2sys0-21swapper/310:09:433
3153791100,2phc2sys0-21swapper/309:36:133
3153791100,1phc2sys0-21swapper/308:37:483
315379191,2phc2sys0-21swapper/308:07:123
315379191,2phc2sys0-21swapper/307:52:053
315379190,2phc2sys0-21swapper/312:15:413
315379190,2phc2sys0-21swapper/308:44:503
315379190,2phc2sys0-21swapper/308:15:133
315379190,2phc2sys0-21swapper/307:47:243
315379190,2phc2sys0-21swapper/307:27:373
315379190,1phc2sys0-21swapper/308:45:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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