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2026-03-26 - 22:07
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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 Thu Mar 26, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
363730921170,2sleep30-21swapper/309:35:013
38715452960,1sleep13871548-21cut11:51:221
38622972920,2sleep13862301-21cut11:46:211
36186622390,2sleep30-21swapper/309:22:393
3446666993327,3cyclictest1-21systemd10:10:010
3446666992614,8cyclictest1327-21in:imuxsock09:50:020
3446668992320,1cyclictest0-21swapper/209:20:012
3446667992320,2cyclictest3886707-21apt-key12:00:011
3446668992118,1cyclictest0-21swapper/212:21:162
3446668992118,1cyclictest0-21swapper/209:00:002
3446667992117,3cyclictest3768506-21kernelversion10:51:241
344666799211,4cyclictest3748832-21munin-run10:40:011
3446668992018,1cyclictest0-21swapper/211:40:012
3446668992017,1cyclictest0-21swapper/212:40:002
3446667992017,2cyclictest3570305-21apt-key08:50:001
3446667992016,3cyclictest0-21swapper/108:45:001
3446667992014,4cyclictest3453022-21munin-run07:15:011
3446667992013,3cyclictest3732703-21/usr/sbin/munin10:31:281
3446667992012,1cyclictest191rcu_preempt08:20:531
3446667992011,4cyclictest0-21swapper/112:30:001
3446666992017,2cyclictest3852544-21latency_hist11:40:020
3446666992017,2cyclictest3731626-21latency_hist10:30:010
3446668991916,1cyclictest0-21swapper/209:40:012
3446668991916,1cyclictest0-21swapper/209:35:002
3446667991916,2cyclictest0-21swapper/108:35:011
3446667991913,3cyclictest601rcuop/310:22:021
3446667991912,3cyclictest36-21ksoftirqd/112:20:001
344666699199,5cyclictest0-21swapper/009:55:020
344666699199,5cyclictest0-21swapper/009:31:290
3446666991911,4cyclictest3606722-21kthreadcore09:16:250
344666899189,2cyclictest0-21swapper/209:21:182
344666899184,2cyclictest0-21swapper/209:29:122
344666899181,9cyclictest0-21swapper/210:20:012
3446668991816,1cyclictest0-21swapper/212:30:012
3446668991816,1cyclictest0-21swapper/209:55:012
3446668991816,1cyclictest0-21swapper/209:50:022
3446668991815,1cyclictest0-21swapper/212:00:002
3446668991815,1cyclictest0-21swapper/208:36:192
344666799182,3cyclictest191rcu_preempt11:00:011
3446667991815,2cyclictest3895294-21cron12:05:001
3446667991812,2cyclictest3751114-21kthreadcore10:41:241
344666699188,5cyclictest0-21swapper/011:11:250
344666699187,6cyclictest0-21swapper/010:25:010
3446666991815,2cyclictest3860934-21latency_hist11:45:000
3446666991815,2cyclictest3453060-21tail07:15:010
3446666991815,2cyclictest1996-21runrttasks08:35:010
3446666991815,2cyclictest0-21swapper/012:00:000
2649091180,2phc2sys0-21swapper/310:31:503
344666899174,1cyclictest0-21swapper/212:04:222
3446668991714,1cyclictest0-21swapper/211:10:022
3446668991714,1cyclictest0-21swapper/210:45:012
3446668991714,1cyclictest0-21swapper/210:06:162
3446668991714,1cyclictest0-21swapper/210:01:022
3446668991714,1cyclictest0-21swapper/208:00:002
3446668991713,2cyclictest0-21swapper/210:21:252
344666899170,1cyclictest0-21swapper/210:28:472
344666799179,3cyclictest0-21swapper/109:55:011
344666799178,4cyclictest0-21swapper/112:35:011
344666799178,4cyclictest0-21swapper/112:11:231
344666799174,6cyclictest3573003-21tr08:51:241
344666799172,10cyclictest3662945-21kworker/1:1-mm_percpu_wq10:45:531
3446667991714,2cyclictest0-21swapper/111:30:011
3446667991713,3cyclictest3645768-21latency_hist09:40:001
3446667991710,1cyclictest501rcuop/207:50:001
344666699179,6cyclictest0-21swapper/011:25:010
344666699177,5cyclictest0-21swapper/012:26:160
3446666991714,2cyclictest3594782-21latency_hist09:10:010
3446666991714,2cyclictest3546185-21cut08:30:020
3446666991714,2cyclictest3467019-21apt-config07:25:000
3446666991714,2cyclictest3446664-21cyclictest11:01:190
3446666991714,2cyclictest1329-21rs:main0
3446666991711,5cyclictest3760980-21kthreadcore10:46:250
3446666991710,6cyclictest1288-1atopacctd12:10:020
344666699170,13cyclictest0-21swapper/009:35:300
2649091171,6phc2sys0-21swapper/309:16:183
2649091170,3phc2sys0-21swapper/310:01:473
2649091170,2phc2sys0-21swapper/311:24:073
2649091170,2phc2sys0-21swapper/310:14:593
2649091170,2phc2sys0-21swapper/309:40:273
3446668991613,1cyclictest0-21swapper/211:52:192
3446668991613,1cyclictest0-21swapper/210:50:002
3446668991613,1cyclictest0-21swapper/210:31:292
3446668991613,1cyclictest0-21swapper/209:55:122
3446668991613,1cyclictest0-21swapper/208:26:272
3446668991613,1cyclictest0-21swapper/208:10:002
344666799169,3cyclictest191rcu_preempt10:06:231
344666799168,4cyclictest0-21swapper/112:06:171
344666799168,3cyclictest0-21swapper/109:30:001
344666799168,2cyclictest3662945-21kworker/1:1+events_freezable11:11:241
344666799167,3cyclictest501rcuop/208:35:101
344666799167,2cyclictest0-21swapper/111:06:161
344666799167,1cyclictest191rcu_preempt12:20:201
344666799165,3cyclictest3546033-21kworker/u16:3+xprtiod10:01:421
3446667991613,2cyclictest3836506-21sh11:31:201
3446667991613,2cyclictest3824211-21unixbench_singl11:21:301
3446667991611,1cyclictest1109-21hwrng11:15:171
3446667991611,1cyclictest1109-21hwrng10:12:491
344666699169,6cyclictest0-21swapper/010:36:280
344666699168,4cyclictest3596853-21kernelversion09:11:230
344666699168,2cyclictest0-21swapper/011:31:190
344666699167,7cyclictest3811483-21tr11:16:240
344666699166,2cyclictest0-21swapper/010:41:230
3446666991613,2cyclictest3767978-21idleruntime10:51:220
3446666991613,2cyclictest3680318-21latency_hist10:00:000
3446666991613,2cyclictest1296-21polkitd11:55:010
3446666991612,3cyclictest3895351-21kworker/u16:2+nfsiod12:22:160
3446666991611,3cyclictest1326-21systemd-logind11:50:010
2649091160,2phc2sys0-21swapper/312:34:293
2649091160,2phc2sys0-21swapper/309:53:093
344666899151,8cyclictest0-21swapper/207:10:012
3446668991512,1cyclictest0-21swapper/212:11:362
3446668991512,1cyclictest0-21swapper/211:05:002
3446668991512,1cyclictest0-21swapper/210:55:012
3446668991512,1cyclictest0-21swapper/207:25:012
344666899151,11cyclictest3869426-21chrt11:49:582
344666899151,10cyclictest0-21swapper/210:40:012
344666799157,3cyclictest501rcuop/208:17:141
344666799157,3cyclictest501rcuop/207:54:341
344666799157,3cyclictest0-21swapper/110:26:171
344666799155,2cyclictest0-21swapper/109:45:591
344666799151,2cyclictest134050irq/121-eno109:11:221
3446667991512,2cyclictest3654346-21systemd-run09:45:001
3446667991512,2cyclictest3634578-21sed09:31:291
3446667991512,2cyclictest3609371-21timerwakeupswit09:16:311
3446667991512,2cyclictest3484674-21mailstats07:36:281
3446667991512,2cyclictest3473224-21cron07:30:001
3446667991511,3cyclictest3950692-21kthreadcore12:36:241
3446667991510,1cyclictest501rcuop/209:58:341
3446667991510,1cyclictest191rcu_preempt11:38:161
3446667991510,1cyclictest191rcu_preempt07:19:221
344666699159,5cyclictest3949818-21kthreadcore12:36:230
344666699159,5cyclictest0-21swapper/009:21:230
344666699158,6cyclictest0-21swapper/009:41:260
344666699158,2cyclictest0-21swapper/011:26:230
344666699151,5cyclictest0-21swapper/007:41:160
3446666991512,2cyclictest3891164-21kthreadcore12:01:250
3446666991512,2cyclictest3776164-21cstates10:56:180
3446666991512,2cyclictest3498193-21cpuspeed_turbos07:51:190
3446666991512,2cyclictest3446664-21cyclictest09:26:220
3446666991512,2cyclictest1327-21in:imuxsock07:20:000
3446666991512,2cyclictest1286-21avahi-daemon08:06:270
3446666991512,2cyclictest0-21swapper/012:15:010
2649091150,2phc2sys0-21swapper/310:59:083
2649091150,2phc2sys0-21swapper/310:35:453
2649091150,2phc2sys0-21swapper/309:57:293
2649091150,2phc2sys0-21swapper/309:26:203
2649091150,2phc2sys0-21swapper/307:16:273
2649091150,1phc2sys0-21swapper/310:45:573
344666899142,9cyclictest3912780-21chrt12:15:032
344666899142,9cyclictest3570731-21chrt08:50:032
344666899142,9cyclictest3491713-21chrt07:45:032
344666899141,3cyclictest36984402sleep210:11:162
3446668991412,1cyclictest0-21swapper/212:35:012
3446668991412,1cyclictest0-21swapper/211:42:512
3446668991412,1cyclictest0-21swapper/208:41:242
3446668991412,1cyclictest0-21swapper/207:15:012
3446668991411,1cyclictest0-21swapper/211:21:302
3446668991411,1cyclictest0-21swapper/210:56:192
3446668991411,1cyclictest0-21swapper/209:11:242
3446668991411,1cyclictest0-21swapper/208:46:182
3446668991411,1cyclictest0-21swapper/208:16:262
3446668991411,1cyclictest0-21swapper/208:01:242
3446668991411,1cyclictest0-21swapper/207:41:242
3446668991411,1cyclictest0-21swapper/207:31:222
3446668991410,2cyclictest0-21swapper/211:20:002
3446668991410,2cyclictest0-21swapper/207:51:182
3446668991410,2cyclictest0-21swapper/207:26:242
344666799146,3cyclictest501rcuop/208:25:281
344666799146,1cyclictest134050irq/121-eno110:18:071
344666799145,6cyclictest0-21swapper/108:56:171
3446667991411,2cyclictest3593261-21kthreadcore09:06:251
3446667991411,2cyclictest3446664-21cyclictest11:01:281
3446667991411,2cyclictest1326-21systemd-logind08:00:001
3446667991411,2cyclictest1288-1atopacctd08:06:211
3446667991410,3cyclictest3523462-21irqrtprio08:11:221
3446667991410,3cyclictest3477407-21kthreadcore07:31:241
3446667991410,1cyclictest601rcuop/307:41:321
344666699148,4cyclictest134050irq/121-eno110:31:000
344666699142,7cyclictest0-21swapper/008:11:170
3446666991412,1cyclictest29021-21rtkit-daemon07:59:140
3446666991411,2cyclictest3797013-21kthreadcore11:06:310
3446666991411,2cyclictest3701783-21kthreadcore10:11:240
3446666991411,2cyclictest3585694-21kthreadcore09:01:230
3446666991411,2cyclictest3573605-21kthreadcore08:51:240
3446666991411,2cyclictest3563217-21needreboot08:41:250
3446666991411,2cyclictest3553783-21kthreadcore08:36:240
3446666991411,2cyclictest3492436-21cut07:46:210
3446666991411,2cyclictest3446664-21cyclictest08:22:200
3446666991410,3cyclictest3697493-21kworker/u16:2+nfsiod10:18:270
3446666991410,3cyclictest3577210-21cpuspeed_turbos08:56:190
344666699140,2cyclictest134050irq/121-eno107:31:180
2649091140,2phc2sys0-21swapper/310:19:483
2649091140,2phc2sys0-21swapper/309:49:193
344666899139,2cyclictest0-21swapper/207:36:212
344666899137,3cyclictest0-21swapper/211:31:172
344666899136,1cyclictest0-21swapper/209:01:062
344666899135,2cyclictest0-21swapper/212:05:342
344666899133,3cyclictest38074892sleep211:12:282
3446668991310,1cyclictest0-21swapper/211:26:242
3446668991310,1cyclictest0-21swapper/208:21:252
344666799138,1cyclictest3485458-21kworker/1:0+events_freezable09:01:201
344666799138,1cyclictest191rcu_preempt08:01:221
3446667991310,2cyclictest3613289-21sh09:21:221
3446667991310,2cyclictest3461994-21fschecks_time07:21:201
3446667991310,2cyclictest0-21swapper/111:41:151
344666699131,7cyclictest3914057-21diskstats12:16:200
344666699131,7cyclictest1290-21dbus-daemon07:40:020
3446666991311,1cyclictest3569034-21kthreadcore08:46:240
3446666991310,2cyclictest3684156-21kthreadcore10:01:240
3446666991310,2cyclictest3471132-21kthreadcore07:26:240
3446666991310,2cyclictest0-21swapper/012:35:000
344666699130,8cyclictest3510092-21basename08:01:180
2649091133,2phc2sys0-21swapper/310:05:123
2649091130,2phc2sys0-21swapper/312:20:393
2649091130,2phc2sys0-21swapper/312:13:113
2649091130,2phc2sys0-21swapper/312:01:313
2649091130,2phc2sys0-21swapper/311:50:493
2649091130,2phc2sys0-21swapper/311:41:513
2649091130,2phc2sys0-21swapper/311:01:223
2649091130,2phc2sys0-21swapper/309:10:503
2649091130,2phc2sys0-21swapper/307:12:123
2649091130,1phc2sys0-21swapper/312:35:393
2649091130,1phc2sys0-21swapper/308:39:003
2649091130,1phc2sys0-21swapper/308:15:203
344666899129,1cyclictest0-21swapper/209:05:142
344666899124,6cyclictest35221412chrt08:10:042
3446668991210,1cyclictest0-21swapper/209:41:192
3446668991210,1cyclictest0-21swapper/208:31:242
3446668991210,1cyclictest0-21swapper/207:15:022
344666799129,2cyclictest1296-21polkitd07:10:001
2649091120,4phc2sys0-21swapper/311:45:253
2649091120,2phc2sys0-21swapper/311:56:183
2649091120,2phc2sys0-21swapper/310:22:203
344666699116,4cyclictest1-21systemd07:10:010
2649091113,2phc2sys0-21swapper/307:26:193
2649091111,5phc2sys0-21swapper/308:31:173
2649091111,3phc2sys0-21swapper/310:51:183
2649091111,2phc2sys0-21swapper/309:01:163
2649091110,2phc2sys0-21swapper/312:05:523
2649091110,2phc2sys0-21swapper/311:13:423
2649091110,2phc2sys0-21swapper/311:06:163
2649091110,2phc2sys0-21swapper/309:10:013
2649091110,1phc2sys0-21swapper/308:29:143
2649091110,1phc2sys0-21swapper/307:49:353
2649091110,1phc2sys0-21swapper/307:37:093
2649091101,3phc2sys0-21swapper/310:26:243
2649091101,2phc2sys0-21swapper/311:30:573
2649091101,2phc2sys0-21swapper/309:37:273
2649091101,2phc2sys0-21swapper/308:46:293
2649091101,2phc2sys0-21swapper/307:41:293
2649091101,2phc2sys0-21swapper/307:25:023
2649091100,3phc2sys0-21swapper/308:56:273
2649091100,2phc2sys0-21swapper/311:16:303
2649091100,2phc2sys0-21swapper/308:21:173
2649091100,2phc2sys0-21swapper/307:56:163
2649091100,1phc2sys0-21swapper/312:27:283
264909191,3phc2sys0-21swapper/307:06:173
264909191,2phc2sys0-21swapper/310:40:163
264909191,2phc2sys0-21swapper/308:51:263
264909191,2phc2sys0-21swapper/308:41:203
264909190,2phc2sys0-21swapper/312:16:303
264909190,2phc2sys0-21swapper/311:35:223
264909190,2phc2sys0-21swapper/311:25:283
264909190,2phc2sys0-21swapper/308:13:033
264909190,2phc2sys0-21swapper/308:01:173
264909190,2phc2sys0-21swapper/307:51:193
264909190,2phc2sys0-21swapper/307:30:393
264909180,2phc2sys0-21swapper/308:05:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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