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2026-03-18 - 04:27
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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 all highest latencies:
System rackeslot2.osadl.org (updated Wed Mar 18, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37232022990,1sleep13723205-21cut23:31:351
37501022240,2sleep30-21swapper/323:46:363
37501022240,2sleep30-21swapper/323:46:363
35901512240,2sleep00-21swapper/022:16:330
3325583992421,2cyclictest3437093-21turbostat20:40:000
3325583992414,6cyclictest3802754-21kthreadcore00:16:360
3325583992413,6cyclictest0-21swapper/023:35:010
3325585992317,3cyclictest0-21swapper/222:21:272
3325584992319,2cyclictest0-21swapper/123:30:021
3325584992318,1cyclictest134050irq/121-eno122:56:411
3325584992316,3cyclictest3769953-21kthreadcore23:56:361
3325583992312,6cyclictest0-21swapper/021:30:010
332558399221,16cyclictest3677572-21/usr/sbin/munin23:06:290
3325585992118,1cyclictest0-21swapper/219:20:012
3325584992112,4cyclictest0-21swapper/100:05:001
332558399219,6cyclictest0-21swapper/021:31:290
3325583992112,5cyclictest3624718-21aten_repower_fr22:36:290
3325583992112,5cyclictest3609141-21kthreadcore22:26:350
3325585992017,1cyclictest0-21swapper/200:15:012
3325584992016,3cyclictest3412737-21kworker/u16:0+nfsiod23:22:061
3325584992013,3cyclictest3818026-21latency_hist00:25:011
3325583992014,2cyclictest0-21swapper/022:57:040
3325583992011,5cyclictest3760248-21kthreadcore23:51:350
3325584991916,2cyclictest3685191-21cat23:10:001
3325584991915,3cyclictest3799928-21apt-config00:15:011
3325584991915,3cyclictest3373615-21kthreadcore19:46:351
332558399199,5cyclictest0-21swapper/021:46:310
332558399197,5cyclictest3649884-21cat22:50:000
3325583991916,2cyclictest3738126-21munin-plugin-st23:40:010
3325583991916,2cyclictest3325582-21cyclictest00:35:010
3325583991916,2cyclictest1-21systemd22:10:010
3325583991911,7cyclictest0-21swapper/022:51:270
332558399190,15cyclictest0-21swapper/021:59:560
2649091190,2phc2sys0-21swapper/323:16:283
2649091190,2phc2sys0-21swapper/322:59:093
3325585991815,1cyclictest0-21swapper/200:30:012
3325585991814,2cyclictest0-21swapper/221:46:062
3325585991813,1cyclictest0-21swapper/220:11:312
332558599181,10cyclictest0-21swapper/223:50:012
332558599181,10cyclictest0-21swapper/223:50:012
3325584991816,1cyclictest0-21swapper/122:00:001
3325584991815,2cyclictest1288-1atopacctd20:56:331
3325584991815,2cyclictest1288-1atopacctd20:56:331
332558399188,5cyclictest0-21swapper/023:26:350
332558399187,6cyclictest0-21swapper/000:05:020
3325583991816,1cyclictest3382331-21gpgv19:55:010
3325583991810,7cyclictest0-21swapper/022:41:290
3325583991810,4cyclictest1296-21polkitd23:20:000
3325585991715,1cyclictest0-21swapper/223:00:022
3325585991715,1cyclictest0-21swapper/222:10:022
3325585991714,1cyclictest0-21swapper/222:05:012
3325585991714,1cyclictest0-21swapper/221:40:152
3325585991714,1cyclictest0-21swapper/221:25:002
3325585991710,2cyclictest0-21swapper/223:55:012
332558499179,3cyclictest3542973-21runrttasks21:48:341
332558499179,2cyclictest134050irq/121-eno120:51:291
332558499178,4cyclictest0-21swapper/122:05:011
3325584991714,2cyclictest4114978-21snmpd23:45:011
3325584991714,2cyclictest3615930-21aten_repower_fr22:31:311
3325584991714,2cyclictest3571673-21head22:06:311
3325584991714,2cyclictest3325582-21cyclictest21:30:011
3325584991714,2cyclictest0-21swapper/123:50:021
3325584991714,2cyclictest0-21swapper/123:50:021
3325584991714,2cyclictest0-21swapper/121:10:021
3325584991714,2cyclictest0-21swapper/100:30:001
3325584991713,3cyclictest0-21swapper/100:40:011
3325583991714,2cyclictest3793082-21gltestperf00:11:310
3325583991714,2cyclictest3747010-21systemd-run23:45:000
3325583991714,2cyclictest3581211-21sh22:11:330
3325583991714,2cyclictest3346084-21systemd19:25:010
3325583991710,6cyclictest3500022-21latency_hist21:25:020
3325583991710,2cyclictest3791108-21munin-run00:10:010
332558599161,8cyclictest0-21swapper/220:40:012
3325585991614,1cyclictest0-21swapper/223:15:012
3325585991613,1cyclictest0-21swapper/221:15:012
3325585991613,1cyclictest0-21swapper/219:41:322
332558599161,11cyclictest0-21swapper/223:40:022
332558499169,3cyclictest0-21swapper/121:25:011
3325584991614,1cyclictest3325582-21cyclictest22:51:561
3325584991613,2cyclictest3809012-21systemd-run00:20:011
3325584991613,2cyclictest3632258-21sendmail22:40:001
3325584991613,2cyclictest3588232-21systemd-run22:15:011
3325584991613,2cyclictest3428553-21kthreadcore20:31:361
3325584991613,2cyclictest3325582-21cyclictest19:45:021
3325584991613,2cyclictest1290-21dbus-daemon19:35:021
3325584991612,3cyclictest3731275-21tail23:36:331
3325584991612,3cyclictest3600569-21kthreadcore22:21:341
332558399168,4cyclictest1996-21runrttasks23:57:230
332558399167,5cyclictest0-21swapper/000:26:350
332558399165,6cyclictest0-21swapper/020:47:040
3325583991613,2cyclictest3620054-21kthreadcore22:31:380
3325583991613,2cyclictest3570288-21perf22:05:000
3325583991613,2cyclictest3351953-21sh19:30:000
3325583991613,2cyclictest3351953-21sh19:30:000
3325583991613,2cyclictest3340026-21sh19:20:020
3325583991613,2cyclictest3325582-21cyclictest21:51:360
3325583991613,2cyclictest0-21swapper/020:20:010
3325583991612,3cyclictest3528174-21gltestperf21:41:320
3325583991612,2cyclictest3676536-21latency_hist23:05:010
332558399161,13cyclictest3693985-21wc23:15:000
2902298160,2rtkit-daemon4114978-21snmpd20:10:331
2649091161,2phc2sys0-21swapper/323:58:333
2649091160,4phc2sys0-21swapper/322:19:003
2649091160,3phc2sys0-21swapper/323:41:253
2649091160,2phc2sys0-21swapper/322:51:023
2649091160,1phc2sys0-21swapper/321:55:563
34146992150,1sleep10-21swapper/120:21:351
332558599151,9cyclictest0-21swapper/222:40:012
332558599151,5cyclictest0-21swapper/222:50:012
332558599151,5cyclictest0-21swapper/222:30:022
3325585991513,1cyclictest0-21swapper/222:16:402
3325585991513,1cyclictest0-21swapper/219:30:012
3325585991513,1cyclictest0-21swapper/219:30:012
3325585991512,1cyclictest0-21swapper/223:20:002
3325585991512,1cyclictest0-21swapper/223:06:362
3325585991512,1cyclictest0-21swapper/222:31:352
3325585991512,1cyclictest0-21swapper/222:00:012
3325585991512,1cyclictest0-21swapper/221:26:522
3325585991512,1cyclictest0-21swapper/220:20:012
3325585991512,1cyclictest0-21swapper/220:01:432
3325585991512,1cyclictest0-21swapper/200:23:042
3325585991512,1cyclictest0-21swapper/200:16:302
3325585991511,2cyclictest0-21swapper/223:20:182
3325585991511,2cyclictest0-21swapper/222:42:132
3325585991511,2cyclictest0-21swapper/200:02:312
332558499157,3cyclictest0-21swapper/100:31:511
332558499151,3cyclictest0-21swapper/121:11:401
3325584991513,1cyclictest29021-21rtkit-daemon20:26:021
3325584991512,2cyclictest3608162-21sed22:26:341
3325584991512,2cyclictest3589675-21tr22:16:291
3325584991512,2cyclictest3545057-21/usr/sbin/munin21:51:351
3325584991512,2cyclictest341rcuc/123:16:381
3325584991512,2cyclictest3412816-21apt-config20:20:001
3325584991512,2cyclictest3412737-21kworker/u16:0+ext4-rsv-conversion23:12:351
3325584991512,2cyclictest3394079-21timerwakeupswit20:01:421
3325584991512,2cyclictest3331712-21kthreadcore19:15:011
3325584991512,2cyclictest29021-21rtkit-daemon23:53:411
3325584991511,3cyclictest3512314-21kthreadcore21:31:361
3325584991511,3cyclictest3484738-21kthreadcore21:16:331
3325584991511,3cyclictest3464809-21kthreadcore21:01:371
3325584991511,1cyclictest601rcuop/319:40:011
3325584991510,4cyclictest3382443-21latency_hist19:55:011
332558399157,7cyclictest0-21swapper/000:21:310
332558399151,7cyclictest3704870-21idleruntime23:21:340
3325583991512,2cyclictest3601783-21kthreadcore22:21:350
3325583991512,2cyclictest3521469-21kthreadcore21:36:360
3325583991512,2cyclictest3461715-21head21:01:300
3325583991512,2cyclictest1286-21avahi-daemon19:35:000
3325583991512,2cyclictest0-21swapper/019:15:010
3325583991511,3cyclictest3325582-21cyclictest20:01:360
332558399151,13cyclictest0-21swapper/000:35:050
2649091151,3phc2sys0-21swapper/322:06:303
2649091150,4phc2sys0-21swapper/323:35:593
2649091150,2phc2sys0-21swapper/322:48:203
2649091150,2phc2sys0-21swapper/321:45:363
2649091150,2phc2sys0-21swapper/300:37:403
2649091150,1phc2sys0-21swapper/322:43:253
3325585991412,1cyclictest0-21swapper/222:11:352
3325585991412,1cyclictest0-21swapper/221:16:322
3325585991412,1cyclictest0-21swapper/220:31:372
3325585991411,1cyclictest0-21swapper/221:00:502
3325585991411,1cyclictest0-21swapper/220:46:342
3325585991411,1cyclictest0-21swapper/220:45:012
3325585991411,1cyclictest0-21swapper/219:36:352
3325585991411,1cyclictest0-21swapper/219:15:012
3325585991411,1cyclictest0-21swapper/200:40:002
3325585991411,1cyclictest0-21swapper/200:09:502
3325585991410,1cyclictest0-21swapper/221:06:412
332558599140,4cyclictest0-21swapper/220:00:012
332558499149,4cyclictest3325582-21cyclictest19:56:371
332558499147,3cyclictest3534268-21sshd21:43:511
3325584991411,2cyclictest3783466-21/usr/sbin/munin00:06:361
3325584991411,2cyclictest3443176-21/usr/sbin/munin20:45:011
3325584991411,2cyclictest3435613-21kthreadcore20:36:381
3325584991411,2cyclictest3349116-21kthreadcore19:26:371
3325584991411,2cyclictest3349116-21kthreadcore19:26:371
3325584991411,2cyclictest3333544-21irqcore19:15:031
3325584991411,2cyclictest3325582-21cyclictest20:46:351
3325584991411,2cyclictest0-21swapper/123:05:001
3325584991411,2cyclictest0-21swapper/122:46:291
3325584991410,3cyclictest3636294-21kthreadcore22:41:371
3325584991410,1cyclictest191rcu_preempt21:35:431
332558499140,5cyclictest3395277-21cpuspeed_turbos20:06:301
332558399145,7cyclictest3388509-21latency_hist20:00:020
332558399144,4cyclictest3376142-21sshd19:49:500
332558399141,9cyclictest3366941-21kthreadcore19:41:360
332558399141,8cyclictest1-21systemd20:53:500
3325583991411,2cyclictest3753022-21missed_timers23:46:390
3325583991411,2cyclictest3753022-21missed_timers23:46:390
3325583991411,2cyclictest3479310-21latency21:11:370
3325583991411,2cyclictest3438262-21gltestperf20:41:300
3325583991411,2cyclictest3422999-21kthreadcore20:26:380
3325583991411,2cyclictest3403051-21kthreadcore20:11:360
3325583991410,3cyclictest3396252-21kernelversion20:06:350
3325583991410,2cyclictest3364335-21wc19:40:010
332558399140,9cyclictest3416944-21kthreadcore20:21:360
2649091142,2phc2sys0-21swapper/323:01:373
2649091140,5phc2sys0-21swapper/300:26:283
2649091140,1phc2sys0-21swapper/322:00:033
332558599131,7cyclictest0-21swapper/219:21:282
332558599131,5cyclictest0-21swapper/223:26:282
3325585991311,1cyclictest0-21swapper/223:41:292
3325585991311,1cyclictest0-21swapper/221:37:552
3325585991311,1cyclictest0-21swapper/219:46:362
3325585991310,1cyclictest0-21swapper/223:31:362
3325585991310,1cyclictest0-21swapper/223:01:362
3325585991310,1cyclictest0-21swapper/222:51:332
3325585991310,1cyclictest0-21swapper/221:50:542
3325585991310,1cyclictest0-21swapper/221:31:362
3325585991310,1cyclictest0-21swapper/220:10:002
3325585991310,1cyclictest0-21swapper/219:51:362
3325585991310,1cyclictest0-21swapper/200:30:362
332558499139,2cyclictest3325702-21systemd-run19:10:021
3325583991310,2cyclictest3486116-21kthreadcore21:16:340
3325583991310,2cyclictest3460482-21processes20:56:400
3325583991310,2cyclictest3460482-21processes20:56:400
3325583991310,2cyclictest3425588-21sh20:31:300
332558399130,8cyclictest3468607-21sed21:06:350
2649091135,2phc2sys0-21swapper/320:41:343
2649091134,2phc2sys0-21swapper/323:50:103
2649091130,3phc2sys0-21swapper/321:33:013
2649091130,2phc2sys0-21swapper/322:29:233
2649091130,2phc2sys0-21swapper/322:21:143
2649091130,2phc2sys0-21swapper/321:39:073
2649091130,2phc2sys0-21swapper/300:04:213
332558599129,1cyclictest0-21swapper/223:56:362
332558599129,1cyclictest0-21swapper/220:21:362
332558599129,1cyclictest0-21swapper/219:10:012
332558599121,4cyclictest0-21swapper/220:51:292
3325585991210,1cyclictest0-21swapper/220:26:372
3325585991210,1cyclictest0-21swapper/219:35:002
332558499129,2cyclictest3344664-21kthreadcore19:21:361
2649091121,2phc2sys0-21swapper/319:06:283
2649091120,2phc2sys0-21swapper/319:24:483
2649091120,1phc2sys0-21swapper/319:36:503
2649091120,1phc2sys0-21swapper/300:09:243
37285252110,2sleep30-21swapper/323:33:473
332558599118,2cyclictest0-21swapper/220:55:082
332558599118,2cyclictest0-21swapper/220:55:082
332558399119,1cyclictest3131047-21kworker/u16:1-ext4-rsv-conversion19:10:020
2649091111,3phc2sys0-21swapper/321:40:573
2649091111,2phc2sys0-21swapper/320:46:393
2649091111,2phc2sys0-21swapper/319:41:313
2649091111,2phc2sys0-21swapper/300:30:383
2649091111,2phc2sys0-21swapper/300:12:113
2649091110,4phc2sys0-21swapper/322:36:283
2649091110,2phc2sys0-21swapper/323:26:023
2649091110,2phc2sys0-21swapper/320:56:293
2649091110,2phc2sys0-21swapper/320:56:293
2649091110,2phc2sys0-21swapper/300:16:563
2649091110,1phc2sys0-21swapper/321:01:223
2649091110,1phc2sys0-21swapper/320:05:073
2649091110,1phc2sys0-21swapper/319:49:413
2649091110,1phc2sys0-21swapper/319:17:193
35022772100,2sleep30-21swapper/321:26:343
2649091101,2phc2sys0-21swapper/322:32:563
2649091101,2phc2sys0-21swapper/321:15:523
2649091101,2phc2sys0-21swapper/321:06:433
2649091101,2phc2sys0-21swapper/320:31:403
2649091100,3phc2sys0-21swapper/323:05:263
2649091100,2phc2sys0-21swapper/322:12:073
2649091100,2phc2sys0-21swapper/321:52:193
2649091100,2phc2sys0-21swapper/321:20:173
2649091100,2phc2sys0-21swapper/320:16:333
2649091100,2phc2sys0-21swapper/320:11:293
2649091100,2phc2sys0-21swapper/319:51:373
2649091100,2phc2sys0-21swapper/319:26:323
2649091100,2phc2sys0-21swapper/319:26:323
2649091100,2phc2sys0-21swapper/319:11:293
2649091100,1phc2sys0-21swapper/319:59:423
264909191,4phc2sys0-21swapper/319:31:283
264909190,4phc2sys0-21swapper/320:26:303
264909190,2phc2sys0-21swapper/323:20:093
264909190,2phc2sys0-21swapper/323:11:073
264909190,2phc2sys0-21swapper/321:10:513
264909190,2phc2sys0-21swapper/320:51:283
264909190,2phc2sys0-21swapper/300:22:173
264909180,3phc2sys0-21swapper/320:21:413
264909180,2phc2sys0-21swapper/320:35:093
264909180,2phc2sys0-21swapper/320:00:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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