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2026-05-07 - 12:35
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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 May 07, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
357899721010,2sleep30-21swapper/321:10:263
36447382920,2sleep30-21swapper/321:55:003
38182992720,2sleep30-21swapper/323:45:273
3423139992722,4cyclictest3429557-21cut19:15:010
2649191260,2ptp4l0-21swapper/319:15:003
3423141992320,1cyclictest0-21swapper/221:40:002
3423141992320,1cyclictest0-21swapper/221:15:242
3423139992320,2cyclictest3798263-21systemd23:35:010
3423139992320,2cyclictest3705774-21munin-run22:35:000
342313999229,7cyclictest0-21swapper/022:25:190
3423139992213,5cyclictest3882576-21/usr/sbin/munin00:30:240
3423139992212,6cyclictest3586574-21kthreadcore21:15:270
3423141992118,1cyclictest0-21swapper/219:25:012
3423140992118,2cyclictest0-21swapper/122:40:011
3423140992114,3cyclictest3807707-21kthreadcore23:40:251
3423139992118,2cyclictest3859417-21grep00:15:010
3423139992110,6cyclictest0-21swapper/022:20:010
3423141992017,1cyclictest0-21swapper/221:25:312
3423140992016,2cyclictest3897384-21sendmail00:40:001
3423139992017,2cyclictest3544841-21gmain20:45:020
3423139992017,2cyclictest3538192-21idleruntime-cro20:40:000
3423139992012,4cyclictest3599538-21apt21:25:180
3423139992011,5cyclictest3665815-21timerandwakeup22:05:310
36895912190,3sleep30-21swapper/322:22:293
342314199192,12cyclictest0-21swapper/220:50:012
3423141991917,1cyclictest0-21swapper/223:35:012
342314099199,4cyclictest0-21swapper/122:05:181
3423140991916,2cyclictest3729816-21df22:50:211
3423140991916,2cyclictest0-21swapper/123:40:031
3423140991915,2cyclictest1290-21dbus-daemon23:10:021
3423140991912,3cyclictest3602681-21kthreadcore21:25:271
3423140991911,3cyclictest3875151-21aten2.4-expect00:25:191
3423140991911,2cyclictest11systemd22:00:011
342313999199,5cyclictest0-21swapper/023:47:190
3423139991916,2cyclictest3813583-21ssh23:45:000
3423139991916,2cyclictest3781278-21grep23:20:330
3423139991915,3cyclictest3575939-21diskmemload22:20:240
3423141991815,1cyclictest0-21swapper/222:00:002
3423141991815,1cyclictest0-21swapper/219:16:252
3423141991814,2cyclictest0-21swapper/223:01:362
3423141991814,2cyclictest0-21swapper/200:15:222
3423140991815,2cyclictest3675185-21dump-pmu-power22:15:001
3423140991815,2cyclictest3624722-21kthreadcore21:40:261
3423140991815,2cyclictest3429486-21unixbench_multi19:15:011
3423140991815,2cyclictest0-21swapper/121:10:221
3423140991815,2cyclictest0-21swapper/120:45:011
3423140991813,2cyclictest3851703-21mta-sts-daemon23:02:431
3423139991816,1cyclictest3859723-21/usr/sbin/munin00:15:230
3423139991815,2cyclictest3644876-21/usr/sbin/munin21:55:020
3423139991815,2cyclictest3525677-21cron20:30:000
3423139991815,2cyclictest3482000-21systemd-run19:55:020
2649091180,3phc2sys0-21swapper/321:39:333
342314199171,9cyclictest0-21swapper/200:00:192
3423141991715,1cyclictest0-21swapper/223:15:012
3423141991714,1cyclictest0-21swapper/223:25:232
3423141991714,1cyclictest0-21swapper/220:20:002
3423141991714,1cyclictest0-21swapper/200:27:142
342314099178,4cyclictest0-21swapper/122:00:281
3423140991715,1cyclictest3557220-21latency_hist20:55:001
3423140991714,2cyclictest3784089-21if_enp1s023:25:251
3423140991714,2cyclictest3591466-21latency_hist21:20:021
3423140991714,2cyclictest3563721-21munin-plugin-st21:00:021
3423140991714,2cyclictest3506902-21systemd-run20:15:001
3423140991714,2cyclictest3506902-21systemd-run20:15:001
3423140991714,2cyclictest0-21swapper/121:40:021
3423140991711,5cyclictest3851875-21systemd-journal21:51:021
342313999174,3cyclictest3576313-21kworker/u16:2+ext4-rsv-conversion22:40:010
3423139991714,2cyclictest3880270-21mailstats00:25:300
3423139991714,2cyclictest3834372-21pmu-power23:55:300
3423139991714,2cyclictest3784164-21irqcore23:25:260
3423139991714,2cyclictest3767588-21latency_hist23:15:000
3423139991714,2cyclictest3744122-21systemd-run23:00:000
3423139991714,2cyclictest0-21swapper/021:10:020
3423139991713,3cyclictest3827634-1atopacctd20:15:000
3423139991713,3cyclictest3827634-1atopacctd20:15:000
3423139991710,3cyclictest3575939-21diskmemload22:55:020
2649091170,2phc2sys0-21swapper/323:13:453
2649091170,2phc2sys0-21swapper/322:01:503
2649091170,2phc2sys0-21swapper/300:13:383
383433398160,4rtkit-daemon3851703-21mta-sts-daemon19:42:130
383433398160,2rtkit-daemon0-21swapper/120:39:131
34388992160,2sleep30-21swapper/319:20:223
3423141991614,1cyclictest0-21swapper/222:16:182
3423141991613,1cyclictest0-21swapper/222:45:312
3423141991613,1cyclictest0-21swapper/222:39:322
3423141991613,1cyclictest0-21swapper/222:14:282
3423141991613,1cyclictest0-21swapper/221:40:252
3423141991613,1cyclictest0-21swapper/220:35:002
3423141991613,1cyclictest0-21swapper/220:15:002
3423141991613,1cyclictest0-21swapper/220:15:002
342314099169,3cyclictest0-21swapper/100:16:581
342314099168,4cyclictest3760273-21/usr/sbin/munin23:10:291
3423140991614,1cyclictest1996-21runrttasks19:40:181
3423140991613,2cyclictest3874856-21sh00:25:021
3423140991613,2cyclictest3851711-21cron00:10:001
3423140991613,2cyclictest3851711-21cron00:10:001
3423140991613,2cyclictest3851705-21mta-sts-daemon19:20:261
3423140991613,2cyclictest3827634-1atopacctd22:40:241
3423140991613,2cyclictest3797506-21sh23:33:261
3423140991613,2cyclictest3676714-21irqrtprio22:15:251
3423140991613,2cyclictest0-21swapper/121:10:011
3423140991612,3cyclictest3423137-21cyclictest20:50:001
3423140991612,2cyclictest0-21swapper/121:25:021
3423140991610,2cyclictest134050irq/121-eno100:33:521
342313999169,6cyclictest3851702-21mta-sts-daemon23:39:250
342313999169,6cyclictest0-21swapper/021:40:270
342313999166,5cyclictest0-21swapper/022:10:210
342313999161,4cyclictest491rcuog/222:45:580
3423139991613,2cyclictest3880722-21gmain20:25:010
3423139991613,2cyclictest3652930-21aten_repower_vo22:00:210
3423139991613,2cyclictest3563609-21grep21:00:010
3423139991613,2cyclictest3423137-21cyclictest21:55:210
3423139991613,2cyclictest1290-21dbus-daemon23:20:010
3423139991613,2cyclictest1-21systemd23:00:310
342313999160,10cyclictest3822158-21ssh23:50:220
2649091160,2phc2sys0-21swapper/300:38:023
2649091160,2phc2sys0-21swapper/300:15:033
2649091160,1phc2sys0-21swapper/323:43:443
2649091160,1phc2sys0-21swapper/322:49:443
342314199151,9cyclictest0-21swapper/220:10:012
342314199151,8cyclictest0-21swapper/223:50:012
3423141991513,1cyclictest0-21swapper/219:45:022
3423141991512,1cyclictest0-21swapper/223:40:262
3423141991512,1cyclictest0-21swapper/223:20:312
3423141991512,1cyclictest0-21swapper/222:55:012
3423141991512,1cyclictest0-21swapper/222:20:222
3423141991512,1cyclictest0-21swapper/222:05:242
3423141991512,1cyclictest0-21swapper/221:45:242
3423141991512,1cyclictest0-21swapper/200:34:052
3423141991512,1cyclictest0-21swapper/200:14:162
3423141991511,2cyclictest0-21swapper/221:50:272
3423141991511,2cyclictest0-21swapper/221:07:392
342314099154,7cyclictest3513106-21turbostat20:20:001
3423140991512,2cyclictest3851702-21mta-sts-daemon22:27:491
3423140991512,2cyclictest3832566-21kthreadcore23:55:271
3423140991512,2cyclictest3822985-21kthreadcore23:50:251
3423140991512,2cyclictest3816030-21kthreadcore23:45:251
3423140991512,2cyclictest3741817-21latency22:55:291
3423140991512,2cyclictest3520458-21gltestperf20:25:231
3423140991512,2cyclictest3476819-21irqcore19:50:221
3423140991512,2cyclictest3445880-21kthreadcore19:25:261
3423140991511,3cyclictest3778564-21kthreadcore23:20:261
3423140991511,2cyclictest0-21swapper/121:05:011
3423140991510,2cyclictest3851704-21mta-sts-daemon22:45:471
3423140991510,2cyclictest3851703-21mta-sts-daemon23:15:071
342313999158,5cyclictest0-21swapper/020:20:000
342313999157,3cyclictest0-21swapper/000:35:270
342313999155,5cyclictest0-21swapper/021:20:260
342313999152,6cyclictest3714133-21aten2.4-expect22:40:180
3423139991513,1cyclictest3851703-21mta-sts-daemon00:03:510
3423139991512,2cyclictest3546134-21grep20:45:240
3423139991512,2cyclictest3500681-21latency_hist20:10:000
3423139991512,2cyclictest3451903-21irqrtprio19:30:250
3423139991512,2cyclictest1426-21gdbus23:05:060
3423139991511,3cyclictest3827634-1atopacctd20:50:260
3423139991511,3cyclictest3442461-21kthreadcore19:20:260
3423139991510,4cyclictest3851705-21mta-sts-daemon21:35:300
2649091150,2phc2sys0-21swapper/300:05:033
2649091150,2phc2sys0-21swapper/300:05:033
342314199141,9cyclictest0-21swapper/220:30:012
342314199141,7cyclictest0-21swapper/219:50:012
3423141991412,1cyclictest0-21swapper/223:15:152
3423141991412,1cyclictest0-21swapper/221:35:002
3423141991412,1cyclictest0-21swapper/221:35:002
3423141991412,1cyclictest0-21swapper/221:15:032
3423141991412,1cyclictest0-21swapper/219:15:012
3423141991412,1cyclictest0-21swapper/200:25:012
3423141991411,1cyclictest0-21swapper/223:05:292
3423141991411,1cyclictest0-21swapper/222:40:322
3423141991411,1cyclictest0-21swapper/222:01:142
3423141991411,1cyclictest0-21swapper/220:40:012
3423141991411,1cyclictest0-21swapper/220:20:262
3423141991411,1cyclictest0-21swapper/220:00:192
3423141991411,1cyclictest0-21swapper/200:40:012
3423141991410,2cyclictest0-21swapper/221:20:472
342314099149,2cyclictest3851704-21mta-sts-daemon21:47:191
342314099149,1cyclictest383433398rtkit-daemon19:48:471
3423140991411,2cyclictest3853165-21irqcore00:10:241
3423140991411,2cyclictest3851705-21mta-sts-daemon20:05:241
3423140991411,2cyclictest3851703-21mta-sts-daemon19:55:301
3423140991411,2cyclictest3698565-21aten_repower_en22:30:191
3423140991411,2cyclictest3685530-21kthreadcore22:20:241
3423140991411,2cyclictest3529351-21kthreadcore20:30:261
3423140991411,2cyclictest3514755-21kthreadcore20:20:261
3423140991411,2cyclictest3459941-21kthreadcore19:35:261
3423140991411,2cyclictest0-21swapper/119:15:021
3423140991411,2cyclictest0-21swapper/100:05:011
342313999147,6cyclictest0-21swapper/000:05:170
342313999147,6cyclictest0-21swapper/000:05:170
342313999145,5cyclictest0-21swapper/021:32:480
342313999145,5cyclictest0-21swapper/021:32:480
3423139991412,1cyclictest3851705-21mta-sts-daemon20:30:230
3423139991411,2cyclictest3868685-21kernelversion00:20:260
3423139991411,2cyclictest3851702-21mta-sts-daemon19:49:480
3423139991411,2cyclictest3632887-21kthreadcore21:45:260
3423139991411,2cyclictest3488093-21systemd20:00:000
3423139991411,2cyclictest3459941-21kthreadcore19:35:270
3423139991410,3cyclictest3434628-21kthreadcore19:15:250
342313999140,2cyclictest3450483-21cat19:30:000
2649091144,2phc2sys0-21swapper/322:30:003
2649091142,2phc2sys0-21swapper/321:15:333
2649091140,3phc2sys0-21swapper/322:05:433
2649091140,2phc2sys0-21swapper/323:51:423
2649091140,2phc2sys0-21swapper/323:27:453
2649091140,2phc2sys0-21swapper/320:50:213
2649091140,2phc2sys0-21swapper/320:05:273
342314199131,7cyclictest0-21swapper/222:30:012
3423141991311,1cyclictest0-21swapper/223:55:222
3423141991311,1cyclictest0-21swapper/223:35:262
3423141991311,1cyclictest0-21swapper/222:30:272
3423141991311,1cyclictest0-21swapper/221:00:352
3423141991311,1cyclictest0-21swapper/220:50:202
3423141991311,1cyclictest0-21swapper/219:40:002
3423141991311,1cyclictest0-21swapper/219:35:012
3423141991310,2cyclictest0-21swapper/222:55:302
3423140991310,2cyclictest3610304-21kthreadcore21:30:251
3423140991310,2cyclictest3610304-21kthreadcore21:30:251
3423140991310,2cyclictest3493208-21latency20:00:271
3423140991310,2cyclictest3451971-21irqrtprio19:30:251
3423140991310,2cyclictest3423310-21systemd-run19:10:021
342313999139,2cyclictest3569713-21latency_hist21:05:010
342313999133,5cyclictest3488767-21cstates20:00:200
3423139991310,2cyclictest3851704-21mta-sts-daemon21:10:160
2649091133,2phc2sys0-21swapper/322:35:423
2649091130,2phc2sys0-21swapper/323:18:373
2649091130,2phc2sys0-21swapper/321:55:593
2649091130,2phc2sys0-21swapper/321:32:263
2649091130,2phc2sys0-21swapper/321:32:253
2649091130,2phc2sys0-21swapper/319:35:183
2649091130,2phc2sys0-21swapper/300:29:353
34747952120,4sleep30-21swapper/319:45:313
342314199129,1cyclictest0-21swapper/219:55:192
342314199129,1cyclictest0-21swapper/219:28:112
342314199128,2cyclictest0-21swapper/200:05:232
342314199128,2cyclictest0-21swapper/200:05:232
342314199127,2cyclictest0-21swapper/219:50:162
342314199121,7cyclictest0-21swapper/219:10:012
3423141991210,1cyclictest0-21swapper/223:50:202
3423141991210,1cyclictest0-21swapper/220:55:242
342314199120,9cyclictest0-21swapper/220:45:002
342313999125,5cyclictest3851875-21systemd-journal19:10:010
2649091120,3phc2sys0-21swapper/321:40:183
2649091120,2phc2sys0-21swapper/323:55:193
2649091120,2phc2sys0-21swapper/322:56:493
2649091120,2phc2sys0-21swapper/322:33:453
2649091120,2phc2sys0-21swapper/320:20:183
2649091120,2phc2sys0-21swapper/319:18:033
2649091120,1phc2sys0-21swapper/300:22:403
2649091113,3phc2sys0-21swapper/321:45:223
2649091113,2phc2sys0-21swapper/322:10:493
2649091112,3phc2sys0-21swapper/322:15:293
2649091112,2phc2sys0-21swapper/323:31:543
2649091110,3phc2sys0-21swapper/323:21:593
2649091110,2phc2sys0-21swapper/322:41:183
2649091110,2phc2sys0-21swapper/320:55:423
2649091110,2phc2sys0-21swapper/319:33:123
2649091110,1phc2sys0-21swapper/320:44:553
2649091110,1phc2sys0-21swapper/319:55:133
2649091110,1phc2sys0-21swapper/319:41:343
2649091110,1phc2sys0-21swapper/300:04:083
2649091102,3phc2sys0-21swapper/321:22:423
2649091101,2phc2sys0-21swapper/323:10:003
2649091101,2phc2sys0-21swapper/319:30:013
2649091100,3phc2sys0-21swapper/323:00:313
2649091100,3phc2sys0-21swapper/319:50:163
2649091100,2phc2sys0-21swapper/323:35:593
2649091100,2phc2sys0-21swapper/321:25:313
2649091100,2phc2sys0-21swapper/320:35:293
2649091100,2phc2sys0-21swapper/320:01:353
2649091100,2phc2sys0-21swapper/300:33:263
3729390290,2sleep30-21swapper/322:50:193
264909191,2phc2sys0-21swapper/320:45:243
264909191,2phc2sys0-21swapper/320:25:323
264909190,2phc2sys0-21swapper/321:05:193
264909190,2phc2sys0-21swapper/321:03:433
264909190,2phc2sys0-21swapper/320:30:203
264909190,2phc2sys0-21swapper/320:16:453
264909190,2phc2sys0-21swapper/320:13:413
264909190,2phc2sys0-21swapper/320:13:413
264909190,2phc2sys0-21swapper/319:05:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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