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2026-04-28 - 06:39
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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 Tue Apr 28, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31653862990,2sleep10-21swapper/119:35:401
31653862990,2sleep10-21swapper/119:35:401
35757682930,2sleep13575750-21ssh00:25:381
32616302810,1sleep016-21ksoftirqd/020:55:020
35731932740,1sleep03573191-21ssh00:22:040
383433398250,8rtkit-daemon3851705-21mta-sts-daemon23:39:281
3127389992522,2cyclictest3377905-21grep22:15:011
3127388992515,2cyclictest3400941-21apt-get22:30:320
3127389992421,2cyclictest3223589-21awk20:25:001
312738899233,18cyclictest191rcu_preempt21:15:460
3127388992320,2cyclictest1-21systemd20:00:000
3127390992219,1cyclictest0-21swapper/222:40:002
3127389992219,2cyclictest3423214-21dump-pmu-power22:45:001
3127390992118,1cyclictest0-21swapper/220:20:002
3127389992118,2cyclictest3415697-21apt-key22:40:001
3127389992118,2cyclictest3217337-21wc20:20:001
3127388992118,2cyclictest3211107-21munin-plugin-st20:15:000
312739099201,6cyclictest0-21swapper/221:40:322
3127390992011,4cyclictest0-21swapper/223:19:312
3127389992017,2cyclictest1326-21systemd-logind22:25:011
3127389992017,2cyclictest0-21swapper/121:50:001
3127389992016,2cyclictest134050irq/121-eno122:45:431
312738899209,6cyclictest0-21swapper/000:36:460
3127388992012,7cyclictest3851704-21mta-sts-daemon22:56:370
312738899201,15cyclictest0-21swapper/021:26:150
2649091200,2phc2sys0-21swapper/322:30:423
3127390991917,1cyclictest0-21swapper/200:35:022
3127389991916,2cyclictest3134054-21aten_repower_po19:15:021
3127389991915,3cyclictest1426-21gdbus00:40:011
3127389991911,3cyclictest191rcu_preempt23:14:441
3127389991910,4cyclictest0-21swapper/100:15:011
312738899199,6cyclictest0-21swapper/021:45:000
312738899199,5cyclictest0-21swapper/023:18:050
312738899192,2cyclictest3498937-21awk23:35:000
2649091190,2phc2sys0-21swapper/300:33:163
34168242180,3sleep03416828-21fschecks_time22:40:350
3127390991816,1cyclictest0-21swapper/221:17:202
3127390991816,1cyclictest0-21swapper/220:50:022
3127390991816,1cyclictest0-21swapper/220:50:022
3127390991815,1cyclictest0-21swapper/223:30:002
3127390991815,1cyclictest0-21swapper/223:05:002
3127390991810,5cyclictest0-21swapper/222:25:312
312738999188,3cyclictest501rcuop/220:36:051
312738999188,3cyclictest3288554-21cstates21:15:351
3127389991815,2cyclictest3522554-21fschecks_time23:50:341
3127389991815,2cyclictest3519509-21head23:45:441
3127389991815,2cyclictest3491170-21apt-get23:30:001
3127389991815,2cyclictest3368649-21mailstats22:05:431
3127389991815,2cyclictest1290-21dbus-daemon20:10:011
3127389991814,3cyclictest3269337-21kthreadcore21:00:361
3127389991814,3cyclictest3263084-21kthreadcore20:55:381
312738899189,8cyclictest0-21swapper/000:10:330
312738899188,6cyclictest0-21swapper/000:34:050
312738899188,5cyclictest0-21swapper/021:10:450
312738899184,7cyclictest3433004-21kthreadcore22:50:400
3127388991815,2cyclictest3544081-21idleruntime-cro00:05:010
3127388991815,2cyclictest3202570-21kthreadcore20:05:410
3127388991815,2cyclictest0-21swapper/022:40:000
3127388991813,4cyclictest3504556-21ptp4l23:35:440
3127388991813,1cyclictest3231330-21cut20:30:380
3127388991812,5cyclictest3247823-21ptp4l-jitter20:40:440
3127388991812,2cyclictest383433398rtkit-daemon00:09:140
2649191180,1ptp4l0-21swapper/323:35:393
2649091181,2phc2sys0-21swapper/321:51:103
2649091181,2phc2sys0-21swapper/300:09:463
2649091181,2phc2sys0-21swapper/300:03:573
2649091180,2phc2sys0-21swapper/323:19:403
3127390991714,1cyclictest0-21swapper/223:40:002
3127390991714,1cyclictest0-21swapper/223:10:442
3127390991714,1cyclictest0-21swapper/221:40:002
312738999178,3cyclictest501rcuop/220:32:481
312738999178,1cyclictest134050irq/121-eno121:55:331
312738999177,2cyclictest3161064-21kworker/u16:0+nfsiod21:28:441
3127389991714,2cyclictest3827634-1atopacctd20:51:051
3127389991714,2cyclictest3544112-21wc00:05:011
3127389991714,2cyclictest3445978-21systemd-run23:00:021
3127389991714,2cyclictest3186274-21latency_hist19:55:011
3127389991714,2cyclictest3160955-21idleruntime-cro19:35:001
3127389991714,2cyclictest1996-21runrttasks00:07:321
3127389991714,1cyclictest191rcu_preempt21:35:391
3127389991713,2cyclictest383433398rtkit-daemon19:43:381
3127389991712,1cyclictest601rcuop/321:13:171
3127389991711,2cyclictest134050irq/121-eno123:00:381
3127389991710,1cyclictest601rcuop/322:51:261
312738899178,7cyclictest3321436-21tr21:35:390
312738899178,5cyclictest0-21swapper/021:52:370
312738899171,8cyclictest0-21swapper/022:00:330
3127388991714,2cyclictest3134922-21latency_hist19:15:020
2649091170,3phc2sys0-21swapper/322:49:533
2649091170,1phc2sys0-21swapper/321:18:383
312739099169,3cyclictest0-21swapper/220:40:462
312739099161,6cyclictest0-21swapper/200:30:012
3127390991613,2cyclictest0-21swapper/220:10:412
3127390991613,1cyclictest0-21swapper/223:53:162
3127390991613,1cyclictest0-21swapper/223:45:352
3127390991613,1cyclictest0-21swapper/223:35:012
3127390991613,1cyclictest0-21swapper/222:54:492
3127390991613,1cyclictest0-21swapper/222:45:362
3127390991613,1cyclictest0-21swapper/221:20:432
3127390991613,1cyclictest0-21swapper/221:10:002
3127390991613,1cyclictest0-21swapper/219:15:012
3127390991612,2cyclictest0-21swapper/222:15:412
312738999168,3cyclictest501rcuop/222:16:171
312738999168,3cyclictest501rcuop/221:06:191
312738999168,3cyclictest501rcuop/220:01:551
312738999168,1cyclictest501rcuop/223:15:051
312738999167,3cyclictest501rcuop/219:29:571
312738999167,1cyclictest501rcuop/222:30:271
312738999167,1cyclictest501rcuop/200:32:291
312738999166,3cyclictest501rcuop/220:40:301
312738999163,6cyclictest3208616-21kthreadcore20:10:401
3127389991614,1cyclictest3313587-21kthreadcore21:30:411
3127389991613,2cyclictest3851704-21mta-sts-daemon21:20:171
3127389991613,2cyclictest3851703-21mta-sts-daemon21:53:171
3127389991613,2cyclictest3512204-21sensors_fan23:40:441
3127389991612,3cyclictest3407965-21kworker/u16:3+nfsiod23:55:531
3127389991610,3cyclictest3456973-21kthreadcore23:05:401
3127389991610,1cyclictest501rcuop/223:21:581
312738999160,3cyclictest0-21swapper/119:57:181
312738899169,2cyclictest3248606-21sh20:49:550
312738899169,2cyclictest3248606-21sh20:49:550
312738899168,4cyclictest3368318-21missed_timers22:05:410
312738899166,1cyclictest32250361irqcore20:25:380
312738899166,1cyclictest0-21swapper/000:15:340
312738899165,7cyclictest3834332-21rtkit-daemon19:28:440
312738899164,5cyclictest3453430-21kworker/u16:0+nfsiod23:20:450
3127388991614,1cyclictest3851702-21mta-sts-daemon19:35:410
3127388991614,1cyclictest3851702-21mta-sts-daemon19:35:410
3127388991613,2cyclictest3880722-21gmain21:45:050
3127388991613,2cyclictest3485245-21irqrtprio23:25:380
3127388991613,2cyclictest3237004-21fschecks_count20:35:350
3127388991613,2cyclictest3127386-21cyclictest22:20:400
3127388991612,3cyclictest3827634-1atopacctd22:15:380
3127388991612,3cyclictest3161064-21kworker/u16:0+nfsiod21:34:520
3127388991611,4cyclictest3466667-21timerandwakeup23:10:450
3127388991610,5cyclictest3217794-21aten2.4-expect20:20:320
2649091160,4phc2sys0-21swapper/319:20:323
312739099158,5cyclictest0-21swapper/222:00:322
3127390991513,1cyclictest0-21swapper/222:25:012
3127390991513,1cyclictest0-21swapper/222:05:332
3127390991513,1cyclictest0-21swapper/220:55:012
3127390991512,2cyclictest0-21swapper/200:35:112
3127390991512,1cyclictest0-21swapper/223:05:462
3127390991512,1cyclictest0-21swapper/222:55:332
3127390991512,1cyclictest0-21swapper/222:00:012
3127390991512,1cyclictest0-21swapper/221:25:332
3127390991512,1cyclictest0-21swapper/220:35:372
3127390991512,1cyclictest0-21swapper/200:23:372
3127390991511,2cyclictest0-21swapper/219:55:432
3127390991511,2cyclictest0-21swapper/219:35:402
3127390991511,2cyclictest0-21swapper/219:35:402
312738999159,1cyclictest501rcuop/220:25:341
312738999159,1cyclictest501rcuop/200:18:221
312738999158,3cyclictest501rcuop/219:45:161
312738999158,2cyclictest501rcuop/223:30:091
312738999157,3cyclictest501rcuop/219:21:431
312738999154,5cyclictest0-21swapper/122:02:221
3127389991512,2cyclictest3851704-21mta-sts-daemon00:20:181
3127389991512,2cyclictest3329499-21kthreadcore21:40:401
3127389991511,3cyclictest3253597-21kthreadcore20:45:411
3127389991511,3cyclictest3253597-21kthreadcore20:45:411
3127389991511,3cyclictest3138330-21kthreadcore19:15:411
3127389991510,1cyclictest501rcuop/222:28:311
312738899159,5cyclictest3407965-21kworker/u16:3+nfsiod23:06:280
312738899157,2cyclictest3298993-21kthreadcore21:20:390
312738899155,5cyclictest3376408-21sed22:10:440
312738899153,8cyclictest3515070-21grep23:45:370
3127388991512,2cyclictest3851703-21mta-sts-daemon19:43:110
3127388991512,2cyclictest3523298-21kthreadcore23:50:370
3127388991512,2cyclictest3273981-21systemd-run21:05:010
3127388991512,2cyclictest3142499-21latency_hist19:20:020
3127388991512,2cyclictest0-21swapper/019:50:010
3127388991512,2cyclictest0-21swapper/000:00:000
3127388991511,3cyclictest3851704-21mta-sts-daemon20:55:370
3127388991511,3cyclictest3508353-21kthreadcore23:40:370
3127388991511,3cyclictest3302970-21kworker/u16:3+nfsiod21:57:460
2649091151,4phc2sys0-21swapper/322:40:323
2649091151,4phc2sys0-21swapper/321:05:323
2649091151,3phc2sys0-21swapper/319:45:123
2649091150,2phc2sys0-21swapper/322:22:433
2649091150,1phc2sys0-21swapper/323:02:243
312739099142,7cyclictest31488262sleep219:25:322
312739099142,4cyclictest0-21swapper/222:40:322
3127390991411,1cyclictest0-21swapper/223:40:372
3127390991411,1cyclictest0-21swapper/222:31:552
3127390991411,1cyclictest0-21swapper/222:11:242
3127390991411,1cyclictest0-21swapper/221:54:302
3127390991411,1cyclictest0-21swapper/221:46:342
3127390991411,1cyclictest0-21swapper/221:10:332
3127390991411,1cyclictest0-21swapper/221:00:332
3127390991411,1cyclictest0-21swapper/220:35:002
3127390991411,1cyclictest0-21swapper/220:25:442
3127390991411,1cyclictest0-21swapper/219:35:002
3127390991411,1cyclictest0-21swapper/200:02:192
3127390991410,2cyclictest0-21swapper/223:57:162
3127390991410,2cyclictest0-21swapper/200:05:132
312738899145,7cyclictest0-21swapper/022:45:340
312738899143,6cyclictest0-21swapper/019:20:050
312738899141,8cyclictest3274437-21aten_repower_vo21:05:330
3127388991411,2cyclictest3851703-21mta-sts-daemon20:03:000
3127388991411,2cyclictest3446384-21sh23:00:330
3127388991411,2cyclictest3183059-21sort19:50:390
3127388991410,3cyclictest3397294-21kthreadcore22:25:390
3127388991410,3cyclictest3216232-21latency20:15:420
2649091140,4phc2sys0-21swapper/323:56:253
2649091140,3phc2sys0-21swapper/321:29:473
2649091140,2phc2sys0-21swapper/321:48:023
312739099139,2cyclictest0-21swapper/219:50:382
312739099132,8cyclictest0-21swapper/219:20:312
3127390991311,1cyclictest0-21swapper/223:20:372
3127390991311,1cyclictest0-21swapper/220:10:012
3127390991311,1cyclictest0-21swapper/220:05:022
3127390991311,1cyclictest0-21swapper/219:45:012
3127390991310,1cyclictest0-21swapper/200:15:382
3127390991310,1cyclictest0-21swapper/200:13:072
3127388991310,2cyclictest3156146-21irqcore19:30:370
3127388991310,2cyclictest0-21swapper/000:25:350
2649091131,2phc2sys0-21swapper/319:10:393
2649091130,4phc2sys0-21swapper/321:58:133
2649091130,3phc2sys0-21swapper/319:27:343
2649091130,3phc2sys0-21swapper/300:17:453
2649091130,2phc2sys0-21swapper/323:34:433
2649091130,1phc2sys0-21swapper/322:28:033
312739099129,1cyclictest0-21swapper/221:30:042
3127390991210,1cyclictest0-21swapper/221:00:022
3127390991210,1cyclictest0-21swapper/219:45:442
3127390991210,1cyclictest0-21swapper/219:15:032
3127388991210,1cyclictest0-21swapper/019:10:010
2649091121,2phc2sys0-21swapper/322:14:193
2649091120,4phc2sys0-21swapper/323:41:383
2649091120,2phc2sys0-21swapper/321:30:093
2649091120,2phc2sys0-21swapper/320:38:233
2649091120,2phc2sys0-21swapper/300:21:363
2649091120,1phc2sys0-21swapper/320:54:563
312739099119,1cyclictest0-21swapper/220:20:362
312738999114,2cyclictest134050irq/121-eno119:10:011
2649091112,2phc2sys0-21swapper/300:10:023
2649091111,2phc2sys0-21swapper/323:09:543
2649091110,2phc2sys0-21swapper/322:55:033
2649091110,2phc2sys0-21swapper/321:21:433
2649091110,2phc2sys0-21swapper/321:10:333
2649091110,2phc2sys0-21swapper/319:30:433
2649091110,1phc2sys0-21swapper/323:14:183
2649091110,1phc2sys0-21swapper/322:05:403
2649091110,1phc2sys0-21swapper/319:37:203
2649091110,1phc2sys0-21swapper/319:37:203
312739099107,1cyclictest0-21swapper/219:10:022
2649091106,2phc2sys0-21swapper/323:22:343
2649091102,2phc2sys0-21swapper/322:50:103
2649091101,2phc2sys0-21swapper/323:45:333
2649091101,2phc2sys0-21swapper/323:27:133
2649091101,2phc2sys0-21swapper/320:00:443
2649091101,2phc2sys0-21swapper/319:40:403
2649091101,2phc2sys0-21swapper/319:15:483
2649091101,2phc2sys0-21swapper/300:35:363
2649091100,4phc2sys0-21swapper/320:20:313
2649091100,4phc2sys0-21swapper/300:25:333
2649091100,2phc2sys0-21swapper/323:52:313
2649091100,2phc2sys0-21swapper/322:35:273
2649091100,2phc2sys0-21swapper/322:15:193
2649091100,2phc2sys0-21swapper/322:04:573
2649091100,2phc2sys0-21swapper/321:38:513
2649091100,2phc2sys0-21swapper/320:10:383
2649091100,2phc2sys0-21swapper/319:05:343
2649091100,1phc2sys0-21swapper/320:55:583
264909191,2phc2sys0-21swapper/321:00:113
264909191,2phc2sys0-21swapper/320:15:473
264909190,2phc2sys0-21swapper/321:40:513
264909190,2phc2sys0-21swapper/320:48:293
264909190,2phc2sys0-21swapper/320:48:293
264909190,2phc2sys0-21swapper/320:40:353
264909190,2phc2sys0-21swapper/320:25:373
264909190,2phc2sys0-21swapper/320:05:093
264909190,2phc2sys0-21swapper/319:50:023
264909181,2phc2sys0-21swapper/320:30:253
264909180,1phc2sys0-21swapper/319:55:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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