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2025-12-20 - 22:53
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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 Sat Dec 20, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
44768622050,2sleep30-21swapper/308:40:013
5205892600,1sleep30-21swapper/309:40:003
5365002250,2sleep20-21swapper/209:53:382
336775992219,2cyclictest641540-21latency_hist11:20:001
33677499211,19cyclictest575615-21apt-get10:28:280
336774992017,2cyclictest342997-21cpuspeed_turbos07:15:010
336774992017,2cyclictest1326-21systemd-logind12:10:020
336775991916,2cyclictest1290-21dbus-daemon09:20:011
336774991916,2cyclictest532784-21apt-key09:50:010
336774991916,2cyclictest496518-21apt-config09:20:010
33677699182,11cyclictest0-21swapper/208:00:012
336776991816,1cyclictest0-21swapper/207:45:012
336776991815,1cyclictest0-21swapper/207:15:022
336775991815,2cyclictest399410-21grep08:00:001
336775991815,2cyclictest0-21swapper/109:15:011
336774991815,2cyclictest490248-21apt-key09:15:010
336774991815,2cyclictest423563-21latency_hist08:20:010
336774991815,2cyclictest336772-21cyclictest07:50:020
336774991814,3cyclictest1313-21gmain10:20:010
33677499181,16cyclictest241rcuc/011:33:330
2902298180,9rtkit-daemon2016-21snmpd08:41:050
336776991714,1cyclictest0-21swapper/207:30:002
33677699171,10cyclictest0-21swapper/211:20:012
336775991714,2cyclictest466108-21sh08:55:011
336775991714,2cyclictest411274-21unixbench_singl08:08:411
336775991714,2cyclictest369299-21munin-plugin-st07:35:021
336775991714,2cyclictest1326-21systemd-logind11:45:001
336775991714,2cyclictest1288-1atopacctd08:33:371
336775991713,3cyclictest1326-21systemd-logind12:05:021
336774991714,2cyclictest713864-21sendmail12:20:010
336774991714,2cyclictest336772-21cyclictest12:38:370
336774991714,2cyclictest1327-21in:imuxsock12:15:020
336774991713,3cyclictest241rcuc/007:20:010
336774991713,3cyclictest241rcuc/007:20:010
336774991712,4cyclictest431420-21kthreadcore08:28:350
33677499171,12cyclictest661036-21if_enp1s0.811:38:350
33677499170,5cyclictest546698-21sed10:03:330
336776991614,1cyclictest0-21swapper/210:35:022
336776991614,1cyclictest0-21swapper/210:30:022
336776991614,1cyclictest0-21swapper/207:38:322
336776991613,1cyclictest0-21swapper/212:28:462
336776991613,1cyclictest0-21swapper/211:40:002
336776991613,1cyclictest0-21swapper/208:55:002
33677699161,10cyclictest0-21swapper/210:00:012
336775991613,2cyclictest738543-21munin-run12:40:021
336775991613,2cyclictest598739-21pmu-power10:43:401
336775991613,2cyclictest593368-21cron10:40:011
336775991613,2cyclictest1-21systemd10:05:001
336775991613,2cyclictest0-21swapper/112:15:011
336775991612,3cyclictest700929-21latency12:08:341
336775991612,3cyclictest2016-21snmpd11:13:351
336775991612,3cyclictest1327-21in:imuxsock09:35:011
33677499168,4cyclictest363722-21tail07:33:300
33677499165,6cyclictest496229-21sh09:24:560
336774991613,2cyclictest381571-21systemd-run07:45:020
336776991513,1cyclictest0-21swapper/207:23:182
336776991512,1cyclictest0-21swapper/212:20:012
336776991512,1cyclictest0-21swapper/212:03:302
336776991512,1cyclictest0-21swapper/211:01:242
336776991512,1cyclictest0-21swapper/209:15:012
336776991512,1cyclictest0-21swapper/208:40:012
336776991512,1cyclictest0-21swapper/208:08:342
336776991512,1cyclictest0-21swapper/208:05:002
33677599159,5cyclictest0-21swapper/110:20:001
33677599151,3cyclictest404818-21ps08:03:391
336775991512,2cyclictest718821-21kthreadcore12:23:391
336775991512,2cyclictest448903-21gltestperf08:43:311
336775991512,2cyclictest1326-21systemd-logind12:30:011
336775991512,2cyclictest0-21swapper/108:20:001
336775991511,3cyclictest673533-21kthreadcore11:48:351
33677499157,3cyclictest16-21ksoftirqd/011:00:000
33677499155,5cyclictest538595-21cat09:53:430
33677499154,4cyclictest501rcuop/211:23:270
33677499151,8cyclictest257-21systemd-journal09:40:000
336774991512,2cyclictest715234-21hddtemp_smartct12:23:350
336774991512,2cyclictest583832-21kthreadcore10:33:350
336774991512,2cyclictest471291-21proc_pri08:58:390
336774991512,2cyclictest336772-21cyclictest08:53:360
336774991512,2cyclictest1326-21systemd-logind08:35:020
336774991512,2cyclictest1288-1atopacctd07:38:360
336774991510,4cyclictest695845-21ls12:05:010
336774991510,1cyclictest0-21swapper/009:03:260
2902298150,1rtkit-daemon0-21swapper/109:59:161
2649091151,1phc2sys0-21swapper/312:23:383
336776991412,1cyclictest0-21swapper/207:18:312
336776991412,1cyclictest0-21swapper/207:18:312
336776991411,1cyclictest0-21swapper/210:08:342
336776991411,1cyclictest0-21swapper/210:03:342
336776991411,1cyclictest0-21swapper/208:58:302
336776991411,1cyclictest0-21swapper/208:48:332
336776991411,1cyclictest0-21swapper/208:23:272
336776991411,1cyclictest0-21swapper/207:50:012
336776991410,2cyclictest0-21swapper/208:15:012
336775991411,2cyclictest660299-21telnet11:38:311
336775991411,2cyclictest602331-21kthreadcore10:48:341
336775991411,2cyclictest582219-21cut10:33:311
336775991411,2cyclictest570658-21irqcore10:23:351
336775991411,2cyclictest556458-21sendmail_mailtr10:08:401
336775991411,2cyclictest528082-21irqcore09:48:331
336775991411,2cyclictest502575-21sh09:25:001
336775991411,2cyclictest478562-21head09:08:281
336775991411,2cyclictest477695-21unixbench-2d09:03:401
336775991411,2cyclictest466601-21aten_repower_po08:58:291
336775991411,2cyclictest424902-21if_enp1s008:23:331
336775991411,2cyclictest1327-21in:imuxsock11:25:011
336775991411,2cyclictest1288-1atopacctd08:27:251
336775991411,2cyclictest0-21swapper/111:35:011
336775991410,3cyclictest728328-21kthreadcore12:33:351
336775991410,3cyclictest710763-21kthreadcore12:18:351
336775991410,3cyclictest682183-21kthreadcore11:53:381
336775991410,3cyclictest459374-21unixbench-2d08:48:411
336775991410,3cyclictest383204-21irqrtprio07:48:341
336775991410,3cyclictest371734-21kthreadcore07:38:351
336775991410,3cyclictest358929-21kthreadcore07:28:381
33677499148,2cyclictest601rcuop/311:58:310
33677499145,5cyclictest0-21swapper/007:51:010
33677499144,4cyclictest635992-21sshd11:17:250
33677499144,3cyclictest521063-21sshd09:42:240
33677499141,4cyclictest404819-21grep08:03:390
336774991412,1cyclictest510904-21kthreadcore09:33:350
336774991411,2cyclictest727629-21irqrtprio12:33:340
336774991411,2cyclictest722020-21kthreadcore12:28:340
336774991411,2cyclictest678516-21cpuspeed_turbos11:53:320
336774991411,2cyclictest649436-21kthreadcore11:28:350
336774991411,2cyclictest634854-21pmu-power11:13:370
336774991411,2cyclictest624150-21aten_repower_fr11:08:280
336774991411,2cyclictest606176-21aten_repower_vo10:53:290
336774991411,2cyclictest592803-21ptp4l10:38:380
336774991411,2cyclictest572077-21kthreadcore10:23:360
336774991411,2cyclictest424691-21cut08:23:310
336774991411,2cyclictest417469-21latency_hist08:15:020
336774991411,2cyclictest407324-21kthreadcore08:08:340
336774991411,2cyclictest361166-21kthreadcore07:28:390
336774991410,3cyclictest554277-21kthreadcore10:08:350
336774991410,3cyclictest456308-21kthreadcore08:48:350
336774991410,3cyclictest336772-21cyclictest11:48:350
33677499140,9cyclictest600084-21aten_repower_po10:48:280
2902298140,1rtkit-daemon0-21swapper/111:07:051
2649091141,2phc2sys0-21swapper/307:13:313
336776991311,1cyclictest0-21swapper/212:33:372
336776991310,1cyclictest0-21swapper/212:38:362
336776991310,1cyclictest0-21swapper/212:13:402
336776991310,1cyclictest0-21swapper/211:48:412
336776991310,1cyclictest0-21swapper/211:30:012
336776991310,1cyclictest0-21swapper/211:08:292
336776991310,1cyclictest0-21swapper/210:58:292
336776991310,1cyclictest0-21swapper/210:48:362
336776991310,1cyclictest0-21swapper/210:23:332
336776991310,1cyclictest0-21swapper/210:18:352
336776991310,1cyclictest0-21swapper/209:48:342
336776991310,1cyclictest0-21swapper/209:35:002
336776991310,1cyclictest0-21swapper/209:23:322
336776991310,1cyclictest0-21swapper/209:18:352
336776991310,1cyclictest0-21swapper/209:03:372
336776991310,1cyclictest0-21swapper/208:43:382
336776991310,1cyclictest0-21swapper/207:53:362
33677699130,10cyclictest0-21swapper/208:20:012
33677599139,3cyclictest378739-21kthreadcore07:43:351
33677599139,3cyclictest354967-21kthreadcore07:23:361
33677599138,4cyclictest1290-21dbus-daemon08:15:011
33677599135,6cyclictest134050irq/121-eno109:53:311
336775991310,2cyclictest653214-21timerandwakeup11:28:411
336775991310,2cyclictest575623-21aten_repower_cu10:28:281
336775991310,2cyclictest521315-21aten_repower_vo09:43:311
336775991310,2cyclictest516715-21kthreadcore09:38:331
336775991310,2cyclictest389855-21kthreadcore07:53:351
336775991310,2cyclictest345530-21aten_repower_cu07:18:271
336775991310,2cyclictest345530-21aten_repower_cu07:18:271
336775991310,2cyclictest336772-21cyclictest10:13:381
33677499139,3cyclictest482417-21kthreadcore09:08:360
33677499139,3cyclictest354496-21kthreadcore07:23:360
33677499137,2cyclictest496406-21kworker/0:2+events09:28:320
33677499133,4cyclictest653678-21kworker/u16:2+events_unbound11:43:300
336774991310,2cyclictest557688-21aten_repower_vo10:13:280
336774991310,2cyclictest540185-21head09:58:310
336774991310,2cyclictest336613-21latency_hist07:10:020
336774991310,2cyclictest1109-21hwrng08:38:370
33677499130,8cyclictest393939-21chrt07:58:110
33677499130,5cyclictest621737-21cut11:03:360
2649091130,2phc2sys0-21swapper/311:38:323
2649091130,1phc2sys0-21swapper/308:31:013
33677699129,1cyclictest0-21swapper/212:08:342
33677699129,1cyclictest0-21swapper/211:50:592
33677699129,1cyclictest0-21swapper/211:33:352
33677699129,1cyclictest0-21swapper/210:50:432
33677699129,1cyclictest0-21swapper/208:33:252
33677699129,1cyclictest0-21swapper/208:28:332
336776991210,1cyclictest0-21swapper/211:23:332
336776991210,1cyclictest0-21swapper/210:38:352
336776991210,1cyclictest0-21swapper/209:43:332
336776991210,1cyclictest0-21swapper/209:40:022
336776991210,1cyclictest0-21swapper/209:08:342
33677699120,7cyclictest508518-21chrt09:29:492
33677699120,10cyclictest0-21swapper/211:58:272
33677599129,2cyclictest685507-21irqrtprio11:58:331
33677599129,2cyclictest620807-21kthreadcore11:03:361
33677599129,2cyclictest612180-21aten_repower_vo10:58:301
33677599129,2cyclictest505551-21kthreadcore09:28:351
33677599129,2cyclictest443438-21kthreadcore08:38:361
33677599129,2cyclictest340333-21kthreadcore07:13:351
33677599125,5cyclictest1426-21gdbus10:53:391
33677499129,2cyclictest595026-21irqcore10:43:350
2649091120,2phc2sys0-21swapper/310:53:393
2649091120,1phc2sys0-21swapper/311:04:053
33677699119,1cyclictest0-21swapper/211:43:352
33677699119,1cyclictest0-21swapper/211:13:312
33677699119,1cyclictest0-21swapper/210:13:322
33677699119,1cyclictest0-21swapper/207:33:352
33677699118,1cyclictest0-21swapper/212:23:422
33677699111,3cyclictest5939562sleep210:43:282
3317692111,8sleep1331980-21hddtemp_smartct07:08:311
2649091111,2phc2sys0-21swapper/311:53:313
2649091111,2phc2sys0-21swapper/309:57:133
2649091110,2phc2sys0-21swapper/312:35:493
2649091110,2phc2sys0-21swapper/309:01:383
2649091110,2phc2sys0-21swapper/308:03:283
2649091110,2phc2sys0-21swapper/307:58:353
2649091110,1phc2sys0-21swapper/311:57:273
2649091110,1phc2sys0-21swapper/310:30:433
2649091110,1phc2sys0-21swapper/308:45:283
2649091110,1phc2sys0-21swapper/308:20:483
2649091110,1phc2sys0-21swapper/307:51:133
2649091102,2phc2sys0-21swapper/310:08:353
2649091102,2phc2sys0-21swapper/310:03:343
2649091102,2phc2sys0-21swapper/307:33:303
2649091101,2phc2sys0-21swapper/311:28:373
2649091101,2phc2sys0-21swapper/311:13:273
2649091101,2phc2sys0-21swapper/309:20:023
2649091101,2phc2sys0-21swapper/307:23:283
2649091100,2phc2sys0-21swapper/312:30:013
2649091100,2phc2sys0-21swapper/310:57:193
2649091100,2phc2sys0-21swapper/310:20:013
2649091100,2phc2sys0-21swapper/309:35:013
2649091100,2phc2sys0-21swapper/309:28:283
2649091100,2phc2sys0-21swapper/309:08:283
2649091100,2phc2sys0-21swapper/308:41:143
2649091100,2phc2sys0-21swapper/307:38:353
2649091100,1phc2sys0-21swapper/311:33:473
2649091100,1phc2sys0-21swapper/310:47:063
2649091100,1phc2sys0-21swapper/310:37:403
2649091100,1phc2sys0-21swapper/310:13:203
2649091100,1phc2sys0-21swapper/309:51:163
2649091100,1phc2sys0-21swapper/309:10:533
2649091100,1phc2sys0-21swapper/308:15:113
2649091100,1phc2sys0-21swapper/307:48:413
572543290,2sleep30-21swapper/310:23:363
264909193,2phc2sys0-21swapper/312:05:013
264909192,1phc2sys0-21swapper/308:50:053
264909191,2phc2sys0-21swapper/309:49:563
264909191,2phc2sys0-21swapper/308:13:383
264909191,2phc2sys0-21swapper/307:08:343
264909191,1phc2sys0-21swapper/312:08:293
264909190,2phc2sys0-21swapper/312:33:303
264909190,2phc2sys0-21swapper/311:18:273
264909190,2phc2sys0-21swapper/310:43:373
264909190,2phc2sys0-21swapper/309:43:303
264909190,2phc2sys0-21swapper/307:44:033
264909190,2phc2sys0-21swapper/307:15:033
264909190,2phc2sys0-21swapper/307:15:033
264909190,1phc2sys0-21swapper/311:40:203
264909190,1phc2sys0-21swapper/308:25:323
264909190,1phc2sys0-21swapper/308:05:443
264909181,2phc2sys0-21swapper/308:55:063
264909181,2phc2sys0-21swapper/307:26:453
264909180,2phc2sys0-21swapper/312:15:033
264909180,2phc2sys0-21swapper/312:13:303
264909180,2phc2sys0-21swapper/311:46:253
264909180,2phc2sys0-21swapper/311:08:383
264909180,2phc2sys0-21swapper/310:25:023
264909180,1phc2sys0-21swapper/311:21:483
330977270,3sleep20-21swapper/207:05:362
264909170,1phc2sys0-21swapper/309:22:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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