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2026-04-15 - 22:26
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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 Apr 15, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
51074521100,1sleep00-21swapper/012:06:320
42402221000,1sleep00-21swapper/011:10:560
3090462440,0sleep0309049-21base6409:55:000
2870452290,2sleep20-21swapper/209:40:512
8712299259,6cyclictest0-21swapper/010:25:010
87122992513,10cyclictest542184-21latency_hist12:30:020
4726842250,2sleep30-21swapper/311:41:013
8712299249,10cyclictest0-21swapper/010:30:490
87122992419,4cyclictest1290-21dbus-daemon09:25:010
87122992418,5cyclictest481960-21systemd11:50:000
87122992418,5cyclictest1-21systemd12:40:010
87122992412,8cyclictest87120-21cyclictest10:15:010
87122992412,8cyclictest446698-21kthreadcore11:25:560
87122992412,8cyclictest446698-21kthreadcore11:25:560
87124992320,1cyclictest0-21swapper/209:40:022
87123992314,4cyclictest0-21swapper/112:20:491
8712299239,6cyclictest0-21swapper/009:20:010
87122992318,4cyclictest293913-21ssh09:45:020
87122992317,5cyclictest1290-21dbus-daemon11:21:010
87122992310,5cyclictest465090-21pmu-power11:36:000
87123992219,2cyclictest278089-21apt-key09:35:011
8712299227,6cyclictest0-21swapper/010:52:490
87122992216,5cyclictest277840-21latency_hist09:35:000
87122992216,5cyclictest133763-21wc07:45:000
87122992216,5cyclictest1290-21dbus-daemon07:15:000
87122992216,5cyclictest102208-21sh07:20:000
87122992210,5cyclictest330233-21/usr/sbin/munin10:06:020
5414552220,1sleep10-21swapper/112:28:411
87123992118,2cyclictest392160-21latency_hist10:50:021
8712299218,4cyclictest0-21swapper/010:40:500
8712299217,6cyclictest0-21swapper/010:37:480
87122992115,5cyclictest0-21swapper/008:45:010
87122992110,10cyclictest0-21swapper/011:00:570
8712299210,5cyclictest285577-21ssh09:39:530
2415692210,2sleep20-21swapper/209:10:532
87124992018,1cyclictest0-21swapper/207:40:012
87123992017,2cyclictest93600-21sh07:15:011
87123992017,2cyclictest459600-21systemd-run11:35:011
87123992017,2cyclictest316656-21/usr/sbin/munin10:00:011
87123992017,2cyclictest1290-21dbus-daemon09:45:011
8712299209,10cyclictest0-21swapper/012:11:000
8712299207,6cyclictest0-21swapper/010:25:550
8712299206,6cyclictest0-21swapper/008:00:510
8712299206,5cyclictest0-21swapper/012:00:590
8712299202,4cyclictest0-21swapper/011:54:550
8712299201,8cyclictest0-21swapper/011:32:500
87122992014,5cyclictest437109-21systemd11:20:010
87122992014,5cyclictest247904-21systemd-run09:15:010
87122992014,5cyclictest1290-21dbus-daemon12:25:010
87122992014,5cyclictest0-21swapper/011:00:000
87122992013,3cyclictest70-21kcompactd007:50:010
87122992013,2cyclictest549331-21idleruntime-cro12:35:000
87122992013,2cyclictest324087-21sh10:05:000
87122992013,2cyclictest221545-21cat08:55:000
87122992012,3cyclictest3827634-1atopacctd09:45:560
8712299201,17cyclictest127270-21munin-run07:40:000
2649091200,6phc2sys0-21swapper/309:49:553
2649091200,2phc2sys0-21swapper/311:10:133
8712399197,3cyclictest3851703-21mta-sts-daemon11:13:341
87123991916,2cyclictest183767-21dump-pmu-power08:25:001
87123991911,3cyclictest3851702-21mta-sts-daemon11:37:031
8712299199,5cyclictest3851705-21mta-sts-daemon08:16:030
8712299197,4cyclictest1109-21hwrng10:18:330
8712299195,6cyclictest0-21swapper/011:40:100
87122991913,5cyclictest3851702-21mta-sts-daemon08:05:570
87122991913,2cyclictest3834328-21sendmail-mta09:04:230
87122991912,6cyclictest121203-21latency_hist07:35:020
87122991912,2cyclictest314836-21mailstats09:56:010
87122991912,2cyclictest197274-21cut08:35:520
87122991912,2cyclictest0-21swapper/010:46:030
87122991912,2cyclictest0-21swapper/009:00:010
87122991911,3cyclictest3851702-21mta-sts-daemon07:55:580
87122991910,4cyclictest146238-21latency_hist07:55:000
8712299190,1cyclictest134050irq/121-eno108:25:500
2649091190,2phc2sys0-21swapper/311:03:153
8712499181,8cyclictest0-21swapper/210:10:002
8712499181,8cyclictest0-21swapper/210:00:002
87123991815,2cyclictest496862-21grep12:00:001
87123991815,2cyclictest483136-21fschecks_time11:50:531
87123991815,2cyclictest3824500-21cron08:40:001
87123991815,2cyclictest326827-21tr10:05:551
87123991815,2cyclictest270491-21munin-plugin-st09:30:021
87123991815,2cyclictest208897-21apt-key08:45:001
87123991815,2cyclictest127279-21sendmail07:40:001
87123991814,3cyclictest1326-21systemd-logind07:20:011
87123991810,2cyclictest3851703-21mta-sts-daemon10:44:581
87122991812,2cyclictest525328-21switchtime12:16:020
87122991811,2cyclictest494128-21kthreadcore11:55:570
87122991811,2cyclictest194401-21kthreadcore08:30:580
87122991811,2cyclictest167915-21kthreadcore08:10:560
87122991810,3cyclictest181974-21kthreadcore08:20:570
87122991810,3cyclictest108898-21aten_repower_en07:25:490
2649091181,3phc2sys0-21swapper/311:45:483
2649091180,2phc2sys0-21swapper/309:15:573
8712499178,2cyclictest0-21swapper/212:05:492
8712499172,8cyclictest0-21swapper/208:20:002
8712499171,8cyclictest0-21swapper/210:40:002
87124991714,1cyclictest0-21swapper/211:50:002
87124991714,1cyclictest0-21swapper/211:45:002
87124991714,1cyclictest0-21swapper/211:15:552
87124991714,1cyclictest0-21swapper/208:35:592
87124991714,1cyclictest0-21swapper/208:05:012
87123991714,2cyclictest3851875-21systemd-journal09:20:011
87123991714,2cyclictest285855-21apt-key09:40:011
87123991714,2cyclictest1290-21dbus-daemon10:55:001
8712299176,6cyclictest211462-21tr08:45:560
8712299173,6cyclictest0-21swapper/009:05:510
87122991711,2cyclictest103874-21kernelversion07:20:550
87122991710,2cyclictest3851705-21mta-sts-daemon09:29:160
87122991710,2cyclictest3851703-21mta-sts-daemon11:05:120
383433398170,2rtkit-daemon0-21swapper/112:12:471
383433398170,2rtkit-daemon0-21swapper/110:29:201
2649091170,2phc2sys0-21swapper/312:14:583
8712499161,8cyclictest0-21swapper/212:10:482
87124991614,1cyclictest0-21swapper/210:55:022
87124991614,1cyclictest0-21swapper/207:15:032
87124991613,1cyclictest0-21swapper/211:21:552
87124991613,1cyclictest0-21swapper/211:10:022
87124991613,1cyclictest0-21swapper/210:15:592
87124991613,1cyclictest0-21swapper/210:00:572
87124991613,1cyclictest0-21swapper/209:28:242
87124991613,1cyclictest0-21swapper/207:43:482
87124991612,2cyclictest0-21swapper/212:26:012
8712399168,4cyclictest542502-21aten2.4-expect12:30:481
87123991613,2cyclictest55819-21kworker/u16:2-rpciod09:50:021
87123991613,2cyclictest3851703-21mta-sts-daemon08:31:031
87123991613,2cyclictest307455-21users09:51:041
87123991613,2cyclictest215382-21/usr/sbin/munin08:50:001
87123991613,2cyclictest177493-21sendmail08:20:011
87123991613,2cyclictest133823-21latency_hist07:45:011
87123991613,2cyclictest1290-21dbus-daemon12:05:021
87123991613,2cyclictest121053-21systemd-run07:35:011
87123991612,3cyclictest399227-21kworker/u16:0+nfsiod11:27:181
87123991612,3cyclictest399227-21kworker/u16:0+nfsiod11:27:181
87123991612,3cyclictest319744-21kthreadcore10:00:561
2649091160,2phc2sys0-21swapper/310:06:233
2649091160,2phc2sys0-21swapper/310:04:533
8712499156,4cyclictest0-21swapper/207:50:002
8712499153,8cyclictest0-21swapper/211:00:002
8712499151,5cyclictest0-21swapper/211:30:002
8712499151,5cyclictest0-21swapper/211:30:002
87124991512,1cyclictest0-21swapper/212:40:022
87124991512,1cyclictest0-21swapper/212:31:002
87124991512,1cyclictest0-21swapper/211:50:512
87124991512,1cyclictest0-21swapper/211:34:072
87124991512,1cyclictest0-21swapper/210:27:492
87124991511,2cyclictest0-21swapper/210:41:392
87124991511,2cyclictest0-21swapper/209:49:342
87124991510,3cyclictest0-21swapper/210:11:432
8712399159,5cyclictest3834328-21sendmail-mta09:00:381
8712399159,2cyclictest134050irq/121-eno112:05:571
87123991512,2cyclictest55819-21kworker/u16:2-events_unbound08:10:021
87123991512,2cyclictest520643-21gltestperf12:15:531
87123991512,2cyclictest467371-21runrttasks11:40:281
87123991512,2cyclictest443120-21unixbench_singl11:21:031
87123991512,2cyclictest3851702-21mta-sts-daemon10:55:121
87123991512,2cyclictest339988-21cstates10:15:501
87123991512,2cyclictest332121-21aten2.4-expect10:10:491
87123991512,2cyclictest184744-21fschecks_time08:25:531
87123991512,2cyclictest157845-21phc2sys-jitter08:01:001
87123991512,2cyclictest1290-21dbus-daemon08:55:011
87123991511,3cyclictest55819-21kworker/u16:2+nfsiod09:22:411
87123991511,3cyclictest315933-21kworker/u16:1+nfsiod10:30:481
87123991511,3cyclictest238084-21kthreadcore09:05:571
87123991510,2cyclictest3851705-21mta-sts-daemon12:37:521
2649091151,3phc2sys0-21swapper/307:50:493
2649091150,2phc2sys0-21swapper/312:07:563
2649091150,2phc2sys0-21swapper/311:24:023
2649091150,2phc2sys0-21swapper/311:16:053
8712499144,6cyclictest0-21swapper/207:50:492
8712499141,7cyclictest0-21swapper/212:15:492
8712499141,7cyclictest0-21swapper/208:30:002
87124991412,1cyclictest0-21swapper/209:55:012
87124991412,1cyclictest0-21swapper/209:19:372
87124991412,1cyclictest0-21swapper/208:20:552
87124991411,1cyclictest0-21swapper/212:00:532
87124991411,1cyclictest0-21swapper/211:00:582
87124991411,1cyclictest0-21swapper/210:46:032
87124991411,1cyclictest0-21swapper/210:20:502
87124991411,1cyclictest0-21swapper/208:40:532
87124991411,1cyclictest0-21swapper/208:30:522
87124991411,1cyclictest0-21swapper/208:10:532
87124991411,1cyclictest0-21swapper/207:25:002
87124991410,2cyclictest0-21swapper/212:20:322
87124991410,2cyclictest0-21swapper/211:58:202
87124991410,2cyclictest0-21swapper/211:39:182
87124991410,2cyclictest0-21swapper/207:10:572
8712399147,6cyclictest169513-21tr08:10:571
8712399147,2cyclictest4187751-21kworker/1:1+events_freezable07:23:341
8712399147,2cyclictest0-21swapper/109:10:501
87123991411,2cyclictest474962-21/usr/sbin/munin11:45:571
87123991411,2cyclictest433714-21kthreadcore11:15:561
87123991411,2cyclictest228025-21latency_hist09:00:011
87123991411,2cyclictest147187-21fschecks_count07:55:541
87123991411,2cyclictest145776-21unixbench-2d07:51:021
87123991411,2cyclictest109613-21idleruntime07:25:531
87123991411,2cyclictest0-21swapper/111:05:011
87123991410,3cyclictest3851702-21mta-sts-daemon10:38:051
87123991410,3cyclictest348279-21irqrtprio10:20:531
87123991410,3cyclictest138630-21kthreadcore07:45:581
2649091140,2phc2sys0-21swapper/311:07:313
2649091140,2phc2sys0-21swapper/309:57:503
8712499139,2cyclictest0-21swapper/209:20:082
8712499138,3cyclictest0-21swapper/209:06:022
8712499133,4cyclictest0-21swapper/207:30:002
8712499131,5cyclictest0-21swapper/209:00:002
87124991311,1cyclictest0-21swapper/209:00:522
87124991310,2cyclictest0-21swapper/209:30:032
87124991310,1cyclictest0-21swapper/210:31:432
87124991310,1cyclictest0-21swapper/208:50:542
87124991310,1cyclictest0-21swapper/208:05:582
87124991310,1cyclictest0-21swapper/207:55:552
87124991310,1cyclictest0-21swapper/207:30:562
87123991310,2cyclictest417941-21kthreadcore11:05:581
8712299134,4cyclictest87276-21cat07:10:010
2649091133,3phc2sys0-21swapper/311:30:573
2649091131,6phc2sys0-21swapper/312:30:473
2649091131,4phc2sys0-21swapper/311:50:493
2649091130,3phc2sys0-21swapper/307:10:493
2649091130,2phc2sys0-21swapper/311:56:463
2649091130,2phc2sys0-21swapper/310:45:093
2649091130,2phc2sys0-21swapper/310:31:053
2649091130,2phc2sys0-21swapper/310:11:073
2649091130,2phc2sys0-21swapper/309:38:473
2649091130,2phc2sys0-21swapper/309:34:353
2649091130,2phc2sys0-21swapper/309:06:393
8712499127,3cyclictest0-21swapper/208:45:482
8712499121,4cyclictest0-21swapper/207:10:002
87124991210,1cyclictest0-21swapper/211:10:562
8712399129,2cyclictest0-21swapper/107:10:011
2649091129,1phc2sys0-21swapper/309:41:563
2649091123,1phc2sys0-21swapper/310:43:353
2649091121,5phc2sys0-21swapper/307:35:493
2649091121,5phc2sys0-21swapper/307:15:493
2649091120,2phc2sys0-21swapper/312:21:153
2649091120,2phc2sys0-21swapper/312:18:263
2649091120,2phc2sys0-21swapper/310:54:053
2649091120,2phc2sys0-21swapper/308:10:493
2649091120,1phc2sys0-21swapper/307:33:433
2649091120,1phc2sys0-21swapper/307:20:073
2649091112,2phc2sys0-21swapper/309:51:083
2649091111,2phc2sys0-21swapper/310:22:433
2649091110,2phc2sys0-21swapper/310:25:363
2649091110,2phc2sys0-21swapper/308:50:483
2649091110,2phc2sys0-21swapper/308:40:503
2649091110,2phc2sys0-21swapper/308:20:503
2649091110,1phc2sys0-21swapper/308:32:573
2649091110,1phc2sys0-21swapper/307:40:193
2649091102,2phc2sys0-21swapper/310:36:303
2649091102,2phc2sys0-21swapper/308:55:533
2649091101,2phc2sys0-21swapper/312:00:393
2649091101,2phc2sys0-21swapper/309:25:513
2649091101,2phc2sys0-21swapper/308:05:563
2649091101,2phc2sys0-21swapper/307:05:563
2649091100,2phc2sys0-21swapper/312:36:423
2649091100,2phc2sys0-21swapper/312:26:003
2649091100,2phc2sys0-21swapper/311:36:223
2649091100,2phc2sys0-21swapper/310:15:423
2649091100,1phc2sys0-21swapper/308:38:303
264909191,3phc2sys0-21swapper/308:25:503
264909191,2phc2sys0-21swapper/310:55:063
264909191,2phc2sys0-21swapper/309:21:463
264909191,2phc2sys0-21swapper/309:10:473
264909191,2phc2sys0-21swapper/309:00:503
264909191,2phc2sys0-21swapper/308:00:033
264909191,2phc2sys0-21swapper/307:56:063
264909190,2phc2sys0-21swapper/311:25:083
264909190,2phc2sys0-21swapper/311:25:083
264909190,2phc2sys0-21swapper/308:15:493
264909190,2phc2sys0-21swapper/307:45:523
264909190,2phc2sys0-21swapper/307:25:163
264909180,3phc2sys0-21swapper/308:45:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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