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2026-04-18 - 08:04
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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 376 highest latencies:
System rackeslot2.osadl.org (updated Sat Apr 18, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8998742910,1sleep10-21swapper/121:45:531
6928892820,2sleep1692893-21grep19:10:511
9948272680,1sleep1994826-21ssh22:49:541
7154832670,1sleep00-21swapper/019:25:530
9816412540,1sleep00-21swapper/022:40:510
10863202500,2sleep30-21swapper/323:50:493
9409272420,1sleep10-21swapper/122:12:061
691654992422,1cyclictest0-21swapper/019:50:000
691654992219,2cyclictest979772-21idleruntime-cro22:40:000
691654992212,6cyclictest0-21swapper/000:38:450
9421192210,2sleep30-21swapper/322:15:013
691656992119,1cyclictest0-21swapper/221:30:012
691656992118,1cyclictest0-21swapper/219:40:002
691655992117,2cyclictest134050irq/121-eno100:00:011
691654992118,2cyclictest1122917-21cron00:15:000
691656992018,1cyclictest0-21swapper/221:50:012
691656992014,1cyclictest0-21swapper/220:49:592
691655992016,3cyclictest1-21systemd22:40:011
691655992016,2cyclictest383433398rtkit-daemon22:25:461
69165499204,3cyclictest0-21swapper/022:25:530
691654992014,4cyclictest1-21systemd20:40:020
691654992011,5cyclictest1003736-21idleruntime22:55:510
691654992010,5cyclictest0-21swapper/023:25:020
691654992010,5cyclictest0-21swapper/000:34:460
691656991917,1cyclictest0-21swapper/200:15:012
691656991916,1cyclictest0-21swapper/220:20:002
691656991915,2cyclictest0-21swapper/222:30:012
691655991916,2cyclictest0-21swapper/119:50:001
691655991915,3cyclictest917472-21head21:55:551
691655991914,4cyclictest3824565-21in:imuxsock20:00:011
691655991913,4cyclictest1-21systemd20:50:001
691655991911,3cyclictest1996-21runrttasks22:04:561
69165499199,5cyclictest0-21swapper/021:41:360
691654991916,2cyclictest1130465-21munin-run00:20:000
691654991911,4cyclictest813440-21tail20:45:460
691654991910,5cyclictest0-21swapper/023:43:550
2649091190,3phc2sys0-21swapper/323:10:453
691656991816,1cyclictest0-21swapper/223:05:012
691656991815,1cyclictest0-21swapper/223:05:502
691655991815,2cyclictest932819-21timerandwakeup22:05:591
691655991815,1cyclictest134050irq/121-eno123:10:521
691655991814,3cyclictest720611-21kthreadcore19:30:521
691655991810,2cyclictest0-21swapper/122:15:451
69165499189,5cyclictest0-21swapper/022:00:020
69165499183,3cyclictest3851703-21mta-sts-daemon19:57:390
691654991815,2cyclictest940175-21mailstats22:10:570
691654991815,2cyclictest825694-21latency_hist20:55:010
691654991815,2cyclictest706693-21systemd-run19:20:010
691654991815,2cyclictest706693-21systemd-run19:20:010
691654991815,2cyclictest691766-21systemd-run19:10:010
691654991811,2cyclictest0-21swapper/023:35:010
691656991715,1cyclictest0-21swapper/221:10:002
691656991715,1cyclictest0-21swapper/219:25:012
691656991715,1cyclictest0-21swapper/200:40:022
691656991714,1cyclictest0-21swapper/223:40:012
691656991714,1cyclictest0-21swapper/223:15:462
691656991714,1cyclictest0-21swapper/222:50:592
691656991714,1cyclictest0-21swapper/221:55:022
691656991714,1cyclictest0-21swapper/221:25:022
691656991714,1cyclictest0-21swapper/219:15:012
691656991714,1cyclictest0-21swapper/200:30:502
691655991714,2cyclictest996748-21kernelversion22:50:521
691655991714,2cyclictest911986-21gdbus21:55:011
691655991714,2cyclictest1145502-21cut00:30:011
691655991714,2cyclictest1079605-21kthreadcore23:45:521
691655991714,2cyclictest1040543-21apt-get23:20:441
691655991714,2cyclictest1017729-21grep23:05:021
691655991713,3cyclictest1138129-21/usr/sbin/munin00:25:011
691655991713,2cyclictest0-21swapper/121:10:011
691655991711,4cyclictest0-21swapper/100:15:541
691655991711,2cyclictest134050irq/121-eno100:30:591
69165599170,1cyclictest0-21swapper/120:23:411
69165499178,5cyclictest0-21swapper/023:36:230
69165499178,5cyclictest0-21swapper/000:05:460
69165499177,6cyclictest0-21swapper/020:30:550
69165499176,6cyclictest0-21swapper/021:35:010
691654991715,1cyclictest859161-21latency_hist21:20:000
691654991714,2cyclictest1296-21polkitd23:05:010
691654991714,2cyclictest0-21swapper/019:15:010
691654991713,1cyclictest0-21swapper/020:55:550
2649091171,4phc2sys0-21swapper/323:25:453
2649091170,2phc2sys0-21swapper/322:54:183
691656991614,1cyclictest0-21swapper/223:30:472
691656991614,1cyclictest0-21swapper/222:00:012
691656991614,1cyclictest0-21swapper/220:25:022
691656991614,1cyclictest0-21swapper/200:01:452
691656991613,1cyclictest0-21swapper/223:55:542
691656991613,1cyclictest0-21swapper/222:56:002
691656991613,1cyclictest0-21swapper/221:10:592
691656991613,1cyclictest0-21swapper/220:50:572
691656991612,2cyclictest0-21swapper/223:25:472
691656991612,2cyclictest0-21swapper/221:41:262
69165599168,4cyclictest1023321-21ssh23:05:591
691655991614,1cyclictest0-21swapper/100:05:021
691655991613,2cyclictest981508-21cut22:40:511
691655991613,2cyclictest881627-21cron21:35:001
691655991613,2cyclictest703420-21kthreadcore19:15:541
691655991613,2cyclictest703420-21kthreadcore19:15:541
691655991613,2cyclictest697955-21munin-node21:26:561
691655991613,2cyclictest1063320-21tr23:35:471
691655991613,2cyclictest1048589-21fschecks_count23:25:481
691655991613,2cyclictest0-21swapper/121:20:001
691655991612,3cyclictest1088431-21kthreadcore23:50:521
691655991612,3cyclictest1038080-21pmu-power23:15:551
691655991610,4cyclictest1-21systemd19:25:011
69165499169,2cyclictest0-21swapper/000:02:360
69165499167,5cyclictest0-21swapper/023:17:550
69165499167,5cyclictest0-21swapper/022:05:580
69165499165,6cyclictest0-21swapper/021:25:460
69165499163,8cyclictest904633-21cat21:50:450
69165499162,13cyclictest1092985-21/usr/sbin/munin23:55:560
691654991614,2cyclictest171ktimers/019:50:580
691654991613,2cyclictest3851703-21mta-sts-daemon22:15:480
691654991613,2cyclictest1296-21polkitd23:10:010
691654991613,2cyclictest0-21swapper/021:40:020
691654991612,3cyclictest942365-21kworker/u16:0+nfsiod23:10:230
691654991612,2cyclictest0-21swapper/000:25:000
691654991610,5cyclictest794292-21systemd-run20:30:010
691654991610,5cyclictest0-21swapper/000:25:550
383433398160,4rtkit-daemon3851702-21mta-sts-daemon23:27:590
2649091161,2phc2sys0-21swapper/321:40:473
2649091160,2phc2sys0-21swapper/323:05:253
691656991513,1cyclictest0-21swapper/222:30:382
691656991513,1cyclictest0-21swapper/222:25:012
691656991513,1cyclictest0-21swapper/222:05:022
691656991513,1cyclictest0-21swapper/221:35:532
691656991513,1cyclictest0-21swapper/221:30:452
691656991512,1cyclictest0-21swapper/223:50:502
691656991512,1cyclictest0-21swapper/223:44:052
691656991512,1cyclictest0-21swapper/223:10:592
691656991512,1cyclictest0-21swapper/222:45:452
691656991512,1cyclictest0-21swapper/222:35:532
691656991512,1cyclictest0-21swapper/222:13:422
691656991512,1cyclictest0-21swapper/221:17:472
691656991512,1cyclictest0-21swapper/220:58:552
691656991512,1cyclictest0-21swapper/219:50:002
691656991512,1cyclictest0-21swapper/200:25:572
691656991512,1cyclictest0-21swapper/200:20:022
691656991512,1cyclictest0-21swapper/200:05:532
69165599159,5cyclictest1104191-21kthreadcore00:00:541
69165599155,5cyclictest0-21swapper/121:40:531
69165599153,4cyclictest3834332-21rtkit-daemon19:44:061
691655991512,2cyclictest845616-21if_enp1s0.821:10:501
691655991512,2cyclictest822114-21kthreadcore20:50:501
691655991512,2cyclictest780693-21needreboot20:15:541
691655991512,2cyclictest718956-21latency_hist19:30:001
691655991512,2cyclictest1075572-21phc2sys-jitter23:40:571
691655991512,2cyclictest0-21swapper/120:30:021
691655991511,3cyclictest942365-21kworker/u16:0+nfsiod22:20:101
691655991511,3cyclictest886771-21kthreadcore21:35:551
691655991511,3cyclictest764607-21kthreadcore20:05:521
691655991511,3cyclictest744558-21/usr/sbin/munin19:50:531
691655991511,3cyclictest1010075-21latency_hist23:00:011
691655991510,2cyclictest3851705-21mta-sts-daemon00:11:141
69165499159,5cyclictest3834332-21rtkit-daemon22:30:390
69165499156,4cyclictest0-21swapper/021:45:470
691654991512,2cyclictest763443-21aten_repower_vo20:05:460
691654991512,2cyclictest691652-21cyclictest21:05:530
691654991512,2cyclictest1078643-21cut23:45:490
691654991512,2cyclictest0-21swapper/019:45:000
691654991511,3cyclictest942365-21kworker/u16:0+nfsiod22:46:000
691654991511,3cyclictest813135-21kworker/u16:1+nfsiod23:54:080
69165499151,12cyclictest769536-21/usr/sbin/munin20:10:590
2649091157,2phc2sys0-21swapper/322:48:343
2649091150,6phc2sys0-21swapper/322:24:553
2649091150,2phc2sys0-21swapper/321:16:463
2649091150,2phc2sys0-21swapper/300:21:453
69165699141,3cyclictest8070452sleep220:40:462
691656991412,1cyclictest0-21swapper/223:48:502
691656991412,1cyclictest0-21swapper/220:40:022
691656991412,1cyclictest0-21swapper/220:35:022
691656991412,1cyclictest0-21swapper/220:05:532
691656991412,1cyclictest0-21swapper/219:55:002
691656991412,1cyclictest0-21swapper/219:15:572
691656991412,1cyclictest0-21swapper/219:15:572
691656991412,1cyclictest0-21swapper/200:20:562
691656991411,1cyclictest0-21swapper/220:10:512
691656991411,1cyclictest0-21swapper/220:00:012
691656991410,2cyclictest0-21swapper/223:20:462
691656991410,2cyclictest0-21swapper/222:15:512
691656991410,2cyclictest0-21swapper/219:30:512
691656991410,1cyclictest0-21swapper/222:40:452
691655991412,1cyclictest1058027-21kthreadcore23:30:531
691655991411,2cyclictest965945-21fschecks_time22:30:491
691655991411,2cyclictest833611-21kthreadcore21:00:521
691655991411,2cyclictest1290-21dbus-daemon20:40:011
691655991411,2cyclictest0-21swapper/121:20:021
691655991410,3cyclictest809357-21kthreadcore20:40:531
691655991410,3cyclictest759817-21kthreadcore20:00:531
691655991410,3cyclictest691491-21latency_hist19:10:001
691655991410,3cyclictest1326-21systemd-logind00:40:011
69165599140,3cyclictest0-21swapper/120:11:181
69165499149,4cyclictest0-21swapper/022:25:000
69165499149,1cyclictest0-21swapper/019:36:000
69165499147,6cyclictest999365-21kthreadcore22:50:530
691654991412,1cyclictest1996-21runrttasks22:01:460
691654991411,2cyclictest760784-21kthreadcore20:00:530
691654991411,2cyclictest722184-21kthreadcore19:30:530
691654991411,2cyclictest3834789-21rpcbind19:22:220
691654991411,2cyclictest171ktimers/021:13:150
2649091141,2phc2sys0-21swapper/322:00:433
2649091140,5phc2sys0-21swapper/322:19:333
2649091140,5phc2sys0-21swapper/319:30:453
2649091140,4phc2sys0-21swapper/322:28:033
2649091140,2phc2sys0-21swapper/323:55:273
2649091140,2phc2sys0-21swapper/323:49:553
2649091140,2phc2sys0-21swapper/323:22:393
2649091140,2phc2sys0-21swapper/321:35:503
2649091140,2phc2sys0-21swapper/320:30:543
2649091140,2phc2sys0-21swapper/300:33:583
691656991311,1cyclictest0-21swapper/222:05:312
691656991310,2cyclictest0-21swapper/219:40:522
691656991310,2cyclictest0-21swapper/219:25:522
691656991310,1cyclictest0-21swapper/221:00:112
691656991310,1cyclictest0-21swapper/220:00:522
691655991310,2cyclictest826896-21irqcore20:55:501
691655991310,2cyclictest794683-21aten_repower_po20:30:471
691655991310,2cyclictest730458-21head19:35:551
69165499138,4cyclictest3851705-21mta-sts-daemon21:00:390
691654991310,2cyclictest862921-21kthreadcore21:20:530
691654991310,2cyclictest777424-21kthreadcore20:15:510
691654991310,2cyclictest3851702-21mta-sts-daemon20:40:520
691654991310,2cyclictest0-21swapper/020:20:520
2649091136,2phc2sys0-21swapper/320:50:493
2649091131,2phc2sys0-21swapper/321:46:403
2649091130,4phc2sys0-21swapper/300:00:543
2649091130,3phc2sys0-21swapper/321:30:453
2649091130,2phc2sys0-21swapper/323:39:483
2649091130,2phc2sys0-21swapper/323:16:043
2649091130,2phc2sys0-21swapper/322:43:333
2649091130,2phc2sys0-21swapper/319:20:443
2649091130,2phc2sys0-21swapper/300:25:463
2649091130,1phc2sys0-21swapper/320:11:183
691656991210,1cyclictest0-21swapper/220:25:482
691656991210,1cyclictest0-21swapper/219:10:012
2649091121,4phc2sys0-21swapper/321:00:473
2649091121,2phc2sys0-21swapper/320:49:443
2649091120,2phc2sys0-21swapper/322:10:013
2649091120,2phc2sys0-21swapper/319:19:233
2649091120,2phc2sys0-21swapper/319:19:233
2649091114,2phc2sys0-21swapper/320:40:593
2649091111,4phc2sys0-21swapper/319:50:463
2649091111,4phc2sys0-21swapper/300:15:473
2649091111,3phc2sys0-21swapper/320:55:453
2649091111,2phc2sys0-21swapper/321:26:003
2649091110,3phc2sys0-21swapper/320:40:003
2649091110,2phc2sys0-21swapper/323:40:493
2649091110,2phc2sys0-21swapper/323:03:133
2649091110,2phc2sys0-21swapper/300:07:423
2649091101,2phc2sys0-21swapper/322:36:523
2649091100,3phc2sys0-21swapper/321:07:413
2649091100,2phc2sys0-21swapper/323:30:553
2649091100,2phc2sys0-21swapper/322:55:473
2649091100,2phc2sys0-21swapper/322:30:493
2649091100,2phc2sys0-21swapper/321:22:123
2649091100,2phc2sys0-21swapper/321:10:453
2649091100,2phc2sys0-21swapper/320:30:023
264909191,4phc2sys0-21swapper/319:35:453
264909191,3phc2sys0-21swapper/319:10:453
264909191,2phc2sys0-21swapper/319:55:443
264909191,2phc2sys0-21swapper/319:42:413
264909191,2phc2sys0-21swapper/300:10:313
264909191,1phc2sys0-21swapper/300:35:363
264909190,2phc2sys0-21swapper/321:55:503
264909190,2phc2sys0-21swapper/321:50:253
264909190,2phc2sys0-21swapper/320:20:523
264909190,2phc2sys0-21swapper/320:15:473
264909190,2phc2sys0-21swapper/320:05:413
264909190,2phc2sys0-21swapper/320:05:013
264909190,2phc2sys0-21swapper/319:45:463
264909190,2phc2sys0-21swapper/319:26:013
264909180,2phc2sys0-21swapper/319:05:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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