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2026-05-27 - 17:38
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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 May 27, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
107978021170,3sleep30-21swapper/309:10:043
92830199330,9cyclictest1185895-21ssh10:24:490
13341782310,2sleep30-21swapper/312:00:033
928301992923,5cyclictest1290-21dbus-daemon12:20:000
928301992814,9cyclictest0-21swapper/011:40:030
928301992718,8cyclictest1208265-21apt-get10:39:480
928302992623,2cyclictest1303669-21/usr/sbin/munin11:40:021
928301992620,5cyclictest1169222-21systemd-run10:10:020
928301992620,5cyclictest1108931-21grep09:30:000
928301992520,4cyclictest1251609-21unixbench-2d11:05:010
928301992519,5cyclictest1288493-21sendmail_mailtr11:30:000
928301992516,7cyclictest3851704-21mta-sts-daemon08:55:020
9833782240,2sleep1983363-21ps07:54:591
928302992416,3cyclictest1291198-21cstates11:34:511
928301992418,5cyclictest3824567-21rs:main0
928301992418,5cyclictest0-21swapper/007:55:020
928301992412,8cyclictest0-21swapper/012:30:010
92830199238,10cyclictest0-21swapper/010:44:490
928301992318,4cyclictest1364007-21sensors_temp12:20:030
928301992317,5cyclictest954713-21grep07:30:010
928301992317,5cyclictest1066307-21apt-config09:00:000
928301992316,5cyclictest0-21swapper/011:00:000
928301992312,5cyclictest0-21swapper/010:55:000
928301992311,8cyclictest0-21swapper/012:09:560
383433398230,3rtkit-daemon3851704-21mta-sts-daemon12:34:241
383433398230,3rtkit-daemon3851703-21mta-sts-daemon09:00:171
928303992214,2cyclictest0-21swapper/207:44:492
928302992219,2cyclictest0-21swapper/108:20:011
928301992216,5cyclictest967023-21cron07:40:000
928301992216,5cyclictest3824567-21rs:main0
928301992216,5cyclictest1341210-21sh12:05:020
928301992216,5cyclictest1116415-21basename09:35:000
928302992118,2cyclictest1326170-21systemd-run11:55:021
928302992118,2cyclictest1146614-21latency_hist09:55:021
928302992118,2cyclictest1109318-21grep09:30:021
928302992115,2cyclictest134050irq/121-eno112:04:561
92830199219,4cyclictest1161334-21kworker/u16:0-events_unbound11:32:100
92830199218,5cyclictest1194688-21kthreadcore10:29:550
92830199218,5cyclictest0-21swapper/011:44:160
92830199218,5cyclictest0-21swapper/009:59:510
92830199217,6cyclictest0-21swapper/010:13:020
928301992115,5cyclictest1390554-21kthreadcore12:39:560
928301992115,5cyclictest1273786-21sendmail_mailtr11:20:010
928301992115,5cyclictest1101620-21phc2sys09:25:010
928301992115,5cyclictest1094192-21grep09:20:000
928301992115,5cyclictest1023213-21cut08:25:020
928301992115,5cyclictest0-21swapper/012:15:010
928301992115,4cyclictest0-21swapper/009:40:000
928301992114,5cyclictest0-21swapper/007:50:010
928303992018,1cyclictest0-21swapper/210:40:022
928303992014,2cyclictest0-21swapper/210:24:492
928302992017,2cyclictest1-21systemd07:40:021
928302992017,2cyclictest1116791-21latency_hist09:35:011
928302992017,2cyclictest1066902-21grep09:00:031
928302992017,2cyclictest0-21swapper/112:00:021
928302992016,3cyclictest948260-21needreboot07:25:011
92830199209,2cyclictest0-21swapper/011:54:550
92830199209,1cyclictest0-21swapper/010:33:090
92830199209,1cyclictest0-21swapper/010:33:080
92830199202,14cyclictest942486-21munin-run07:20:010
92830199201,9cyclictest1-21systemd08:10:010
92830199201,7cyclictest1006224-21uniq08:14:530
928301992015,4cyclictest1053824-21latency_hist08:50:000
928301992014,5cyclictest973230-21systemd07:45:020
928301992014,5cyclictest944154-21gltestperf07:24:550
928301992014,5cyclictest935259-21kthreadcore07:15:020
928301992014,5cyclictest1180141-21kthreadcore10:19:570
928301992014,5cyclictest0-21swapper/009:50:010
92830199201,13cyclictest1086768-21munin-run09:15:010
928301992010,9cyclictest3851702-21mta-sts-daemon11:07:060
92830199200,15cyclictest1029010-21cron08:30:020
928303991916,1cyclictest0-21swapper/208:55:012
928302991916,2cyclictest3827634-1atopacctd11:24:521
928302991916,2cyclictest1288480-21/usr/sbin/munin11:30:001
928302991916,2cyclictest1220951-21gzip10:45:021
928302991916,2cyclictest1183653-21processes10:20:011
928302991916,2cyclictest1054079-21mailstats08:50:011
928301991913,5cyclictest1228566-21latency_hist10:50:000
928301991913,5cyclictest1079303-21ptp4l-jitter09:10:010
928301991912,6cyclictest985794-21head07:55:020
928301991912,6cyclictest985794-21head07:55:020
928301991912,6cyclictest1316040-21kthreadcore11:49:580
928301991912,2cyclictest928300-21cyclictest09:54:540
928301991912,2cyclictest1296-21polkitd07:10:010
928301991911,3cyclictest1131320-21dump-pmu-power09:45:000
928301991911,3cyclictest1045845-21kthreadcore08:44:560
928301991910,4cyclictest0-21swapper/010:05:000
92830199190,9cyclictest1-21systemd08:30:000
2649091190,2phc2sys0-21swapper/310:33:333
2649091190,2phc2sys0-21swapper/310:33:333
928303991815,1cyclictest0-21swapper/210:10:002
928303991815,1cyclictest0-21swapper/207:30:002
92830299188,4cyclictest1165036-21ssh10:09:541
928302991816,1cyclictest0-21swapper/108:00:021
928302991816,1cyclictest0-21swapper/108:00:011
928302991815,2cyclictest934781-21latency07:15:011
928302991815,2cyclictest3827634-1atopacctd09:14:551
928302991815,2cyclictest1393390-21pmu-power12:40:001
928302991815,2cyclictest1374059-21tr12:29:531
928302991815,2cyclictest1101336-21sh09:25:011
928302991815,2cyclictest0-21swapper/107:50:011
928302991814,3cyclictest1058856-21kthreadcore08:54:581
928302991811,3cyclictest1223167-21/usr/sbin/munin10:50:031
92830199185,5cyclictest915779-21kworker/u16:1+events_unbound08:04:510
92830199185,5cyclictest0-21swapper/011:57:080
92830199182,7cyclictest0-21swapper/008:37:100
92830199181,6cyclictest1260919-21apt-get11:14:480
928301991811,6cyclictest1073080-21mailstats09:05:010
928301991811,2cyclictest1296-21polkitd08:20:000
928301991811,2cyclictest1279351-21kthreadcore11:24:590
2649091180,2phc2sys0-21swapper/312:15:323
928303991715,1cyclictest0-21swapper/211:20:012
928303991715,1cyclictest0-21swapper/210:55:012
928303991715,1cyclictest0-21swapper/210:30:012
928303991715,1cyclictest0-21swapper/208:14:532
928303991715,1cyclictest0-21swapper/208:10:012
928303991714,1cyclictest0-21swapper/209:40:002
928303991714,1cyclictest0-21swapper/208:39:192
928303991714,1cyclictest0-21swapper/207:55:012
928303991714,1cyclictest0-21swapper/207:35:012
92830299171,7cyclictest1258889-21ssh11:10:021
928302991714,2cyclictest3851705-21mta-sts-daemon09:47:411
928302991714,2cyclictest3851704-21mta-sts-daemon07:19:491
928302991714,2cyclictest1208541-21tr10:39:501
928302991714,2cyclictest1117116-21grep09:35:031
928302991714,2cyclictest1029059-21idleruntime-cro08:30:001
928302991714,2cyclictest0-21swapper/111:20:011
928302991714,2cyclictest0-21swapper/108:05:001
928302991710,2cyclictest0-21swapper/110:05:011
2649091170,5phc2sys0-21swapper/310:14:153
92830399167,4cyclictest0-21swapper/209:34:482
928303991614,1cyclictest0-21swapper/212:35:012
928303991614,1cyclictest0-21swapper/209:30:012
928303991613,1cyclictest0-21swapper/211:03:052
928303991613,1cyclictest0-21swapper/209:50:002
928303991613,1cyclictest0-21swapper/208:35:002
928302991613,2cyclictest928300-21cyclictest07:29:511
928302991613,2cyclictest3851704-21mta-sts-daemon12:09:171
928302991613,2cyclictest1996-21runrttasks11:42:151
928302991613,2cyclictest1223262-21apt-config10:49:481
928302991613,2cyclictest1-21systemd11:50:021
928302991613,2cyclictest1193549-21ssh10:29:491
928302991613,2cyclictest1169350-21grep10:10:021
928302991613,2cyclictest1079174-21latency_hist09:10:011
928302991613,2cyclictest1010853-21mailstats08:15:011
928302991613,2cyclictest1000009-21fschecks_count08:09:531
928302991613,2cyclictest0-21swapper/107:45:011
928302991612,3cyclictest1127331-21irqrtprio09:44:551
928302991612,3cyclictest1033227-21kthreadcore08:34:581
2649091160,2phc2sys0-21swapper/311:24:023
2649091160,2phc2sys0-21swapper/310:51:253
928303991513,1cyclictest0-21swapper/211:10:022
928303991513,1cyclictest0-21swapper/210:05:022
928303991512,1cyclictest0-21swapper/212:05:002
928303991512,1cyclictest0-21swapper/211:25:022
928303991512,1cyclictest0-21swapper/210:15:012
928303991512,1cyclictest0-21swapper/209:25:002
928303991512,1cyclictest0-21swapper/207:25:012
92830299158,3cyclictest955807-21tail07:34:501
928302991513,1cyclictest1356047-21systemd-run12:15:001
928302991512,2cyclictest1358512-21cpuspeed_turbos12:19:521
928302991512,2cyclictest1242105-21kthreadcore10:59:561
928302991512,2cyclictest1-21systemd10:34:451
928302991512,2cyclictest1-21systemd10:34:451
928302991512,2cyclictest1-21systemd08:40:001
928302991511,3cyclictest783604-21kworker/u16:2+nfsiod09:19:031
928302991511,3cyclictest1245946-21cpuspeed_turbos11:04:491
928302991510,4cyclictest928300-21cyclictest08:40:581
2649091151,1phc2sys0-21swapper/310:20:363
2649091150,3phc2sys0-21swapper/309:29:043
2649091150,2phc2sys0-21swapper/307:41:443
2649091150,1phc2sys0-21swapper/309:24:243
92830399148,3cyclictest0-21swapper/207:59:502
92830399148,3cyclictest0-21swapper/207:59:502
92830399141,4cyclictest0-21swapper/207:10:022
928303991412,1cyclictest0-21swapper/211:45:012
928303991412,1cyclictest0-21swapper/210:57:482
928303991411,1cyclictest0-21swapper/212:27:272
928303991411,1cyclictest0-21swapper/212:20:002
928303991411,1cyclictest0-21swapper/211:34:492
928303991411,1cyclictest0-21swapper/210:34:572
928303991411,1cyclictest0-21swapper/210:34:572
928303991411,1cyclictest0-21swapper/209:54:302
928303991411,1cyclictest0-21swapper/209:04:572
928303991411,1cyclictest0-21swapper/207:39:272
928303991411,1cyclictest0-21swapper/207:14:582
928303991410,2cyclictest0-21swapper/212:11:322
928303991410,2cyclictest0-21swapper/208:05:022
92830299143,5cyclictest0-21swapper/111:14:491
928302991411,2cyclictest3851704-21mta-sts-daemon10:21:471
928302991411,2cyclictest1996-21runrttasks09:56:331
928302991411,2cyclictest1366949-21irqcore12:24:551
2649091140,3phc2sys0-21swapper/310:57:223
2649091140,3phc2sys0-21swapper/309:44:493
2649091140,2phc2sys0-21swapper/312:09:033
2649091140,2phc2sys0-21swapper/308:34:593
2649091140,1phc2sys0-21swapper/310:45:403
2649091140,1phc2sys0-21swapper/308:27:173
92830399139,2cyclictest0-21swapper/208:25:112
92830399139,2cyclictest0-21swapper/208:21:082
928303991311,1cyclictest0-21swapper/212:06:032
928303991311,1cyclictest0-21swapper/210:45:212
928303991310,2cyclictest0-21swapper/211:15:022
928303991310,1cyclictest0-21swapper/212:37:242
928303991310,1cyclictest0-21swapper/211:54:572
928303991310,1cyclictest0-21swapper/210:40:112
928303991310,1cyclictest0-21swapper/210:20:022
928303991310,1cyclictest0-21swapper/209:19:522
928303991310,1cyclictest0-21swapper/209:10:062
92830399130,6cyclictest0-21swapper/209:45:022
928302991310,2cyclictest1019516-21kthreadcore08:24:571
928302991310,2cyclictest0-21swapper/107:10:011
2649091131,3phc2sys0-21swapper/312:14:483
2649091130,2phc2sys0-21swapper/312:35:043
2649091130,2phc2sys0-21swapper/311:46:543
2649091130,2phc2sys0-21swapper/310:43:163
2649091130,1phc2sys0-21swapper/311:53:153
92830399129,2cyclictest0-21swapper/211:37:232
92830399129,2cyclictest0-21swapper/211:25:052
92830399129,1cyclictest0-21swapper/208:56:072
92830399129,1cyclictest0-21swapper/208:45:532
92830399129,1cyclictest0-21swapper/207:48:322
92830399128,2cyclictest0-21swapper/209:09:522
92830399128,2cyclictest0-21swapper/208:41:482
928303991210,1cyclictest0-21swapper/211:49:542
928303991210,1cyclictest0-21swapper/208:15:302
92830399120,7cyclictest0-21swapper/207:20:012
2649091121,2phc2sys0-21swapper/310:39:483
2649091121,2phc2sys0-21swapper/308:24:563
2649091121,2phc2sys0-21swapper/307:19:493
2649091121,1phc2sys0-21swapper/308:52:063
2649091120,3phc2sys0-21swapper/310:07:303
2649091120,2phc2sys0-21swapper/309:48:253
2649091120,2phc2sys0-21swapper/309:36:593
2649091120,2phc2sys0-21swapper/307:37:463
2649091120,2phc2sys0-21swapper/307:21:003
2649091120,1phc2sys0-21swapper/308:57:513
92830399119,1cyclictest0-21swapper/212:20:312
92830399119,1cyclictest0-21swapper/209:56:042
92830399118,1cyclictest0-21swapper/211:56:202
2649091112,2phc2sys0-21swapper/312:29:593
2649091112,2phc2sys0-21swapper/311:31:553
2649091110,3phc2sys0-21swapper/310:04:523
2649091110,2phc2sys0-21swapper/311:40:493
2649091110,2phc2sys0-21swapper/307:50:333
2649091110,2phc2sys0-21swapper/307:26:253
2649091110,1phc2sys0-21swapper/309:53:383
2649091110,1phc2sys0-21swapper/308:48:013
11106402110,3sleep30-21swapper/309:32:543
2649091102,2phc2sys0-21swapper/312:24:143
2649091101,2phc2sys0-21swapper/312:05:023
2649091101,2phc2sys0-21swapper/311:09:583
2649091101,2phc2sys0-21swapper/311:00:363
2649091101,2phc2sys0-21swapper/310:29:553
2649091101,2phc2sys0-21swapper/308:39:533
2649091101,2phc2sys0-21swapper/307:49:503
2649091101,2phc2sys0-21swapper/307:09:543
2649091100,3phc2sys0-21swapper/311:19:563
2649091100,2phc2sys0-21swapper/312:30:193
2649091100,2phc2sys0-21swapper/311:29:113
2649091100,2phc2sys0-21swapper/311:12:383
2649091100,2phc2sys0-21swapper/310:19:523
2649091100,2phc2sys0-21swapper/309:56:233
2649091100,2phc2sys0-21swapper/309:19:563
2649091100,2phc2sys0-21swapper/309:10:023
2649091100,2phc2sys0-21swapper/309:04:493
2649091100,2phc2sys0-21swapper/308:43:493
2649091100,2phc2sys0-21swapper/307:58:433
2649091100,2phc2sys0-21swapper/307:58:433
2649091100,1phc2sys0-21swapper/307:12:073
264909191,3phc2sys0-21swapper/308:09:483
264909190,2phc2sys0-21swapper/311:35:043
264909190,2phc2sys0-21swapper/308:15:023
264909190,2phc2sys0-21swapper/308:14:553
264909190,2phc2sys0-21swapper/307:30:023
264909190,1phc2sys0-21swapper/308:02:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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