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2026-09-20 - 06:40
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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 Sun Sep 20, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
395021021070,1sleep00-21swapper/021:50:030
37452942370,2sleep03745300-21kthreadcore19:34:230
3711384993014,12cyclictest55045-21kthreadcore00:39:240
37761012260,2sleep30-21swapper/319:55:023
371138499252,16cyclictest0-21swapper/021:19:020
371138499245,12cyclictest0-21swapper/023:28:430
371138499245,11cyclictest0-21swapper/022:50:170
371138499242,14cyclictest0-21swapper/023:25:020
3711384992415,8cyclictest4091116-21latency_hist23:10:010
371138499241,16cyclictest3831729-21/usr/sbin/munin20:39:280
371138499235,9cyclictest0-21swapper/022:15:030
371138499234,12cyclictest0-21swapper/023:50:520
371138499234,12cyclictest0-21swapper/022:12:080
371138499232,16cyclictest0-21swapper/000:18:580
371138499231,4cyclictest3728090-21runrttasks19:22:490
371138499231,3cyclictest3907944-21taskset21:28:390
371138499231,3cyclictest3797117-21taskset20:11:510
371138499231,14cyclictest4175784-21kthreadcore23:59:240
371138499231,14cyclictest4175784-21kthreadcore23:59:240
371138499231,13cyclictest0-21swapper/023:35:570
371138499231,13cyclictest0-21swapper/000:31:000
371138499231,12cyclictest0-21swapper/000:23:020
371138499231,12cyclictest0-21swapper/000:23:020
3711384992311,10cyclictest3713035-21irqcore19:14:270
371138499230,6cyclictest1188-21runrttasks20:34:010
371138499230,4cyclictest4191185-21/usr/sbin/munin00:09:210
371138499230,4cyclictest3859191-21taskset20:56:240
371138499230,4cyclictest1188-21runrttasks22:20:110
39326802220,1sleep00-21swapper/021:40:040
39326802220,1sleep00-21swapper/021:40:040
3711385992219,2cyclictest1188-21runrttasks23:38:591
3711385992212,6cyclictest677780-21systemd-journal00:40:011
371138499227,8cyclictest3790360-21/usr/sbin/munin20:09:250
371138499227,10cyclictest0-21swapper/023:04:180
371138499225,12cyclictest0-21swapper/022:46:370
371138499225,12cyclictest0-21swapper/000:29:170
371138499223,14cyclictest0-21swapper/023:14:420
371138499222,12cyclictest0-21swapper/023:42:460
371138499221,3cyclictest3721191-21taskset19:17:520
3711384992211,9cyclictest1-21systemd21:40:020
371138499221,16cyclictest0-21swapper/022:40:380
371138499221,16cyclictest0-21swapper/022:01:540
371138499221,15cyclictest0-21swapper/021:50:550
371138499221,13cyclictest4181282-21ssh00:03:590
371138499221,13cyclictest4013898-21/usr/sbin/munin22:29:150
371138499221,13cyclictest0-21swapper/023:45:520
371138499221,12cyclictest0-21swapper/021:11:550
371138499220,5cyclictest4128144-21taskset23:33:070
371138499220,5cyclictest3977428-21runrttasks22:06:240
371138499220,5cyclictest3734957-21taskset19:26:500
371138499220,5cyclictest1188-21runrttasks23:18:120
371138499220,5cyclictest1188-21runrttasks20:15:570
371138499220,5cyclictest1188-21runrttasks19:52:280
371138699211,7cyclictest0-21swapper/223:54:002
3711385992114,6cyclictest24614-21JS14:54:061
371138499211,5cyclictest3776301-21taskset19:55:540
371138499211,5cyclictest1188-21runrttasks21:01:060
371138499211,5cyclictest1188-21runrttasks19:40:540
371138499211,3cyclictest3962365-21/usr/sbin/munin21:59:190
371138499211,2cyclictest3748856-21taskset19:38:170
371138499211,11cyclictest0-21swapper/000:11:260
371138499210,5cyclictest3900075-21ssh21:24:190
371138499210,5cyclictest3817773-21taskset20:26:340
371138499210,5cyclictest3783237-21taskset20:01:370
371138499210,4cyclictest4030493-21taskset22:36:420
371138499210,3cyclictest3915350-21taskset21:30:330
371138499210,3cyclictest3810781-21taskset20:20:130
3711385992015,4cyclictest24616-21JS14:54:061
371138499201,4cyclictest3852198-21taskset20:50:150
371138499200,5cyclictest3838405-21taskset20:40:210
371138499200,5cyclictest3762522-21taskset19:46:260
371138499200,4cyclictest4066425-21sh22:58:250
371138499200,4cyclictest4021709-21taskset22:31:470
371138499200,4cyclictest3845539-21runrttasks20:48:510
3711385991916,2cyclictest24813-21gsd-housekeepin23:25:401
3711385991913,2cyclictest82050irq/121-eno100:19:231
371138499190,4cyclictest3873190-21taskset21:08:310
2447398190,4rtkit-daemon1415-21ntpd19:17:251
2213291191,3phc2sys0-21swapper/321:34:433
371138699188,2cyclictest0-21swapper/221:19:022
3711386991815,1cyclictest0-21swapper/219:25:012
3711385991815,2cyclictest778-21dbus-daemon21:00:011
3711385991815,2cyclictest24472-21rtkit-daemon23:19:491
3711385991814,3cyclictest24617-21JS14:54:061
3711385991811,3cyclictest4112952-21kthreadcore23:24:211
371138599181,11cyclictest3914972-21munin-run21:30:021
2213291180,2phc2sys0-21swapper/322:31:513
371138699171,7cyclictest0-21swapper/223:59:002
371138699171,7cyclictest0-21swapper/223:59:002
371138699171,7cyclictest0-21swapper/220:59:012
3711386991714,1cyclictest0-21swapper/223:05:012
3711386991714,1cyclictest0-21swapper/220:24:092
3711385991714,2cyclictest24616-21JS14:54:061
3711385991714,2cyclictest0-21swapper/122:09:341
3711385991713,3cyclictest3941461-21latency_hist21:45:031
3711385991713,3cyclictest3941461-21latency_hist21:45:031
3711385991710,3cyclictest4023026-21aten_repower_vo22:34:131
2213291171,7phc2sys0-21swapper/322:19:003
2213291170,2phc2sys0-21swapper/323:13:203
2213291170,2phc2sys0-21swapper/300:10:303
371138699161,7cyclictest0-21swapper/200:09:002
3711386991614,1cyclictest0-21swapper/223:44:002
3711386991613,1cyclictest0-21swapper/222:07:252
3711386991613,1cyclictest0-21swapper/221:42:032
3711386991613,1cyclictest0-21swapper/221:42:032
3711386991613,1cyclictest0-21swapper/220:01:092
3711386991612,2cyclictest0-21swapper/223:46:592
3711386991612,2cyclictest0-21swapper/200:33:252
3711386991612,1cyclictest0-21swapper/219:13:092
371138599168,4cyclictest4149347-21kthreadcore23:44:231
371138599163,2cyclictest0-21swapper/121:34:001
3711385991613,2cyclictest672436-21rs:main1
3711385991613,2cyclictest1188-21runrttasks22:28:581
3711385991610,4cyclictest4167495-21tr23:54:231
2213291161,2phc2sys0-21swapper/322:55:013
2213291160,2phc2sys0-21swapper/323:59:353
2213291160,2phc2sys0-21swapper/323:59:353
2213291160,2phc2sys0-21swapper/321:18:413
2213291160,2phc2sys0-21swapper/319:29:173
2213291160,2phc2sys0-21swapper/300:28:413
2213291160,2phc2sys0-21swapper/300:22:253
2213291160,2phc2sys0-21swapper/300:22:253
371138699151,8cyclictest0-21swapper/223:19:002
371138699151,7cyclictest0-21swapper/219:34:002
3711386991513,1cyclictest0-21swapper/221:25:022
3711386991513,1cyclictest0-21swapper/200:35:452
3711386991512,1cyclictest0-21swapper/223:22:452
3711386991512,1cyclictest0-21swapper/222:35:312
3711386991512,1cyclictest0-21swapper/222:14:232
3711386991512,1cyclictest0-21swapper/222:04:192
3711386991512,1cyclictest0-21swapper/221:33:012
3711386991512,1cyclictest0-21swapper/221:10:002
3711386991512,1cyclictest0-21swapper/220:34:222
371138599157,3cyclictest0-21swapper/121:49:251
371138599156,8cyclictest351ktimers/100:03:591
371138599151,9cyclictest4047094-21cron22:45:011
3711385991512,2cyclictest4173399-21cut23:59:191
3711385991512,2cyclictest4173399-21cut23:59:191
3711385991512,2cyclictest3894278-21kthreadcore21:19:251
3711385991511,3cyclictest4133406-21kthreadcore23:34:221
3711385991511,3cyclictest4099529-21unixbench-2d23:14:281
3711385991511,3cyclictest4090209-21pmu-power23:09:261
3711385991511,3cyclictest4061641-21kthreadcore22:54:231
3711385991511,3cyclictest3853131-21fschecks_count20:54:191
3711385991511,3cyclictest3832452-21gltestperf20:39:181
3711385991511,3cyclictest351ktimers/100:28:201
371138599151,12cyclictest3776570-21apt-get19:59:001
3711385991510,4cyclictest672436-21rs:main1
371138599150,10cyclictest778-21dbus-daemon21:05:021
371138499150,6cyclictest677780-21systemd-journal19:10:020
2213291151,2phc2sys0-21swapper/322:49:243
2213291150,3phc2sys0-21swapper/323:30:263
2213291150,3phc2sys0-21swapper/323:29:003
2213291150,1phc2sys0-21swapper/321:11:503
3711386991412,1cyclictest0-21swapper/221:30:022
3711386991412,1cyclictest0-21swapper/220:44:232
3711386991412,1cyclictest0-21swapper/220:13:592
3711386991412,1cyclictest0-21swapper/219:19:032
3711386991411,1cyclictest0-21swapper/223:39:212
3711386991411,1cyclictest0-21swapper/223:34:212
3711386991411,1cyclictest0-21swapper/223:28:292
3711386991411,1cyclictest0-21swapper/222:59:212
3711386991411,1cyclictest0-21swapper/222:49:222
3711386991411,1cyclictest0-21swapper/222:40:592
3711386991411,1cyclictest0-21swapper/221:57:402
3711386991411,1cyclictest0-21swapper/221:02:592
3711386991411,1cyclictest0-21swapper/220:39:252
3711386991411,1cyclictest0-21swapper/219:54:222
3711386991411,1cyclictest0-21swapper/219:47:592
3711386991411,1cyclictest0-21swapper/219:41:592
3711386991411,1cyclictest0-21swapper/200:14:272
3711386991410,2cyclictest0-21swapper/222:24:202
371138599149,4cyclictest4071911-21ssh22:59:241
3711385991411,2cyclictest797-21polkitd21:15:011
3711385991411,2cyclictest778-21dbus-daemon20:45:011
3711385991411,2cyclictest4075581-21aten_repower_cu23:04:011
3711385991411,2cyclictest3821008-21kthreadcore20:29:241
3711385991411,2cyclictest3783636-21cpu20:04:181
3711385991411,2cyclictest3711467-21latency_hist19:10:031
3711385991410,3cyclictest4020744-21kworker/u16:0+nfsiod22:38:061
3711385991410,3cyclictest3988947-21kthreadcore22:14:211
3711385991410,3cyclictest3831260-21kworker/u16:3+nfsiod22:01:221
3711385991410,3cyclictest3812083-21irqcore20:24:181
3711385991410,3cyclictest3766284-21kthreadcore19:49:221
3711385991410,3cyclictest3752688-21kthreadcore19:39:241
3711385991410,3cyclictest3742180-21aten_repower_po19:34:101
3711385991410,3cyclictest28716-21processes00:24:271
3711385991410,3cyclictest28716-21processes00:24:271
371138599140,13cyclictest3873258-21apt-get21:08:591
2447398140,5rtkit-daemon798-21mta-sts-daemon00:31:241
2213291141,6phc2sys0-21swapper/320:29:003
2213291141,4phc2sys0-21swapper/322:43:593
2213291141,2phc2sys0-21swapper/321:09:233
2213291140,3phc2sys0-21swapper/323:49:103
2213291140,3phc2sys0-21swapper/322:23:593
2213291140,2phc2sys0-21swapper/323:35:353
2213291140,1phc2sys0-21swapper/323:00:233
40301762131,4sleep30-21swapper/322:35:573
371138699139,2cyclictest0-21swapper/223:09:092
371138699139,2cyclictest0-21swapper/220:49:172
371138699137,3cyclictest0-21swapper/221:48:592
3711386991311,1cyclictest0-21swapper/222:54:002
3711386991311,1cyclictest0-21swapper/222:29:202
3711386991311,1cyclictest0-21swapper/200:03:312
3711386991310,1cyclictest0-21swapper/222:16:132
3711386991310,1cyclictest0-21swapper/221:39:222
3711386991310,1cyclictest0-21swapper/219:37:592
3711386991310,1cyclictest0-21swapper/219:29:192
3711386991310,1cyclictest0-21swapper/200:29:222
371138699130,10cyclictest0-21swapper/220:19:022
371138599139,3cyclictest4006230-21irqcore22:24:201
371138599139,3cyclictest24616-21JS14:54:061
371138599138,4cyclictest1-21systemd20:35:021
371138599137,5cyclictest3734879-21sshd-session19:25:511
3711385991311,1cyclictest4126547-21kworker/1:0+events_freezable23:48:521
3711385991310,2cyclictest778-21dbus-daemon21:40:011
3711385991310,2cyclictest3952789-21sh21:54:171
3711385991310,2cyclictest3791626-21irqrtprio20:09:201
3711385991310,2cyclictest3761155-21kthreadcore19:44:261
3711385991310,2cyclictest3711382-21cyclictest19:14:281
2213291130,3phc2sys0-21swapper/319:24:013
2213291130,3phc2sys0-21swapper/319:19:003
2213291130,2phc2sys0-21swapper/319:42:123
2213291130,1phc2sys0-21swapper/322:08:353
371138699129,1cyclictest0-21swapper/222:31:512
371138699129,1cyclictest0-21swapper/220:53:332
371138699129,1cyclictest0-21swapper/220:06:022
371138699129,1cyclictest0-21swapper/200:22:042
371138699129,1cyclictest0-21swapper/200:22:042
371138699121,6cyclictest0-21swapper/220:29:002
371138699121,5cyclictest0-21swapper/200:17:082
371138699121,4cyclictest0-21swapper/221:14:012
3711386991210,1cyclictest0-21swapper/223:14:222
3711386991210,1cyclictest0-21swapper/221:54:232
3711386991210,1cyclictest0-21swapper/219:59:232
371138599129,2cyclictest0-21swapper/120:47:591
371138599120,6cyclictest3734518-21packagekitd19:25:001
2213291120,2phc2sys0-21swapper/323:54:273
2213291120,2phc2sys0-21swapper/323:44:013
2213291120,2phc2sys0-21swapper/323:16:023
2213291120,2phc2sys0-21swapper/321:57:423
2213291120,2phc2sys0-21swapper/320:33:593
2213291120,2phc2sys0-21swapper/320:23:573
2213291120,2phc2sys0-21swapper/319:30:263
2213291120,1phc2sys0-21swapper/322:27:473
2213291120,1phc2sys0-21swapper/300:34:473
371138599118,2cyclictest82050irq/121-eno121:56:151
371138599118,2cyclictest672436-21rs:main1
2213291111,2phc2sys0-21swapper/323:21:193
2213291111,2phc2sys0-21swapper/321:21:013
2213291110,3phc2sys0-21swapper/320:14:193
2213291110,2phc2sys0-21swapper/320:48:583
2213291110,2phc2sys0-21swapper/300:09:183
2213291110,1phc2sys0-21swapper/321:04:543
2213291110,1phc2sys0-21swapper/320:05:453
2213291101,4phc2sys0-21swapper/320:19:023
2213291101,2phc2sys0-21swapper/322:59:183
2213291101,2phc2sys0-21swapper/319:38:293
2213291100,3phc2sys0-21swapper/321:50:193
2213291100,3phc2sys0-21swapper/320:59:003
2213291100,2phc2sys0-21swapper/323:08:163
2213291100,2phc2sys0-21swapper/321:42:063
2213291100,2phc2sys0-21swapper/321:42:063
2213291100,2phc2sys0-21swapper/321:26:343
2213291100,2phc2sys0-21swapper/320:53:593
2213291100,2phc2sys0-21swapper/320:44:253
2213291100,2phc2sys0-21swapper/320:04:013
2213291100,2phc2sys0-21swapper/319:48:583
2213291100,2phc2sys0-21swapper/300:38:123
2213291100,2phc2sys0-21swapper/300:17:083
2213291100,2phc2sys0-21swapper/300:00:363
2213291100,1phc2sys0-21swapper/319:11:473
221329191,3phc2sys0-21swapper/319:09:173
221329190,2phc2sys0-21swapper/322:10:363
221329190,2phc2sys0-21swapper/321:45:063
221329190,2phc2sys0-21swapper/321:35:483
221329190,2phc2sys0-21swapper/320:35:033
221329190,2phc2sys0-21swapper/319:59:003
221329190,1phc2sys0-21swapper/322:00:093
37113869986,1cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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