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2026-08-19 - 05:09
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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 Wed Aug 19, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
46092721070,2sleep30-21swapper/323:00:133
19629621010,1sleep10-21swapper/119:49:501
3815322930,3sleep30-21swapper/322:05:143
5603632700,0sleep1560365-21grep00:05:201
4649212320,1sleep00-21swapper/023:02:540
4143682320,2sleep20-21swapper/222:30:062
150489993121,2cyclictest69250irq/121-eno122:00:011
150489993015,2cyclictest69250irq/121-eno100:29:481
150490992522,2cyclictest0-21swapper/222:10:012
150488992513,6cyclictest0-21swapper/021:49:480
150488992421,2cyclictest369488-21awk22:00:010
150490992319,2cyclictest0-21swapper/223:30:122
150489992320,2cyclictest289172-21grep21:05:021
150489992219,2cyclictest465841-21ssh23:05:011
150489992216,1cyclictest69250irq/121-eno121:20:031
150488992212,5cyclictest298147-21kthreadcore21:10:120
150490992112,1cyclictest0-21swapper/222:15:022
150489992118,2cyclictest714-21gdbus21:00:001
150489992118,2cyclictest547612-21dump-pmu-power00:00:001
150489992116,3cyclictest458642-21latency_hist23:00:021
15048899215,9cyclictest379879-21kthreadcore22:05:140
150488992110,6cyclictest0-21swapper/021:54:540
150490992017,1cyclictest0-21swapper/223:55:102
150490992017,1cyclictest0-21swapper/221:05:012
150490992017,1cyclictest0-21swapper/220:15:022
150489992017,2cyclictest227307-21grep20:15:031
150489992015,4cyclictest254374-21cut20:35:121
150489992015,4cyclictest254374-21cut20:35:121
15048899209,6cyclictest0-21swapper/023:20:100
15048899209,4cyclictest289-21systemd-udevd23:08:040
150488992014,2cyclictest69250irq/121-eno119:35:370
15048899200,3cyclictest398500-21ssh22:18:520
150490991916,1cyclictest0-21swapper/200:10:122
150489991916,2cyclictest495667-21gpgconf23:25:021
150489991916,2cyclictest239521-21apt-key20:25:021
15048899198,6cyclictest0-21swapper/023:50:100
15048899198,6cyclictest0-21swapper/021:20:150
15048899198,6cyclictest0-21swapper/000:04:560
15048899193,11cyclictest0-21swapper/021:15:180
150488991916,2cyclictest562740-21wc00:10:020
150488991910,8cyclictest0-21swapper/023:39:480
3240591181,3phc2sys0-21swapper/321:14:493
3240591180,2phc2sys0-21swapper/322:37:103
150490991816,1cyclictest0-21swapper/222:00:022
150490991816,1cyclictest0-21swapper/221:10:022
150490991815,1cyclictest0-21swapper/221:50:152
150490991815,1cyclictest0-21swapper/221:39:482
150490991815,1cyclictest0-21swapper/221:35:012
150490991815,1cyclictest0-21swapper/200:25:012
150490991815,1cyclictest0-21swapper/200:05:112
150490991812,4cyclictest0-21swapper/200:15:162
15048999182,13cyclictest664-21dbus-daemon00:15:021
150489991815,2cyclictest373638-21kthreadcore22:00:131
150489991815,2cyclictest349157-21kthreadcore21:45:131
150489991815,2cyclictest183988-21cron19:40:011
15048899183,5cyclictest171ktimers/022:33:590
150488991815,2cyclictest759-1atopacctd23:25:110
150488991815,2cyclictest688-21in:imuxsock20:11:570
150488991815,2cyclictest664-21dbus-daemon19:35:010
150488991815,2cyclictest413874-21/usr/sbin/munin22:30:010
150488991815,2cyclictest332466-21sh21:35:010
150488991815,2cyclictest261407-21grep20:40:130
150488991815,2cyclictest257830-21sh20:40:000
150488991815,2cyclictest257830-21sh20:40:000
150488991815,2cyclictest0-21swapper/000:25:010
150488991814,3cyclictest211615-21kthreadcore20:00:140
150488991812,5cyclictest422373-21interrupts22:35:100
15048899180,5cyclictest391669-21latency_hist22:15:010
1841782170,2sleep20-21swapper/219:40:012
15049099173,8cyclictest0-21swapper/221:17:102
15049099171,9cyclictest0-21swapper/219:54:512
150490991715,1cyclictest0-21swapper/223:40:022
150490991715,1cyclictest0-21swapper/220:30:032
150490991714,1cyclictest0-21swapper/223:10:082
150490991714,1cyclictest0-21swapper/220:25:012
150490991714,1cyclictest0-21swapper/220:18:442
150490991714,1cyclictest0-21swapper/219:30:022
150490991713,2cyclictest0-21swapper/222:35:132
150489991714,2cyclictest684-21systemd-logind20:50:011
150489991714,2cyclictest471213-21timerandwakeup23:05:161
150489991713,2cyclictest0-21swapper/120:55:011
150489991712,3cyclictest574908-21missed_timers00:15:141
150489991711,3cyclictest0-21swapper/122:15:131
150489991711,2cyclictest161141-21kthreadcore19:20:111
15048899179,4cyclictest1309-21mta-sts-daemon23:55:590
15048899179,4cyclictest0-21swapper/023:10:090
15048899178,6cyclictest451019-21/usr/sbin/munin22:55:010
15048899178,5cyclictest0-21swapper/023:40:100
150488991714,2cyclictest571412-21kthreadcore00:15:120
150488991714,2cyclictest371002-21kthreadcore22:00:120
150488991714,2cyclictest288777-21sh21:05:010
150488991714,2cyclictest203249-21sh19:55:080
150488991714,2cyclictest196479-21idleruntime-cro19:50:010
150488991712,4cyclictest217323-21kthreadcore20:05:160
150490991614,1cyclictest0-21swapper/221:00:012
150490991613,1cyclictest0-21swapper/223:50:012
150490991613,1cyclictest0-21swapper/223:25:022
150490991613,1cyclictest0-21swapper/223:19:502
150490991612,2cyclictest0-21swapper/222:45:022
150489991613,2cyclictest555101-21wc00:05:011
150489991613,2cyclictest380924-21kthreadcore22:05:131
150489991613,2cyclictest327729-21kthreadcore21:30:121
150489991613,2cyclictest318103-21tr21:25:061
150489991613,2cyclictest295885-21fschecks_time21:10:081
150489991613,2cyclictest220888-21sh20:10:011
150489991613,2cyclictest157522-21kthreadcore19:15:021
150489991613,2cyclictest1-21systemd19:31:561
150489991612,3cyclictest486019-21kworker/u16:3+nfsiod23:53:121
150489991612,3cyclictest188591-21kthreadcore19:40:141
150489991612,3cyclictest1307-21mta-sts-daemon21:24:541
150489991612,3cyclictest1300-21mta-sts-daemon22:11:511
150489991612,3cyclictest0-21swapper/123:35:021
15048899169,2cyclictest453988-21kthreadcore22:55:110
15048899165,2cyclictest443682-21latency_hist22:50:010
15048899162,5cyclictest491rcuog/221:41:450
150488991614,1cyclictest1034-21runrttasks22:21:330
150488991614,1cyclictest0-21swapper/020:25:010
150488991613,2cyclictest607579-21cut00:40:030
150488991613,2cyclictest485895-21mailstats23:15:160
150488991613,2cyclictest433930-21processes22:40:140
150488991613,2cyclictest277139-21gltestperf20:55:090
150488991613,2cyclictest272813-21kthreadcore20:50:110
150488991613,2cyclictest166067-21systemd19:25:020
150488991613,2cyclictest159023-21irqcore19:15:040
150488991613,2cyclictest0-21swapper/023:35:000
150488991613,2cyclictest0-21swapper/019:15:010
15048899161,10cyclictest265898-21grep20:45:100
3240591150,3phc2sys0-21swapper/323:37:183
3240591150,2phc2sys0-21swapper/323:11:043
3240591150,2phc2sys0-21swapper/322:00:023
3240591150,2phc2sys0-21swapper/300:09:133
3240591150,1phc2sys0-21swapper/322:56:493
150490991513,1cyclictest0-21swapper/223:00:022
150490991513,1cyclictest0-21swapper/221:10:132
150490991513,1cyclictest0-21swapper/200:05:022
150490991512,1cyclictest0-21swapper/223:52:502
150490991512,1cyclictest0-21swapper/221:49:582
150490991512,1cyclictest0-21swapper/221:25:082
150490991512,1cyclictest0-21swapper/221:21:592
150490991512,1cyclictest0-21swapper/200:37:242
150489991512,2cyclictest759-1atopacctd19:55:191
150489991512,2cyclictest577321-21sh00:20:031
150489991512,2cyclictest496215-21cpuspeed_turbos23:25:051
150489991512,2cyclictest430327-21kthreadcore22:40:101
150489991512,2cyclictest406435-21cron22:25:001
150489991512,2cyclictest358349-21kthreadcore21:50:111
150489991512,2cyclictest342873-21kthreadcore21:40:111
150489991512,2cyclictest335439-21kthreadcore21:35:131
150489991512,2cyclictest1307-21mta-sts-daemon00:36:011
150489991512,2cyclictest1300-21mta-sts-daemon23:15:491
150489991511,3cyclictest263080-21timerandwakeup20:40:181
150489991511,3cyclictest250707-21ptp4l20:30:151
150489991511,3cyclictest172060-21kworker/u16:1+nfsiod22:35:281
150489991511,3cyclictest1300-21mta-sts-daemon22:54:381
150489991511,2cyclictest69250irq/121-eno122:45:131
150489991510,4cyclictest1306-21mta-sts-daemon22:31:331
15048999150,5cyclictest0-21swapper/119:19:491
15048899159,5cyclictest0-21swapper/023:45:130
15048899157,5cyclictest566993-21kthreadcore00:10:140
15048899155,8cyclictest167365-21tr19:25:080
15048899151,3cyclictest197249-21grep19:50:080
150488991512,2cyclictest337989-21grep21:35:190
150488991512,2cyclictest246737-21sort20:30:100
150488991512,2cyclictest227621-21cstates20:15:070
150488991511,2cyclictest0-21swapper/000:35:020
3240591149,2phc2sys0-21swapper/319:35:123
3240591141,6phc2sys0-21swapper/320:59:503
3240591141,3phc2sys0-21swapper/321:44:513
3240591140,4phc2sys0-21swapper/323:18:133
3240591140,4phc2sys0-21swapper/319:55:193
3240591140,2phc2sys0-21swapper/322:29:363
3240591140,2phc2sys0-21swapper/300:04:003
3240591140,1phc2sys0-21swapper/321:34:493
15049099141,9cyclictest0-21swapper/220:40:002
15049099141,9cyclictest0-21swapper/220:40:002
150490991412,1cyclictest0-21swapper/223:45:022
150490991412,1cyclictest0-21swapper/222:45:032
150490991412,1cyclictest0-21swapper/222:20:082
150490991412,1cyclictest0-21swapper/219:40:102
150490991412,1cyclictest0-21swapper/219:15:032
150490991411,1cyclictest0-21swapper/223:25:172
150490991411,1cyclictest0-21swapper/223:09:462
150490991411,1cyclictest0-21swapper/221:42:532
150490991411,1cyclictest0-21swapper/220:00:142
150490991411,1cyclictest0-21swapper/219:20:072
150490991411,1cyclictest0-21swapper/200:33:202
150490991410,2cyclictest0-21swapper/219:10:122
15048999149,2cyclictest1307-21mta-sts-daemon21:05:071
150489991411,2cyclictest595869-21kthreadcore00:30:111
150489991411,2cyclictest525702-21cpu23:45:061
150489991411,2cyclictest407733-21irqcore22:25:111
150489991411,2cyclictest231377-21kthreadcore20:15:131
150489991411,2cyclictest199416-21kthreadcore19:50:121
150489991411,2cyclictest168725-21kthreadcore19:25:091
150489991411,2cyclictest0-21swapper/123:40:051
150489991410,3cyclictest1307-21mta-sts-daemon23:35:281
15048899149,1cyclictest1157598rtkit-daemon19:42:140
15048899148,2cyclictest295059-21diskmemload21:25:080
15048899145,7cyclictest289532-21expr21:05:060
150488991411,2cyclictest588328-21kthreadcore00:25:120
150488991411,2cyclictest240222-21sh20:25:070
5013982131,6sleep30-21swapper/323:25:233
3240591130,2phc2sys0-21swapper/323:55:303
3240591130,2phc2sys0-21swapper/323:52:323
3240591130,2phc2sys0-21swapper/322:20:543
3240591130,2phc2sys0-21swapper/321:17:183
3240591130,2phc2sys0-21swapper/320:30:163
3240591130,2phc2sys0-21swapper/320:00:073
150490991311,1cyclictest0-21swapper/223:00:132
150490991311,1cyclictest0-21swapper/222:25:082
150490991311,1cyclictest0-21swapper/220:50:082
150490991311,1cyclictest0-21swapper/220:45:082
150490991311,1cyclictest0-21swapper/220:40:122
150490991310,2cyclictest0-21swapper/222:15:062
150490991310,1cyclictest0-21swapper/222:00:132
150490991310,1cyclictest0-21swapper/219:55:112
150490991310,1cyclictest0-21swapper/219:45:112
150490991310,1cyclictest0-21swapper/200:25:102
150489991310,2cyclictest243175-21kthreadcore20:25:121
150489991310,2cyclictest150427-21munin-plugin-st19:10:011
3240591121,2phc2sys0-21swapper/320:14:503
3240591120,3phc2sys0-21swapper/323:34:173
3240591120,2phc2sys0-21swapper/322:00:263
3240591120,2phc2sys0-21swapper/321:35:543
3240591120,2phc2sys0-21swapper/300:16:463
3240591120,1phc2sys0-21swapper/321:45:233
3240591120,1phc2sys0-21swapper/321:22:033
15049099129,1cyclictest0-21swapper/222:50:112
15049099129,1cyclictest0-21swapper/219:30:132
15049099122,5cyclictest0-21swapper/220:10:002
150490991210,1cyclictest0-21swapper/220:30:102
15048999128,3cyclictest474751-21kthreadcore23:10:121
15048999125,6cyclictest211709-21tr20:00:141
15048899129,2cyclictest150657-21systemd-run19:10:020
3240591113,2phc2sys0-21swapper/300:39:063
3240591111,2phc2sys0-21swapper/323:25:033
3240591111,2phc2sys0-21swapper/300:20:073
3240591111,2phc2sys0-21swapper/300:10:133
3240591110,2phc2sys0-21swapper/323:42:513
3240591110,2phc2sys0-21swapper/322:15:013
3240591110,2phc2sys0-21swapper/320:45:073
3240591110,2phc2sys0-21swapper/319:29:503
3240591110,1phc2sys0-21swapper/320:42:273
3240591110,1phc2sys0-21swapper/319:20:443
3240591110,1phc2sys0-21swapper/319:18:083
3240591102,2phc2sys0-21swapper/322:42:433
3240591101,2phc2sys0-21swapper/323:05:393
3240591101,2phc2sys0-21swapper/322:30:163
3240591101,2phc2sys0-21swapper/321:53:373
3240591101,2phc2sys0-21swapper/319:50:013
3240591101,2phc2sys0-21swapper/319:05:053
3240591100,2phc2sys0-21swapper/322:48:323
3240591100,2phc2sys0-21swapper/322:16:583
3240591100,2phc2sys0-21swapper/321:00:073
3240591100,2phc2sys0-21swapper/320:52:153
3240591100,2phc2sys0-21swapper/320:20:113
3240591100,2phc2sys0-21swapper/300:33:013
3240591100,1phc2sys0-21swapper/320:06:563
324059191,2phc2sys0-21swapper/322:50:283
324059191,2phc2sys0-21swapper/319:40:123
324059191,2phc2sys0-21swapper/319:30:183
324059190,2phc2sys0-21swapper/323:45:123
324059190,2phc2sys0-21swapper/321:25:243
324059190,2phc2sys0-21swapper/321:05:123
324059190,2phc2sys0-21swapper/320:35:093
324059190,2phc2sys0-21swapper/320:35:093
324059190,2phc2sys0-21swapper/319:50:093
324059190,2phc2sys0-21swapper/319:10:493
324059190,2phc2sys0-21swapper/300:25:523
324059190,1phc2sys0-21swapper/320:18:033
324059180,2phc2sys0-21swapper/320:25:083
1504909985,1cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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