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2026-05-19 - 10:40
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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 all highest latencies:
System rackeslot2.osadl.org (updated Tue May 19, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16685882960,5sleep01668594-21cut22:45:090
15170702890,1sleep10-21swapper/121:05:101
16576472580,1sleep01657645-21ssh22:36:360
14810552490,2sleep0241rcuc/020:35:110
1367889993027,1cyclictest0-21swapper/219:15:012
1367887992822,2cyclictest134050irq/121-eno100:15:111
16999982260,2sleep00-21swapper/023:05:110
1367887992623,2cyclictest351ktimers/121:45:011
1367883992614,4cyclictest16-21ksoftirqd/020:30:020
1367889992521,2cyclictest0-21swapper/221:55:062
1367883992523,1cyclictest1735231-21ssh23:30:010
1367883992522,2cyclictest0-21swapper/000:25:010
1367883992518,6cyclictest1834680-21systemd-run00:35:000
1367887992421,2cyclictest3851875-21systemd-journal19:15:021
1367887992421,2cyclictest1567315-21aten2.4-expect21:40:021
1367887992421,2cyclictest1452426-21sh20:15:011
1367883992412,4cyclictest171ktimers/020:20:000
1367887992320,2cyclictest1735320-21ssh23:30:021
1367887992320,2cyclictest1464982-21latency_hist20:25:011
1367887992314,5cyclictest1996-21runrttasks22:08:491
1367887992313,3cyclictest0-21swapper/123:20:021
1367883992320,2cyclictest1620983-21systemd-run22:15:020
1367883992320,2cyclictest1433572-21sh20:00:010
1367883992315,7cyclictest0-21swapper/023:20:010
1367883992313,3cyclictest1759771-21kernelversion23:45:120
136788799228,7cyclictest1514979-21kworker/1:1+events_freezable21:21:361
136788799224,1cyclictest191rcu_preempt20:50:031
1367887992212,3cyclictest0-21swapper/122:00:041
1367887992210,3cyclictest0-21swapper/100:05:011
1367883992219,2cyclictest1489834-21latency_hist20:45:010
1367883992219,2cyclictest1-21systemd21:55:000
1367883992212,6cyclictest0-21swapper/000:10:010
1367883992212,3cyclictest1400991-21sendmail_mailqu19:30:140
1367883992212,3cyclictest1400991-21sendmail_mailqu19:30:140
1367883992211,6cyclictest1548664-21kthreadcore21:25:100
16242872210,2sleep01624289-21kthreadcore22:15:110
1367887992118,2cyclictest1414334-21sh19:45:021
1367887992118,2cyclictest1296-21polkitd19:40:001
1367887992117,3cyclictest1750553-21aten2.4-expect23:40:021
1367887992116,1cyclictest1812450-21ssh00:20:051
1367887992115,2cyclictest134050irq/121-eno123:35:011
1367883992118,2cyclictest1582888-21aten_repower_fr21:50:020
1367883992118,2cyclictest1420872-21latency_hist19:50:000
1367883992118,2cyclictest0-21swapper/019:45:000
1367883992112,3cyclictest16-21ksoftirqd/023:05:010
1367883992111,5cyclictest16-21ksoftirqd/000:20:000
1367883992111,5cyclictest0-21swapper/023:35:020
1367889992017,1cyclictest0-21swapper/219:45:012
136788999201,14cyclictest0-21swapper/221:10:012
136788799209,2cyclictest1396566-21gltestperf19:30:081
136788799209,2cyclictest1396566-21gltestperf19:30:071
136788799206,4cyclictest1521195-21diskmemload23:07:131
1367887992017,2cyclictest1510277-21kthreadcore21:00:121
1367887992017,2cyclictest1438784-21proc_pri20:00:121
1367887992017,2cyclictest1-21systemd22:20:021
1367887992017,2cyclictest0-21swapper/122:40:021
1367887992017,2cyclictest0-21swapper/121:20:001
1367887992017,2cyclictest0-21swapper/100:30:001
1367887992016,1cyclictest191rcu_preempt22:25:141
1367887992015,1cyclictest191rcu_preempt19:15:031
1367887992014,2cyclictest134050irq/121-eno123:10:081
1367887992010,2cyclictest1500337-21kthreadcore20:50:101
136788399207,5cyclictest0-21swapper/000:35:050
1367883992017,2cyclictest3851705-21mta-sts-daemon23:42:150
1367883992017,2cyclictest1712152-21cron23:15:000
1367883992017,2cyclictest1452312-21apt-get20:15:010
1367883992017,2cyclictest1439934-21apt-get20:05:010
1367883992017,2cyclictest1374583-21grep19:15:020
136788399201,17cyclictest1780969-21latency_hist00:00:000
1367883992010,9cyclictest1768293-21kthreadcore23:50:110
136788399200,8cyclictest1575189-21latency_hist21:45:030
1367889991917,1cyclictest0-21swapper/220:00:002
1367889991917,1cyclictest0-21swapper/219:20:012
1367889991916,1cyclictest0-21swapper/221:30:002
136788799199,3cyclictest0-21swapper/120:00:021
1367887991917,1cyclictest0-21swapper/120:15:021
1367887991917,1cyclictest0-21swapper/119:45:001
1367887991916,2cyclictest1773490-21telnet23:55:001
1367887991916,2cyclictest1758426-21/usr/sbin/munin23:45:171
1367887991916,2cyclictest1691060-21kthreadcore23:00:101
1367887991916,2cyclictest1421534-21cstates19:50:041
1367887991916,2cyclictest1290-21dbus-daemon22:25:001
1367887991915,3cyclictest1830285-21kthreadcore00:30:091
1367887991915,3cyclictest1554999-21kthreadcore21:30:101
1367887991911,3cyclictest36-21ksoftirqd/100:40:021
136788399199,6cyclictest0-21swapper/021:57:440
136788399199,4cyclictest1109-21hwrng21:35:090
136788399199,2cyclictest1501592-21awk20:50:140
136788399198,5cyclictest16-21ksoftirqd/019:10:020
136788399195,6cyclictest0-21swapper/021:05:010
1367883991916,2cyclictest1803986-21latency_hist00:15:000
1367883991916,2cyclictest1750438-21sh23:40:020
1367883991916,2cyclictest1559430-21latency_hist21:35:010
1367883991916,2cyclictest1445960-21cut20:10:000
1367883991916,2cyclictest0-21swapper/023:25:020
1367883991916,2cyclictest0-21swapper/023:25:020
1367883991914,1cyclictest191rcu_preempt20:30:020
136788399191,3cyclictest1382388-21timerandwakeup19:15:200
1367883991910,1cyclictest0-21swapper/020:45:020
136788399190,6cyclictest1681916-21munin-run22:55:010
2649091180,2phc2sys0-21swapper/323:17:013
2649091180,2phc2sys0-21swapper/322:13:263
2649091180,2phc2sys0-21swapper/300:13:213
1367889991815,1cyclictest0-21swapper/223:25:002
1367889991815,1cyclictest0-21swapper/223:25:002
1367889991815,1cyclictest0-21swapper/221:10:162
1367889991815,1cyclictest0-21swapper/220:20:012
1367889991810,3cyclictest0-21swapper/221:00:152
136788799189,2cyclictest1590194-21latency_hist21:55:021
136788799188,6cyclictest1605517-21kworker/1:1+events_freezable23:21:221
136788799188,6cyclictest1605517-21kworker/1:1+events_freezable23:21:211
136788799188,4cyclictest0-21swapper/122:55:031
136788799187,2cyclictest0-21swapper/120:40:001
1367887991815,2cyclictest1792344-21kthreadcore00:05:111
1367887991815,2cyclictest1776944-21kthreadcore23:55:071
1367887991815,2cyclictest1671853-21head22:45:131
1367887991815,2cyclictest1503341-21fschecks_time20:55:061
1367887991815,2cyclictest1489272-21timerwakeupswit20:40:161
1367887991815,2cyclictest1326-21systemd-logind00:15:001
1367887991815,2cyclictest1-21systemd19:22:451
1367887991813,1cyclictest191rcu_preempt21:10:471
1367887991813,1cyclictest1550437-21rm21:26:071
1367887991812,1cyclictest191rcu_preempt20:05:081
1367887991810,3cyclictest36-21ksoftirqd/123:45:021
136788399188,5cyclictest16-21ksoftirqd/022:45:000
136788399186,2cyclictest1827059-21/usr/sbin/munin00:30:020
136788399185,2cyclictest1536719-21apt-get21:20:020
1367883991815,2cyclictest1605566-21grep22:05:010
1367883991811,2cyclictest191rcu_preempt22:55:110
1367883991810,7cyclictest0-21swapper/000:00:160
2649091170,4phc2sys0-21swapper/322:40:013
2649091170,2phc2sys0-21swapper/319:15:153
1367889991712,1cyclictest0-21swapper/200:00:042
136788999170,14cyclictest0-21swapper/223:00:012
136788799179,2cyclictest1643881-21/usr/sbin/munin22:30:081
136788799178,4cyclictest1567241-21kworker/1:2+events_freezable21:47:551
136788799177,3cyclictest1368155-21aten2.4-expect19:10:031
136788799177,2cyclictest0-21swapper/119:25:091
1367887991714,2cyclictest1674727-21cpuspeed_turbos22:50:031
1367887991714,2cyclictest1666655-21systemd-run22:45:011
1367887991714,2cyclictest1467960-21kthreadcore20:25:091
1367887991711,1cyclictest191rcu_preempt20:35:011
136788399178,5cyclictest1629050-21cstates22:20:040
136788399178,1cyclictest191rcu_preempt22:06:270
136788399176,2cyclictest17350irq/127-ahci[0000:00:17.0]19:25:000
136788399172,2cyclictest191rcu_preempt22:30:120
1367883991714,2cyclictest1637062-21sh22:25:060
1367883991714,2cyclictest1537450-21fschecks_count21:20:050
1367883991714,2cyclictest1-21systemd21:10:010
136788399170,9cyclictest1522121-21fschecks_count21:10:050
2649091160,2phc2sys0-21swapper/323:32:163
2649091160,2phc2sys0-21swapper/322:22:213
2649091160,2phc2sys0-21swapper/322:16:403
2649091160,1phc2sys0-21swapper/322:49:233
1367889991614,1cyclictest0-21swapper/223:10:022
1367889991614,1cyclictest0-21swapper/222:20:012
1367889991614,1cyclictest0-21swapper/219:10:022
1367889991613,1cyclictest0-21swapper/223:45:082
1367889991613,1cyclictest0-21swapper/221:00:012
1367889991613,1cyclictest0-21swapper/220:50:012
1367889991613,1cyclictest0-21swapper/220:45:012
1367889991612,2cyclictest15998302sleep222:00:102
1367889991612,2cyclictest0-21swapper/222:38:532
136788999161,13cyclictest0-21swapper/221:55:022
1367889991611,2cyclictest0-21swapper/220:01:462
136788999161,10cyclictest0-21swapper/223:20:012
1367887991613,2cyclictest0-21swapper/121:55:031
1367887991612,1cyclictest191rcu_preempt22:10:111
136788399167,2cyclictest191rcu_preempt20:20:090
136788399166,3cyclictest1503127-21expr20:55:040
136788399166,2cyclictest601rcuop/319:26:180
136788399166,2cyclictest191rcu_preempt19:50:040
136788399161,7cyclictest1996-21runrttasks19:35:050
2649091151,3phc2sys0-21swapper/323:10:033
2649091150,2phc2sys0-21swapper/319:33:223
2649091150,2phc2sys0-21swapper/319:33:223
2649091150,1phc2sys0-21swapper/323:39:173
2649091150,1phc2sys0-21swapper/321:19:553
136788999155,3cyclictest0-21swapper/219:45:032
136788999151,8cyclictest0-21swapper/220:30:012
1367889991513,1cyclictest0-21swapper/223:00:052
1367889991513,1cyclictest0-21swapper/222:25:022
1367889991513,1cyclictest0-21swapper/222:10:032
1367889991513,1cyclictest0-21swapper/221:20:092
1367889991513,1cyclictest0-21swapper/200:20:002
1367889991513,1cyclictest0-21swapper/200:15:022
1367889991512,1cyclictest0-21swapper/223:45:022
1367889991512,1cyclictest0-21swapper/223:35:092
1367889991512,1cyclictest0-21swapper/222:42:092
1367889991512,1cyclictest0-21swapper/222:30:102
1367889991512,1cyclictest0-21swapper/222:07:572
1367889991512,1cyclictest0-21swapper/221:40:262
1367889991512,1cyclictest0-21swapper/221:36:232
1367889991512,1cyclictest0-21swapper/221:34:532
1367889991512,1cyclictest0-21swapper/221:15:302
1367889991512,1cyclictest0-21swapper/220:35:002
1367889991512,1cyclictest0-21swapper/219:20:022
1367889991512,1cyclictest0-21swapper/200:23:322
1367889991511,2cyclictest0-21swapper/200:35:142
2649091145,3phc2sys0-21swapper/320:55:013
2649091140,6phc2sys0-21swapper/323:41:563
2649091140,4phc2sys0-21swapper/321:10:023
2649091140,2phc2sys0-21swapper/321:31:113
2649091140,1phc2sys0-21swapper/321:41:123
1367889991412,1cyclictest0-21swapper/223:50:122
1367889991412,1cyclictest0-21swapper/222:30:002
1367889991412,1cyclictest0-21swapper/219:35:002
1367889991412,1cyclictest0-21swapper/219:35:002
1367889991411,1cyclictest0-21swapper/221:46:222
1367889991411,1cyclictest0-21swapper/200:31:092
1367889991410,2cyclictest0-21swapper/223:30:212
1367889991410,2cyclictest0-21swapper/223:28:082
1367889991410,2cyclictest0-21swapper/222:50:092
1367889991410,2cyclictest0-21swapper/222:45:112
1367889991410,2cyclictest0-21swapper/220:20:182
1367889991410,2cyclictest0-21swapper/220:05:032
1367889991410,2cyclictest0-21swapper/219:25:092
1367889991410,2cyclictest0-21swapper/200:29:442
136788999140,7cyclictest0-21swapper/200:05:032
2649091131,4phc2sys0-21swapper/322:10:023
2649091131,3phc2sys0-21swapper/320:10:033
2649091130,2phc2sys0-21swapper/322:56:253
2649091130,2phc2sys0-21swapper/321:39:203
2649091130,2phc2sys0-21swapper/300:09:113
2649091130,1phc2sys0-21swapper/323:54:523
2649091130,1phc2sys0-21swapper/320:58:203
2649091130,1phc2sys0-21swapper/320:26:463
2649091130,1phc2sys0-21swapper/300:29:593
136788999139,2cyclictest0-21swapper/219:35:082
136788999132,7cyclictest0-21swapper/220:35:032
1367889991311,1cyclictest0-21swapper/223:55:062
1367889991311,1cyclictest0-21swapper/223:10:062
1367889991311,1cyclictest0-21swapper/220:50:092
1367889991310,1cyclictest0-21swapper/219:50:152
2649091122,2phc2sys0-21swapper/300:24:063
2649091121,2phc2sys0-21swapper/321:25:013
2649091120,2phc2sys0-21swapper/323:46:593
2649091120,2phc2sys0-21swapper/321:26:293
2649091120,2phc2sys0-21swapper/319:50:033
2649091120,2phc2sys0-21swapper/319:45:103
2649091120,2phc2sys0-21swapper/319:40:043
2649091120,2phc2sys0-21swapper/319:38:273
2649091120,2phc2sys0-21swapper/300:17:533
2649091120,1phc2sys0-21swapper/322:50:363
1367889991210,1cyclictest0-21swapper/220:10:112
2649091113,2phc2sys0-21swapper/321:48:263
2649091113,2phc2sys0-21swapper/300:31:523
2649091112,2phc2sys0-21swapper/323:55:083
2649091112,1phc2sys0-21swapper/322:26:093
2649091111,3phc2sys0-21swapper/320:50:023
2649091111,2phc2sys0-21swapper/323:05:103
2649091110,5phc2sys0-21swapper/322:00:033
2649091110,3phc2sys0-21swapper/322:41:263
2649091110,2phc2sys0-21swapper/322:30:023
2649091110,1phc2sys0-21swapper/320:03:423
2649091110,1phc2sys0-21swapper/319:22:333
2649091102,2phc2sys0-21swapper/321:56:153
2649091101,2phc2sys0-21swapper/300:36:493
2649091100,3phc2sys0-21swapper/321:00:043
2649091100,2phc2sys0-21swapper/323:25:223
2649091100,2phc2sys0-21swapper/323:00:053
2649091100,2phc2sys0-21swapper/321:50:143
2649091100,2phc2sys0-21swapper/320:30:073
2649091100,2phc2sys0-21swapper/320:20:093
2649091100,2phc2sys0-21swapper/319:14:453
2649091100,2phc2sys0-21swapper/319:09:273
2649091100,1phc2sys0-21swapper/320:41:253
2649091100,1phc2sys0-21swapper/320:18:523
2649091100,1phc2sys0-21swapper/319:58:453
264909190,2phc2sys0-21swapper/323:21:023
264909190,2phc2sys0-21swapper/323:21:023
264909190,2phc2sys0-21swapper/321:05:173
264909190,2phc2sys0-21swapper/320:35:033
264909190,2phc2sys0-21swapper/319:25:023
264909190,2phc2sys0-21swapper/300:00:103
264909180,2phc2sys0-21swapper/320:05:063
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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