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2026-05-20 - 11:58
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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 highest latencies:
System rackeslot2.osadl.org (updated Wed May 20, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
354541722000,2sleep30-21swapper/322:00:063
368553821500,2sleep30-21swapper/323:30:093
339913221010,2sleep30-21swapper/320:15:013
36211382720,2sleep30-21swapper/322:50:003
37044182340,1sleep13704419-21sh23:44:171
33424322330,2sleep3551rcuc/319:30:013
3314757992522,2cyclictest3436817-21systemd20:45:001
37635232240,1sleep20-21swapper/200:20:142
3314756992315,7cyclictest0-21swapper/019:30:000
3314758992220,1cyclictest0-21swapper/222:15:022
3314757992219,2cyclictest3590129-21apt-get22:30:031
3314757992219,2cyclictest3449714-21sh20:55:011
3314756992219,2cyclictest3789212-21diskmemload00:40:000
3314756992219,2cyclictest3606043-21systemd-run22:40:020
3314756992210,6cyclictest0-21swapper/023:30:020
331475799218,2cyclictest134050irq/121-eno121:48:151
3314757992118,2cyclictest1290-21dbus-daemon21:30:001
3314756992118,2cyclictest3513923-21runrttasks21:40:010
3314756992118,2cyclictest3513923-21runrttasks21:40:010
331475699211,14cyclictest3726110-21/usr/sbin/munin23:55:140
3314758992018,1cyclictest0-21swapper/221:00:002
3314758992018,1cyclictest0-21swapper/219:55:012
3314758992018,1cyclictest0-21swapper/219:55:012
3314758992017,1cyclictest0-21swapper/222:40:012
3314758992017,1cyclictest0-21swapper/222:10:002
3314758992017,1cyclictest0-21swapper/220:00:012
3314757992016,3cyclictest3687176-21needreboot23:30:101
3314757992015,3cyclictest0-21swapper/100:35:021
3314756992014,2cyclictest383433398rtkit-daemon21:04:140
3314756992013,6cyclictest3521367-21cron21:45:000
3314756992012,7cyclictest3485021-21kthreadcore21:20:090
3314756992010,5cyclictest0-21swapper/022:45:080
3314758991917,1cyclictest0-21swapper/222:30:012
3314758991916,1cyclictest0-21swapper/222:30:092
3314757991917,1cyclictest3674203-21cron23:25:001
3314757991916,2cyclictest3697304-21latency_hist23:40:011
3314757991916,2cyclictest3621206-21systemd-run22:50:011
3314757991916,2cyclictest3598128-21sh22:35:011
3314757991916,2cyclictest3513855-21grep21:40:021
3314757991916,2cyclictest3513855-21grep21:40:011
3314757991916,2cyclictest3506557-21/usr/sbin/munin21:35:021
3314757991916,2cyclictest3491449-21latency_hist21:25:011
3314757991916,2cyclictest3330328-21latency_hist19:20:021
3314757991916,2cyclictest0-21swapper/121:45:011
3314757991915,2cyclictest134050irq/121-eno122:15:011
331475699199,6cyclictest3346780-21kthreadcore19:30:080
3314756991916,2cyclictest3314754-21cyclictest00:30:040
33635682180,0sleep03363569-21cat19:45:080
331475899189,6cyclictest0-21swapper/219:30:002
3314758991816,1cyclictest0-21swapper/221:55:032
3314758991815,1cyclictest0-21swapper/223:42:432
3314758991815,1cyclictest0-21swapper/223:00:012
3314758991815,1cyclictest0-21swapper/222:25:002
3314758991815,1cyclictest0-21swapper/221:50:012
3314757991815,2cyclictest3834587-17auditd21:59:141
3314757991815,2cyclictest3743122-21latency_hist00:10:011
3314757991815,2cyclictest3483552-21aten_repower_cu21:20:011
3314757991815,2cyclictest0-21swapper/123:50:021
3314757991815,2cyclictest0-21swapper/120:20:021
331475699189,8cyclictest3706039-21irqcore23:45:080
331475699189,5cyclictest3851702-21mta-sts-daemon22:01:550
331475699188,5cyclictest0-21swapper/022:10:110
331475699187,6cyclictest0-21swapper/000:05:130
3314756991816,1cyclictest3336041-21cron19:25:000
331475699181,5cyclictest3506220-21ssh21:35:000
3314756991815,2cyclictest3674357-21latency_hist23:25:000
3314756991815,2cyclictest1290-21dbus-daemon20:05:010
3314756991815,2cyclictest1290-21dbus-daemon00:15:000
3314756991815,2cyclictest0-21swapper/021:50:010
3314756991811,2cyclictest3418015-21/usr/sbin/munin20:30:060
2649091180,2phc2sys0-21swapper/323:41:163
2649091180,2phc2sys0-21swapper/323:15:393
2649091180,2phc2sys0-21swapper/322:06:323
331475899172,9cyclictest0-21swapper/221:20:002
331475899171,7cyclictest0-21swapper/219:50:002
3314758991715,1cyclictest0-21swapper/223:40:012
3314758991715,1cyclictest0-21swapper/222:50:022
3314758991715,1cyclictest0-21swapper/221:10:152
3314758991715,1cyclictest0-21swapper/220:55:012
3314758991714,1cyclictest0-21swapper/223:50:092
3314758991714,1cyclictest0-21swapper/221:35:042
3314758991714,1cyclictest0-21swapper/221:35:042
3314757991714,2cyclictest3827634-1atopacctd00:20:151
3314757991714,2cyclictest3751491-21cstates00:15:021
3314757991714,2cyclictest3721115-21gltestperf23:55:031
3314757991714,2cyclictest3676252-21kthreadcore23:25:071
3314757991714,2cyclictest3606443-21cpuspeed_turbos22:40:031
3314757991714,2cyclictest3572905-21mailstats22:15:141
3314757991714,2cyclictest3552190-21cut22:05:001
3314757991714,2cyclictest3380517-21aten_repower_fr20:00:011
3314757991714,2cyclictest1326-21systemd-logind20:40:021
3314757991714,2cyclictest0-21swapper/123:05:041
3314757991714,2cyclictest0-21swapper/123:05:031
3314757991711,1cyclictest383433398rtkit-daemon23:54:511
331475699178,5cyclictest3732104-21kthreadcore00:00:120
331475699178,5cyclictest0-21swapper/023:44:560
331475699172,10cyclictest3560117-21kworker/u16:3+nfsiod22:30:100
331475699171,9cyclictest0-21swapper/000:27:150
3314756991715,1cyclictest0-21swapper/023:35:000
3314756991714,2cyclictest3697436-21aten_repower_vo23:40:010
3314756991714,2cyclictest3639552-21kthreadcore23:00:080
3314756991714,2cyclictest3629229-21sh22:55:020
3314756991714,2cyclictest3443217-21aten_repower_cu20:50:010
3314756991714,2cyclictest3425026-21cut20:35:040
3314756991714,2cyclictest3418014-21journal-offline20:30:000
3314756991714,2cyclictest3418014-21journal-offline20:30:000
3314756991714,2cyclictest3330189-21cpuspeed_turbos19:20:010
3314756991714,2cyclictest1290-21dbus-daemon23:00:020
3314756991714,2cyclictest0-21swapper/020:00:010
331475699171,3cyclictest3498595-21basename21:30:000
3314756991713,2cyclictest0-21swapper/023:55:000
3314756991710,6cyclictest0-21swapper/021:50:030
2649091171,5phc2sys0-21swapper/320:50:013
2649091170,2phc2sys0-21swapper/300:23:453
2649091170,1phc2sys0-21swapper/320:04:093
383433398160,2rtkit-daemon0-21swapper/119:12:181
3314758991614,1cyclictest0-21swapper/223:10:012
3314758991614,1cyclictest0-21swapper/223:10:012
3314758991614,1cyclictest0-21swapper/222:45:002
3314758991614,1cyclictest0-21swapper/221:25:012
3314758991614,1cyclictest0-21swapper/200:15:022
3314758991613,1cyclictest0-21swapper/223:25:162
3314758991613,1cyclictest0-21swapper/221:30:072
3314758991612,2cyclictest0-21swapper/219:22:312
3314757991614,1cyclictest0-21swapper/123:00:021
3314757991613,2cyclictest3758374-21readlink00:20:001
3314757991613,2cyclictest3652350-21forks23:10:041
3314757991613,2cyclictest3652350-21forks23:10:031
3314757991613,2cyclictest3643999-21munin-run23:05:001
3314757991613,2cyclictest3603864-21grep22:35:151
3314757991613,2cyclictest3534566-21mailstats21:50:141
3314757991613,2cyclictest3468492-21/usr/sbin/munin21:10:021
3314757991613,2cyclictest3455859-21sh21:00:011
3314757991613,2cyclictest3411798-21sh20:25:011
3314757991613,2cyclictest3380840-21cpuspeed_turbos20:00:021
3314757991613,2cyclictest3374056-21apt-config19:55:011
3314757991613,2cyclictest3374056-21apt-config19:55:011
3314757991613,2cyclictest3314764-21/usr/sbin/munin19:10:001
3314757991613,2cyclictest3314764-21/usr/sbin/munin19:10:001
3314757991613,2cyclictest3314754-21cyclictest00:25:121
3314757991612,3cyclictest3338267-21kthreadcore19:25:071
3314757991612,2cyclictest3355209-21aten2.4-expect19:40:011
3314757991611,4cyclictest3412458-21sort20:25:041
3314757991611,4cyclictest3412458-21sort20:25:041
331475799160,4cyclictest3361156-21latency_hist19:45:001
331475699168,4cyclictest0-21swapper/022:20:020
331475699168,2cyclictest0-21swapper/021:15:070
3314756991613,2cyclictest3827634-1atopacctd19:40:040
3314756991613,2cyclictest3552836-21cstates22:05:040
3314756991613,2cyclictest3315624-21fschecks_time19:10:080
3314756991613,2cyclictest0-21swapper/023:15:010
3314756991613,2cyclictest0-21swapper/023:15:010
3314756991613,2cyclictest0-21swapper/022:20:010
3314756991613,2cyclictest0-21swapper/020:10:020
3314756991612,2cyclictest0-21swapper/023:10:020
3314756991612,2cyclictest0-21swapper/023:10:020
3314756991611,3cyclictest0-21swapper/020:25:010
2649091160,4phc2sys0-21swapper/323:00:563
2649091160,2phc2sys0-21swapper/321:38:353
2649091160,2phc2sys0-21swapper/321:38:353
2649091160,1phc2sys0-21swapper/300:29:303
331475899151,5cyclictest0-21swapper/221:10:002
3314758991513,1cyclictest0-21swapper/223:05:022
3314758991513,1cyclictest0-21swapper/222:19:512
3314758991513,1cyclictest0-21swapper/220:45:092
3314758991513,1cyclictest0-21swapper/219:45:012
3314758991513,1cyclictest0-21swapper/219:40:012
3314758991513,1cyclictest0-21swapper/200:35:032
3314758991513,1cyclictest0-21swapper/200:05:162
3314758991512,1cyclictest0-21swapper/223:20:112
3314758991512,1cyclictest0-21swapper/221:45:022
3314758991512,1cyclictest0-21swapper/220:30:012
3314758991512,1cyclictest0-21swapper/220:30:002
3314758991512,1cyclictest0-21swapper/220:20:012
3314758991512,1cyclictest0-21swapper/219:20:002
3314758991512,1cyclictest0-21swapper/219:15:002
3314758991511,2cyclictest0-21swapper/223:15:372
3314757991513,1cyclictest3851703-21mta-sts-daemon00:01:171
3314757991512,2cyclictest3420566-21kthreadcore20:30:091
3314757991512,2cyclictest3399092-21perf20:15:001
3314757991512,2cyclictest3386916-21tail20:05:031
3314757991512,2cyclictest0-21swapper/122:55:001
3314757991511,3cyclictest3366251-21latency19:45:101
3314757991510,4cyclictest3851702-21mta-sts-daemon22:05:271
3314756991512,2cyclictest3540042-21kthreadcore21:55:090
3314756991512,2cyclictest3471438-21kthreadcore21:10:100
3314756991512,2cyclictest3462734-21cut21:05:050
3314756991512,2cyclictest3436920-21latency_hist20:45:010
3314756991512,2cyclictest3404616-21switchtime20:15:150
3314756991512,2cyclictest3351897-21kthreadcore19:35:090
3314756991511,2cyclictest0-21swapper/021:00:000
331475699150,8cyclictest3373829-21/usr/sbin/munin19:55:020
331475699150,8cyclictest3373829-21/usr/sbin/munin19:55:010
331475699150,11cyclictest3606750-21ssh22:40:050
331475699150,10cyclictest3758821-21/usr/sbin/munin00:20:100
2649091153,2phc2sys0-21swapper/323:36:163
2649091151,5phc2sys0-21swapper/322:16:133
2649091150,3phc2sys0-21swapper/322:10:263
2649091150,2phc2sys0-21swapper/322:35:463
3314758991412,1cyclictest0-21swapper/222:55:002
3314758991412,1cyclictest0-21swapper/222:00:152
3314758991411,1cyclictest0-21swapper/223:35:002
3314758991411,1cyclictest0-21swapper/223:11:052
3314758991411,1cyclictest0-21swapper/223:11:052
3314758991411,1cyclictest0-21swapper/221:25:492
3314758991411,1cyclictest0-21swapper/220:39:502
3314758991411,1cyclictest0-21swapper/220:05:092
3314758991410,2cyclictest0-21swapper/223:45:382
3314758991410,2cyclictest0-21swapper/220:40:102
3314757991411,2cyclictest3851703-21mta-sts-daemon00:36:181
3314757991411,2cyclictest3851702-21mta-sts-daemon19:25:011
3314757991411,2cyclictest3660756-21kthreadcore23:15:091
3314757991411,2cyclictest3456855-21irqcore21:00:061
3314757991410,3cyclictest3582636-21systemd-run22:25:011
331475699143,6cyclictest3666859-21true23:20:010
331475699142,2cyclictest3449486-21munin-run20:55:010
3314756991411,2cyclictest3395140-21kthreadcore20:10:090
3314756991410,3cyclictest3755688-21kthreadcore00:15:080
331475699140,1cyclictest0-21swapper/022:29:190
2649091141,3phc2sys0-21swapper/322:56:063
2649091141,3phc2sys0-21swapper/319:50:023
2649091140,2phc2sys0-21swapper/322:29:493
2649091140,2phc2sys0-21swapper/322:22:363
2649091140,2phc2sys0-21swapper/321:17:173
2649091140,1phc2sys0-21swapper/323:56:443
2649091140,1phc2sys0-21swapper/300:16:443
3314758991311,1cyclictest0-21swapper/221:58:152
3314758991311,1cyclictest0-21swapper/220:10:152
3314758991311,1cyclictest0-21swapper/200:35:262
3314758991311,1cyclictest0-21swapper/200:29:172
3314758991310,2cyclictest0-21swapper/223:55:072
3314758991310,2cyclictest0-21swapper/200:15:082
3314758991310,1cyclictest0-21swapper/219:30:062
331475799131,2cyclictest191rcu_preempt21:10:171
3314757991310,2cyclictest3437965-21irqcore20:45:061
3314757991310,2cyclictest3344137-21kthreadcore19:30:061
2649091130,7phc2sys0-21swapper/300:35:013
2649091130,3phc2sys0-21swapper/323:11:353
2649091130,3phc2sys0-21swapper/323:11:353
2649091130,3phc2sys0-21swapper/323:09:253
2649091130,3phc2sys0-21swapper/323:09:253
2649091130,2phc2sys0-21swapper/323:26:293
2649091130,1phc2sys0-21swapper/321:58:353
2649091130,1phc2sys0-21swapper/320:56:503
2649091130,1phc2sys0-21swapper/320:54:503
383433398120,3rtkit-daemon3851704-21mta-sts-daemon19:06:020
383433398120,3rtkit-daemon3851704-21mta-sts-daemon19:06:020
331475899129,2cyclictest0-21swapper/221:00:082
331475899129,2cyclictest0-21swapper/220:20:152
3314758991210,1cyclictest0-21swapper/220:30:092
3314758991210,1cyclictest0-21swapper/220:00:062
3314758991210,1cyclictest0-21swapper/200:00:062
2649091121,4phc2sys0-21swapper/321:10:013
2649091121,3phc2sys0-21swapper/319:45:003
2649091120,3phc2sys0-21swapper/320:21:243
2649091120,2phc2sys0-21swapper/323:54:393
2649091120,2phc2sys0-21swapper/323:47:423
2649091120,2phc2sys0-21swapper/323:25:013
2649091120,2phc2sys0-21swapper/300:10:273
2649091120,1phc2sys0-21swapper/319:17:043
2649091120,1phc2sys0-21swapper/300:35:233
2649091112,2phc2sys0-21swapper/320:35:023
2649091111,2phc2sys0-21swapper/322:30:213
2649091110,1phc2sys0-21swapper/320:16:153
2649091110,1phc2sys0-21swapper/319:38:113
331475899101,4cyclictest0-21swapper/219:10:002
331475899101,4cyclictest0-21swapper/219:10:002
2649091102,2phc2sys0-21swapper/321:40:073
2649091101,4phc2sys0-21swapper/319:30:123
2649091101,2phc2sys0-21swapper/321:25:083
2649091100,3phc2sys0-21swapper/321:45:033
2649091100,2phc2sys0-21swapper/321:50:093
2649091100,2phc2sys0-21swapper/321:10:133
2649091100,2phc2sys0-21swapper/320:40:123
2649091100,2phc2sys0-21swapper/320:09:113
2649091100,2phc2sys0-21swapper/319:51:583
2649091100,2phc2sys0-21swapper/319:51:583
2649091100,2phc2sys0-21swapper/319:20:113
2649091100,2phc2sys0-21swapper/300:05:053
264909191,2phc2sys0-21swapper/322:50:103
264909191,2phc2sys0-21swapper/321:30:093
264909191,2phc2sys0-21swapper/319:05:053
264909191,2phc2sys0-21swapper/319:05:053
264909190,2phc2sys0-21swapper/322:40:153
264909190,2phc2sys0-21swapper/321:20:153
264909190,2phc2sys0-21swapper/321:00:073
264909190,2phc2sys0-21swapper/320:30:093
264909190,2phc2sys0-21swapper/320:30:013
264909190,2phc2sys0-21swapper/320:30:013
264909190,2phc2sys0-21swapper/319:55:033
264909190,2phc2sys0-21swapper/300:00:083
264909180,2phc2sys0-21swapper/319:10:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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