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2026-05-18 - 06:48
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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 Mon May 18, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37940262960,2sleep30-21swapper/321:10:143
38021022370,2sleep13802059-21ssh21:15:211
3634754992619,3cyclictest3827634-1atopacctd21:10:121
3634755992519,1cyclictest0-21swapper/223:25:012
3634754992520,2cyclictest134050irq/121-eno122:40:111
3634754992519,2cyclictest134050irq/121-eno121:35:011
363475399255,12cyclictest3681779-21apt19:45:050
3634755992219,1cyclictest0-21swapper/200:30:012
3634754992214,3cyclictest0-21swapper/100:25:011
3634755992118,1cyclictest0-21swapper/222:45:002
3634755992118,1cyclictest0-21swapper/222:20:002
3634753992111,6cyclictest0-21swapper/021:45:000
3634753992111,5cyclictest0-21swapper/023:15:050
3634754992017,2cyclictest3949333-21munin-run22:55:011
3634754992017,2cyclictest3896431-21systemd-run22:20:021
3634754992017,2cyclictest3865329-21latency_hist22:00:001
3634754992017,2cyclictest1290-21dbus-daemon00:30:021
3634754992016,3cyclictest3964493-21dump-pmu-power23:05:001
3634754992013,3cyclictest3951968-21kthreadcore22:55:101
3634754992013,3cyclictest3951968-21kthreadcore22:55:101
3634753992018,1cyclictest3857732-21cat21:55:000
3634753992017,2cyclictest1290-21dbus-daemon21:20:010
2649091201,4phc2sys0-21swapper/321:50:043
38273492190,2sleep20-21swapper/221:35:022
3634755991916,1cyclictest0-21swapper/223:55:162
3634755991916,1cyclictest0-21swapper/220:20:002
3634755991916,1cyclictest0-21swapper/220:20:002
3634754991916,2cyclictest3641221-21grep19:15:011
3634754991916,2cyclictest0-21swapper/120:10:001
3634754991912,3cyclictest4003106-21cstates23:30:051
363475399199,6cyclictest0-21swapper/023:58:480
363475399198,6cyclictest0-21swapper/023:30:030
3634753991917,1cyclictest3744552-21apt-get20:35:000
3634753991916,2cyclictest3911533-21systemd-run22:30:010
3634753991911,7cyclictest3895996-21http22:20:000
363475399190,13cyclictest4057898-21cut00:05:100
3634755991816,1cyclictest0-21swapper/223:30:002
3634755991815,1cyclictest0-21swapper/221:55:112
3634755991815,1cyclictest0-21swapper/221:45:002
3634755991815,1cyclictest0-21swapper/221:25:012
3634755991815,1cyclictest0-21swapper/219:15:022
3634754991815,2cyclictest4056322-21sh00:05:011
3634754991815,2cyclictest4026932-21kthreadcore23:45:121
3634754991815,2cyclictest0-21swapper/119:40:001
3634754991814,3cyclictest3851704-21mta-sts-daemon22:20:111
3634754991813,1cyclictest134050irq/121-eno123:10:181
3634754991811,3cyclictest3992993-21timerandwakeup23:20:181
363475399188,5cyclictest0-21swapper/023:00:200
363475399188,5cyclictest0-21swapper/022:20:040
363475399187,6cyclictest0-21swapper/021:10:050
3634753991815,2cyclictest4055981-21apt-config00:05:000
3634753991815,2cyclictest3923198-21kthreadcore22:35:100
3634753991815,2cyclictest3776740-21cpuspeed_turbos21:00:060
3634753991815,2cyclictest3751045-21sh20:40:000
3634753991815,2cyclictest171ktimers/023:27:010
3634753991815,1cyclictest0-21swapper/022:55:010
3634753991814,2cyclictest0-21swapper/022:15:020
3634753991812,5cyclictest4109758-21latency_hist00:40:010
3634753991811,6cyclictest1326-21systemd-logind22:45:010
383433398170,3rtkit-daemon3851698-21mta-sts-daemon23:51:321
3634755991715,1cyclictest0-21swapper/221:50:002
3634755991715,1cyclictest0-21swapper/200:25:022
3634755991714,1cyclictest0-21swapper/223:31:212
3634755991714,1cyclictest0-21swapper/223:05:022
3634755991714,1cyclictest0-21swapper/221:05:082
3634755991714,1cyclictest0-21swapper/200:35:052
3634755991714,1cyclictest0-21swapper/200:15:012
3634755991714,1cyclictest0-21swapper/200:05:032
3634755991712,1cyclictest0-21swapper/222:30:062
363475499178,4cyclictest1996-21runrttasks21:52:081
363475499178,4cyclictest0-21swapper/100:10:191
3634754991714,2cyclictest3926744-21sh22:40:011
3634754991714,2cyclictest3776175-21systemd-run21:00:001
3634754991714,2cyclictest3656051-21apt-key19:25:011
3634754991714,2cyclictest1290-21dbus-daemon23:15:161
363475399179,4cyclictest0-21swapper/021:30:030
3634753991713,2cyclictest3694614-21cpuspeed_turbos19:55:050
3634753991711,4cyclictest1290-21dbus-daemon23:25:010
3634753991711,1cyclictest0-21swapper/020:40:040
3634753991710,4cyclictest3851702-21mta-sts-daemon00:16:440
2649091171,4phc2sys0-21swapper/300:20:033
2649091170,2phc2sys0-21swapper/322:15:543
36351192160,2sleep0241rcuc/019:10:040
3634755991614,1cyclictest0-21swapper/223:35:062
3634755991614,1cyclictest0-21swapper/219:40:012
3634755991614,1cyclictest0-21swapper/219:25:022
3634755991613,2cyclictest0-21swapper/220:30:082
3634755991613,1cyclictest0-21swapper/221:35:092
3634755991613,1cyclictest0-21swapper/220:10:002
3634754991614,1cyclictest3851702-21mta-sts-daemon21:35:081
3634754991613,2cyclictest3912479-21tail22:30:091
3634754991613,2cyclictest3888150-21apt-config22:15:001
3634754991613,2cyclictest3851875-21systemd-journal20:55:001
3634754991613,2cyclictest1290-21dbus-daemon23:30:011
3634754991613,2cyclictest0-21swapper/119:50:011
3634754991612,3cyclictest3895333-21kworker/u16:3+nfsiod22:47:521
3634754991610,2cyclictest0-21swapper/123:41:591
3634753991613,2cyclictest4071701-21latency_hist00:15:020
3634753991613,2cyclictest4014210-21kthreadcore23:35:110
3634753991613,2cyclictest3880722-21gmain20:50:010
3634753991613,2cyclictest3866069-21cstates22:00:060
3634753991613,2cyclictest3827634-1atopacctd19:20:130
3634753991613,2cyclictest0-21swapper/000:25:010
3634753991612,3cyclictest1290-21dbus-daemon00:30:010
3634753991611,2cyclictest3851705-21mta-sts-daemon21:45:220
363475399160,3cyclictest3706580-21ls20:05:000
2649091161,4phc2sys0-21swapper/323:10:053
2649091160,3phc2sys0-21swapper/322:33:203
2649091160,2phc2sys0-21swapper/323:07:313
2649091160,2phc2sys0-21swapper/300:27:233
363475599158,2cyclictest0-21swapper/221:50:062
363475599157,5cyclictest0-21swapper/222:55:032
363475599157,5cyclictest0-21swapper/222:55:032
363475599151,9cyclictest0-21swapper/219:50:002
3634755991512,1cyclictest0-21swapper/223:55:002
3634755991512,1cyclictest0-21swapper/222:45:082
3634755991512,1cyclictest0-21swapper/222:00:072
3634755991512,1cyclictest0-21swapper/221:28:312
3634755991512,1cyclictest0-21swapper/221:15:022
3634755991512,1cyclictest0-21swapper/220:00:012
3634755991512,1cyclictest0-21swapper/219:50:082
3634755991511,2cyclictest0-21swapper/220:45:112
363475599150,13cyclictest0-21swapper/222:20:042
363475499157,3cyclictest0-21swapper/123:35:161
363475499157,2cyclictest191rcu_preempt22:25:031
3634754991512,2cyclictest4099911-21mailstats00:30:171
3634754991512,2cyclictest4099911-21mailstats00:30:171
3634754991512,2cyclictest3966469-21kthreadcore23:05:111
3634754991512,2cyclictest3878147-21grep22:05:131
3634754991512,2cyclictest3851704-21mta-sts-daemon00:36:381
3634754991512,2cyclictest3827634-1atopacctd21:25:131
3634754991512,2cyclictest3787856-21sendmail_mailqu21:05:161
3634754991512,2cyclictest3782545-21systemd-run21:05:011
3634754991512,2cyclictest3668988-21latency_hist19:35:011
3634754991512,2cyclictest0-21swapper/122:05:011
3634754991512,2cyclictest0-21swapper/100:00:021
363475399159,5cyclictest3834328-21sendmail-mta21:34:060
363475399158,6cyclictest0-21swapper/021:35:120
363475399158,4cyclictest3782882-21tail21:05:060
363475399156,7cyclictest4029111-21tr23:45:130
363475399156,7cyclictest3716200-21tr20:10:100
363475399155,5cyclictest3874025-21gltestperf22:05:080
363475399152,4cyclictest3851704-21mta-sts-daemon22:32:550
363475399152,4cyclictest3680697-21mailstats19:40:160
3634753991513,1cyclictest0-21swapper/019:30:010
3634753991512,2cyclictest4094884-21tr00:30:070
3634753991512,2cyclictest4094884-21tr00:30:070
3634753991512,2cyclictest3851875-21systemd-journal19:10:010
3634753991512,2cyclictest3663550-21gltestperf19:30:070
2649091151,3phc2sys0-21swapper/319:30:003
2649091151,2phc2sys0-21swapper/323:17:263
2649091151,2phc2sys0-21swapper/319:20:063
2649091150,4phc2sys0-21swapper/322:45:043
2649091150,2phc2sys0-21swapper/323:57:093
2649091150,2phc2sys0-21swapper/322:38:133
363475599149,3cyclictest0-21swapper/220:50:042
3634755991412,1cyclictest0-21swapper/223:40:102
3634755991412,1cyclictest0-21swapper/223:10:032
3634755991412,1cyclictest0-21swapper/221:20:012
3634755991412,1cyclictest0-21swapper/220:45:012
3634755991411,1cyclictest0-21swapper/222:54:302
3634755991411,1cyclictest0-21swapper/221:00:122
3634755991411,1cyclictest0-21swapper/220:10:102
3634755991411,1cyclictest0-21swapper/219:40:092
3634755991411,1cyclictest0-21swapper/219:30:102
3634755991411,1cyclictest0-21swapper/200:30:082
3634755991411,1cyclictest0-21swapper/200:30:072
363475499148,2cyclictest134050irq/121-eno121:45:121
363475499145,3cyclictest3750747-21sshd20:36:141
3634754991411,2cyclictest3851703-21mta-sts-daemon19:40:101
3634754991411,2cyclictest3851702-21mta-sts-daemon20:46:231
3634754991411,2cyclictest3851702-21mta-sts-daemon00:20:011
3634754991411,2cyclictest3840708-21switchtime21:40:181
3634754991411,2cyclictest3738637-21aten_repower_en20:30:061
3634754991411,2cyclictest3728962-21kthreadcore20:20:131
3634754991411,2cyclictest3723363-21kthreadcore20:15:121
3634754991411,2cyclictest3723363-21kthreadcore20:15:121
3634754991411,2cyclictest3694922-21fschecks_time19:55:071
3634754991411,2cyclictest0-21swapper/119:30:011
3634754991410,3cyclictest4061274-21kthreadcore00:05:121
3634754991410,3cyclictest3716007-21kthreadcore20:10:101
3634754991410,3cyclictest3703983-21kthreadcore20:00:111
3634754991410,3cyclictest3648058-21kthreadcore19:15:141
363475399149,2cyclictest3851704-21mta-sts-daemon22:46:230
363475399148,5cyclictest0-21swapper/023:10:050
363475399147,6cyclictest0-21swapper/021:20:130
363475399145,4cyclictest3769077-21chrt20:50:150
3634753991412,1cyclictest3972323-21latency_hist23:10:020
3634753991412,1cyclictest3851705-21mta-sts-daemon19:50:090
3634753991412,1cyclictest3770415-21cpuspeed_turbos20:55:040
3634753991411,2cyclictest3951659-21kthreadcore22:55:100
3634753991411,2cyclictest3951659-21kthreadcore22:55:100
3634753991411,2cyclictest3720037-21cpuspeed_turbos20:15:070
3634753991411,2cyclictest3720037-21cpuspeed_turbos20:15:060
3634753991411,2cyclictest3707605-21gltestperf20:05:090
3634753991411,2cyclictest3674108-21needreboot19:35:130
3634753991410,3cyclictest4023072-21pmu-power23:40:140
3634753991410,3cyclictest3730236-21kthreadcore20:20:140
2649091141,2phc2sys0-21swapper/323:29:503
2649091140,3phc2sys0-21swapper/321:33:453
2649091140,2phc2sys0-21swapper/322:12:393
2649091140,2phc2sys0-21swapper/322:03:293
2649091140,2phc2sys0-21swapper/300:32:443
2649091140,2phc2sys0-21swapper/300:32:443
2649091140,1phc2sys0-21swapper/321:39:563
37350762130,3sleep03735205-21kthreadcore20:25:120
3634755991311,1cyclictest0-21swapper/223:15:102
3634755991311,1cyclictest0-21swapper/222:35:092
3634755991311,1cyclictest0-21swapper/222:10:052
3634755991311,1cyclictest0-21swapper/220:55:102
3634755991311,1cyclictest0-21swapper/220:01:482
3634755991311,1cyclictest0-21swapper/219:20:012
3634755991310,1cyclictest0-21swapper/223:45:112
3634755991310,1cyclictest0-21swapper/222:30:022
3634755991310,1cyclictest0-21swapper/222:05:102
3634755991310,1cyclictest0-21swapper/220:35:122
3634755991310,1cyclictest0-21swapper/220:20:132
363475599130,6cyclictest0-21swapper/200:20:012
363475499137,5cyclictest3692614-21tr19:50:131
363475499135,2cyclictest0-21swapper/120:40:051
3634754991310,2cyclictest3851702-21mta-sts-daemon21:20:401
3634753991310,2cyclictest4034770-21kthreadcore23:50:120
3634753991310,2cyclictest3643747-21aten_repower_po19:15:070
363475399130,6cyclictest3860324-21kthreadcore21:55:110
2649091131,2phc2sys0-21swapper/321:55:053
2649091131,2phc2sys0-21swapper/321:15:213
2649091130,6phc2sys0-21swapper/321:40:053
2649091130,4phc2sys0-21swapper/300:16:153
2649091130,3phc2sys0-21swapper/320:20:063
2649091130,2phc2sys0-21swapper/322:55:343
2649091130,2phc2sys0-21swapper/322:55:343
2649091130,2phc2sys0-21swapper/322:25:113
383433398120,7rtkit-daemon3851704-21mta-sts-daemon19:05:141
3634755991210,1cyclictest0-21swapper/223:10:092
3634755991210,1cyclictest0-21swapper/219:25:112
363475499123,4cyclictest0-21swapper/120:25:161
2649091128,1phc2sys0-21swapper/320:45:013
2649091123,2phc2sys0-21swapper/322:54:263
2649091121,2phc2sys0-21swapper/322:05:033
2649091120,2phc2sys0-21swapper/323:47:543
2649091120,2phc2sys0-21swapper/323:40:033
2649091120,2phc2sys0-21swapper/323:38:463
2649091120,2phc2sys0-21swapper/323:31:263
2649091120,2phc2sys0-21swapper/322:44:003
2649091120,2phc2sys0-21swapper/321:24:303
2649091120,2phc2sys0-21swapper/320:30:563
2649091120,1phc2sys0-21swapper/321:29:273
363475599119,1cyclictest0-21swapper/200:00:182
363475599110,3cyclictest0-21swapper/220:25:032
2649091114,3phc2sys0-21swapper/319:45:113
2649091112,4phc2sys0-21swapper/320:45:143
2649091111,2phc2sys0-21swapper/323:04:203
2649091111,2phc2sys0-21swapper/321:46:153
2649091111,2phc2sys0-21swapper/300:11:533
2649091110,5phc2sys0-21swapper/300:05:033
2649091110,4phc2sys0-21swapper/300:39:503
2649091110,2phc2sys0-21swapper/321:06:263
2649091110,2phc2sys0-21swapper/320:03:523
2649091110,1phc2sys0-21swapper/321:02:393
363475599101,4cyclictest0-21swapper/219:10:002
2649091101,2phc2sys0-21swapper/320:55:053
2649091101,2phc2sys0-21swapper/320:15:133
2649091101,2phc2sys0-21swapper/320:15:133
2649091100,3phc2sys0-21swapper/319:10:093
2649091100,2phc2sys0-21swapper/323:20:193
2649091100,2phc2sys0-21swapper/322:20:023
2649091100,2phc2sys0-21swapper/320:50:043
2649091100,2phc2sys0-21swapper/320:25:033
2649091100,2phc2sys0-21swapper/319:43:073
2649091100,2phc2sys0-21swapper/300:04:483
2649091100,1phc2sys0-21swapper/319:37:313
264909191,2phc2sys0-21swapper/320:10:093
264909191,2phc2sys0-21swapper/319:58:223
264909190,3phc2sys0-21swapper/319:05:033
264909190,2phc2sys0-21swapper/323:50:493
264909190,2phc2sys0-21swapper/320:35:093
264909190,2phc2sys0-21swapper/320:05:123
264909190,2phc2sys0-21swapper/319:50:053
264909190,2phc2sys0-21swapper/319:30:163
264909180,2phc2sys0-21swapper/319:15:053
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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