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2026-06-22 - 13:06
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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 Mon Jun 22, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
379102921090,2sleep20-21swapper/221:45:122
3585687992421,2cyclictest3717679-21gdbus20:55:010
358568999237,11cyclictest39048782sleep223:05:052
3585688992317,2cyclictest67250irq/126-eno121:40:121
3585687992320,2cyclictest3592326-21munin-run19:15:020
3585688992219,2cyclictest3897452-21systemd23:00:021
3585687992220,1cyclictest4000412-21latency_hist00:10:010
3585689992118,1cyclictest0-21swapper/200:10:012
3585688992118,2cyclictest3985522-21cmp00:00:001
3585688992118,2cyclictest3717850-21systemd20:55:021
3585688992118,2cyclictest0-21swapper/100:40:011
3585688992117,2cyclictest0-21swapper/100:15:021
3585688992114,6cyclictest3947053-21uptime23:30:191
3585688992114,3cyclictest3960760-21kthreadcore23:40:141
3585688992113,3cyclictest0-21swapper/123:28:481
3585687992118,2cyclictest3779681-21sendmail21:40:010
3585687992116,3cyclictest274-21systemd-journal21:24:560
3585687992114,6cyclictest3935197-21irqcore23:25:100
3585687992111,5cyclictest0-21swapper/022:55:070
3153791210,3phc2sys0-21swapper/322:55:053
3585688992017,2cyclictest698-21in:imuxsock00:05:011
3585688992017,2cyclictest4022425-21ls00:25:011
3585688992017,2cyclictest3846489-21cpuspeed_turbos22:25:061
3585688992017,2cyclictest3705176-21basename20:45:001
3585688992014,5cyclictest3978172-21idleruntime-cro23:55:001
3585688992013,3cyclictest3956020-21munin-run23:40:021
3585687992017,2cyclictest3926596-21munin-run23:20:010
3585687992017,2cyclictest3585685-21cyclictest19:40:050
3585687992012,7cyclictest0-21swapper/023:45:000
3585687992012,7cyclictest0-21swapper/021:20:010
358568799200,2cyclictest3671902-21tr20:15:120
3153791200,2phc2sys0-21swapper/300:24:143
3585689991917,1cyclictest0-21swapper/222:55:012
3585689991916,1cyclictest0-21swapper/223:45:002
358568899199,3cyclictest0-21swapper/121:20:071
3585688991916,2cyclictest660-21dbus-daemon23:25:001
3585688991916,2cyclictest3824059-21/usr/sbin/munin22:10:011
3585688991916,2cyclictest3637427-21apt-config19:50:011
3585688991916,2cyclictest1-21systemd22:20:011
358568799199,5cyclictest0-21swapper/021:40:180
358568799199,5cyclictest0-21swapper/000:20:170
3585687991917,1cyclictest3875168-21cron22:45:010
3585687991916,2cyclictest3743294-21wc21:15:020
3585687991915,2cyclictest0-21swapper/022:05:010
3585687991912,4cyclictest3839501-21fschecks_time22:20:080
3585687991912,1cyclictest3765367-21ssh21:30:040
358568799190,11cyclictest3946432-21ssh23:30:150
3153791192,2phc2sys0-21swapper/321:49:353
3585689991816,1cyclictest0-21swapper/219:45:012
3585689991816,1cyclictest0-21swapper/219:15:012
3585689991815,1cyclictest0-21swapper/222:45:012
3585689991815,1cyclictest0-21swapper/222:25:002
3585689991815,1cyclictest0-21swapper/221:40:012
3585689991814,2cyclictest0-21swapper/219:50:182
3585688991815,2cyclictest0-21swapper/120:15:021
3585688991814,2cyclictest0-21swapper/119:40:021
3585688991811,3cyclictest4022730-21/usr/sbin/munin00:25:111
358568799189,5cyclictest0-21swapper/022:15:020
358568799188,6cyclictest0-21swapper/023:05:020
358568799188,5cyclictest0-21swapper/023:20:150
3585687991815,2cyclictest3624996-21apt-key19:40:010
3585687991815,2cyclictest1246-21mta-sts-daemon23:15:030
3585687991811,6cyclictest0-21swapper/021:50:130
3153791180,2phc2sys0-21swapper/322:10:073
3585689991715,1cyclictest0-21swapper/223:45:082
3585689991715,1cyclictest0-21swapper/223:05:012
3585689991715,1cyclictest0-21swapper/222:55:132
3585689991715,1cyclictest0-21swapper/200:05:012
3585689991714,1cyclictest0-21swapper/222:00:002
3585689991714,1cyclictest0-21swapper/220:55:012
3585689991714,1cyclictest0-21swapper/219:20:102
3585689991714,1cyclictest0-21swapper/200:15:142
3585689991714,1cyclictest0-21swapper/200:10:122
358568999170,14cyclictest3860683-21chrt22:35:022
358568899178,4cyclictest0-21swapper/123:50:001
3585688991714,2cyclictest693-21systemd-logind00:20:011
3585688991714,2cyclictest3878373-21sed22:45:121
3585688991714,2cyclictest3750413-21idleruntime-cro21:20:011
3585688991714,2cyclictest3711504-21cut20:50:021
3585688991714,2cyclictest1-21systemd22:15:001
3585688991714,2cyclictest0-21swapper/122:55:011
358568799179,4cyclictest1020-21runrttasks22:09:110
358568799178,4cyclictest675-21mta-sts-daemon22:54:420
3585687991715,1cyclictest3882681-21/usr/sbin/munin22:50:020
3585687991714,2cyclictest4025755-21kthreadcore00:25:140
3585687991712,4cyclictest3983707-21/usr/sbin/munin23:55:180
3153791170,2phc2sys0-21swapper/300:03:343
358568999161,7cyclictest0-21swapper/220:00:042
3585689991614,1cyclictest0-21swapper/223:25:022
3585689991614,1cyclictest0-21swapper/200:40:032
3585689991613,2cyclictest0-21swapper/223:29:552
3585689991613,2cyclictest0-21swapper/220:05:082
3585689991613,2cyclictest0-21swapper/219:35:062
3585689991613,1cyclictest0-21swapper/223:55:152
3585689991613,1cyclictest0-21swapper/222:17:332
3585689991613,1cyclictest0-21swapper/221:31:422
3585689991613,1cyclictest0-21swapper/221:15:122
3585689991613,1cyclictest0-21swapper/220:40:142
3585689991613,1cyclictest0-21swapper/200:25:062
358568999160,3cyclictest38144842sleep222:00:162
358568899168,3cyclictest0-21swapper/121:15:021
3585688991613,2cyclictest3993940-21grep00:05:101
3585688991613,2cyclictest3905227-21tr23:05:071
3585688991613,2cyclictest3904556-21idleruntime-cro23:05:011
3585688991613,2cyclictest3718861-21irqcore20:55:101
3585688991613,2cyclictest3643788-21systemd-run19:55:011
3585688991613,2cyclictest3585685-21cyclictest21:35:071
3585688991613,2cyclictest1237-21mta-sts-daemon22:21:221
3585688991613,2cyclictest1237-21mta-sts-daemon19:55:191
3585688991612,3cyclictest3705268-21kworker/u16:1+nfsiod21:30:581
3585688991612,2cyclictest0-21swapper/100:35:031
3585688991610,5cyclictest1246-21mta-sts-daemon20:05:101
358568799169,6cyclictest0-21swapper/021:55:090
358568799168,0cyclictest3787548-21ssh21:45:040
358568799167,5cyclictest0-21swapper/000:18:570
358568799163,7cyclictest3687389-21aten2.4-expect20:30:080
3585687991613,2cyclictest698-21in:imuxsock22:20:020
3585687991613,2cyclictest3955905-21systemd23:40:010
3585687991613,2cyclictest3705237-21latency_hist20:45:010
3585687991613,2cyclictest3606487-21cron19:25:010
3585687991613,2cyclictest3592005-21munin-node22:30:490
3585687991613,2cyclictest3585685-21cyclictest23:08:090
3585687991612,3cyclictest4000392-21kworker/u16:2+nfsiod00:10:430
3585687991611,4cyclictest1246-21mta-sts-daemon19:30:040
3585687991610,5cyclictest3761989-21kthreadcore21:25:130
358568799160,6cyclictest4037367-21apt-get00:35:040
3153791161,4phc2sys0-21swapper/320:55:053
3153791160,4phc2sys0-21swapper/319:05:053
3153791160,2phc2sys0-21swapper/321:37:243
3153791160,2phc2sys0-21swapper/321:23:013
3153791160,1phc2sys0-21swapper/323:12:203
358568999152,7cyclictest0-21swapper/223:50:052
3585689991513,1cyclictest0-21swapper/223:20:032
3585689991513,1cyclictest0-21swapper/219:15:112
3585689991512,1cyclictest0-21swapper/223:39:112
3585689991512,1cyclictest0-21swapper/223:10:172
3585689991512,1cyclictest0-21swapper/222:10:122
3585689991512,1cyclictest0-21swapper/222:05:082
3585689991512,1cyclictest0-21swapper/221:25:112
3585689991512,1cyclictest0-21swapper/221:05:132
3585689991512,1cyclictest0-21swapper/219:30:122
3585689991512,1cyclictest0-21swapper/200:20:062
3585689991511,2cyclictest0-21swapper/220:50:022
358568999151,11cyclictest3687164-21taskset20:30:022
358568899152,8cyclictest3606611-21latency_hist19:25:011
358568899152,4cyclictest1246-21mta-sts-daemon22:43:171
3585688991512,2cyclictest3917317-21mailstats23:10:161
3585688991512,2cyclictest3816677-21latency_hist22:05:011
3585688991512,2cyclictest3802440-21cpu21:55:061
3585688991512,2cyclictest3686125-21systemctl20:25:181
3585688991512,2cyclictest3592005-21munin-node19:32:311
3585688991512,2cyclictest1242-21mta-sts-daemon21:05:011
3585688991512,2cyclictest0-21swapper/123:20:011
3585688991512,2cyclictest0-21swapper/120:05:011
3585688991512,2cyclictest0-21swapper/119:45:011
3585688991511,3cyclictest3762790-21latency21:25:131
358568799159,5cyclictest1246-21mta-sts-daemon23:45:200
358568799159,2cyclictest492398rtkit-daemon21:02:150
3585687991512,2cyclictest3988838-21kthreadcore00:00:160
3585687991512,2cyclictest3668510-21wc20:15:020
3585687991512,2cyclictest3650106-21systemd-run20:00:030
3585687991512,2cyclictest1247-21mta-sts-daemon19:45:190
3585687991512,2cyclictest1246-21mta-sts-daemon00:30:180
3585687991511,3cyclictest3733630-21kthreadcore21:05:140
3585687991511,3cyclictest3608864-21kthreadcore19:25:110
3585687991510,4cyclictest1246-21mta-sts-daemon23:50:110
3153791150,3phc2sys0-21swapper/322:52:033
39544222140,2sleep30-21swapper/323:35:313
358568999147,5cyclictest3723543-21chrt20:58:232
3585689991412,1cyclictest0-21swapper/222:35:032
3585689991412,1cyclictest0-21swapper/222:25:062
3585689991412,1cyclictest0-21swapper/220:40:012
3585689991412,1cyclictest0-21swapper/220:35:022
3585689991412,1cyclictest0-21swapper/220:20:002
3585689991412,1cyclictest0-21swapper/220:15:032
3585689991411,1cyclictest0-21swapper/222:46:392
3585689991411,1cyclictest0-21swapper/221:41:412
3585689991411,1cyclictest0-21swapper/221:13:252
3585689991411,1cyclictest0-21swapper/221:00:122
3585689991411,1cyclictest0-21swapper/220:20:112
3585689991411,1cyclictest0-21swapper/219:45:172
358568999140,11cyclictest3801902-21chrt21:54:582
358568999140,11cyclictest37507332chrt21:20:032
358568899149,2cyclictest1246-21mta-sts-daemon19:15:181
3585688991411,2cyclictest3861050-21cpuspeed22:35:071
3585688991411,2cyclictest3853727-21cpuspeed_turbos22:30:071
3585688991411,2cyclictest3688531-21kthreadcore20:30:131
3585688991411,2cyclictest3677819-21kthreadcore20:20:121
3585688991411,2cyclictest3674683-21apt-key20:20:011
3585688991411,2cyclictest1242-21mta-sts-daemon21:45:181
3585688991410,3cyclictest1242-21mta-sts-daemon21:05:171
358568799147,2cyclictest0-21swapper/022:35:130
358568799146,1cyclictest601rcuop/320:55:120
358568799144,4cyclictest3655855-21sshd20:04:180
358568799141,6cyclictest693-21systemd-logind20:30:000
3585687991411,2cyclictest3849388-21kthreadcore22:25:120
3585687991411,2cyclictest3656225-21/usr/sbin/munin20:05:170
3585687991411,2cyclictest3585685-21cyclictest20:45:100
3585687991410,3cyclictest3595596-21irqcore19:15:110
3153791141,3phc2sys0-21swapper/319:50:063
3153791140,3phc2sys0-21swapper/300:16:573
3153791140,2phc2sys0-21swapper/322:44:053
3153791140,2phc2sys0-21swapper/322:08:353
3585689991310,2cyclictest0-21swapper/219:25:092
3585689991310,2cyclictest0-21swapper/200:31:332
358568999130,10cyclictest3948822-21taskset23:35:022
358568999130,10cyclictest3644050-21chrt19:55:042
3585688991311,1cyclictest1246-21mta-sts-daemon20:35:031
3585688991310,2cyclictest3795051-21aten_repower_fr21:50:071
3585688991310,2cyclictest3585685-21cyclictest19:27:181
3585688991310,2cyclictest3585685-21cyclictest19:10:171
3585687991310,2cyclictest3695530-21kthreadcore20:35:100
3585687991310,2cyclictest3676314-21kthreadcore20:20:110
3585687991310,2cyclictest3638070-21aten_repower_po19:50:070
3153791133,3phc2sys0-21swapper/300:25:183
3153791131,3phc2sys0-21swapper/323:00:063
3153791131,3phc2sys0-21swapper/319:20:113
3153791130,4phc2sys0-21swapper/319:41:413
3153791130,3phc2sys0-21swapper/323:45:333
3153791130,2phc2sys0-21swapper/323:44:563
3153791130,2phc2sys0-21swapper/323:30:483
3153791130,2phc2sys0-21swapper/323:16:213
3153791130,2phc2sys0-21swapper/322:34:293
3153791130,2phc2sys0-21swapper/321:40:463
3153791130,2phc2sys0-21swapper/321:19:423
3153791130,2phc2sys0-21swapper/300:37:373
3153791130,1phc2sys0-21swapper/323:53:273
39397792120,3sleep30-21swapper/323:25:303
3153791124,3phc2sys0-21swapper/320:10:123
3153791122,2phc2sys0-21swapper/323:59:253
3153791120,3phc2sys0-21swapper/300:33:073
3153791120,2phc2sys0-21swapper/322:18:333
3153791120,1phc2sys0-21swapper/319:38:123
358568799119,1cyclictest1242-21mta-sts-daemon19:10:010
3153791112,2phc2sys0-21swapper/321:55:163
3153791112,2phc2sys0-21swapper/300:12:403
3153791111,2phc2sys0-21swapper/321:25:553
3153791111,2phc2sys0-21swapper/321:05:193
3153791111,2phc2sys0-21swapper/319:15:033
3153791110,3phc2sys0-21swapper/322:20:043
3153791110,3phc2sys0-21swapper/320:19:083
3153791110,2phc2sys0-21swapper/322:47:273
3153791110,2phc2sys0-21swapper/321:50:483
3153791110,2phc2sys0-21swapper/320:39:143
3153791110,2phc2sys0-21swapper/319:55:193
3153791110,2phc2sys0-21swapper/319:15:113
3153791110,1phc2sys0-21swapper/321:10:483
3153791110,1phc2sys0-21swapper/320:45:253
3153791110,1phc2sys0-21swapper/320:43:433
3153791110,1phc2sys0-21swapper/320:23:523
358568899106,2cyclictest671-21polkitd19:10:021
3153791102,2phc2sys0-21swapper/300:07:193
3153791101,3phc2sys0-21swapper/320:50:123
3153791101,2phc2sys0-21swapper/323:20:143
3153791101,2phc2sys0-21swapper/322:25:103
3153791101,2phc2sys0-21swapper/320:30:093
3153791100,2phc2sys0-21swapper/323:07:193
3153791100,2phc2sys0-21swapper/322:35:373
3153791100,2phc2sys0-21swapper/321:31:043
3153791100,2phc2sys0-21swapper/319:25:043
3153791100,1phc2sys0-21swapper/320:08:413
35856899991,2cyclictest0-21swapper/219:10:012
315379190,4phc2sys0-21swapper/321:00:043
315379190,2phc2sys0-21swapper/322:00:053
315379190,2phc2sys0-21swapper/320:01:483
315379190,2phc2sys0-21swapper/319:48:013
315379190,2phc2sys0-21swapper/319:30:173
315379180,2phc2sys0-21swapper/320:25:083
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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