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2026-08-21 - 11:19
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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 Fri Aug 21, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
404679622050,2sleep30-21swapper/321:35:033
8611221580,2sleep30-21swapper/300:10:063
971102690,1sleep197109-21ssh00:18:581
967842400,2sleep30-21swapper/300:18:033
41629622380,1sleep20-21swapper/222:50:132
3865703993325,5cyclictest0-21swapper/222:40:012
3865701993122,8cyclictest1-21systemd19:35:021
3865701992920,8cyclictest60641-21cpuspeed_turbos23:55:011
3865698992916,8cyclictest664-21dbus-daemon21:30:120
3865701992819,8cyclictest3865690-21cyclictest23:10:011
3865701992816,2cyclictest0-21swapper/123:15:021
3865701992814,2cyclictest0-21swapper/119:40:011
3865698992815,5cyclictest0-21swapper/022:10:010
3865701992719,7cyclictest0-21swapper/122:35:021
3865701992615,2cyclictest3929864-21cpuspeed_turbos20:05:021
3865701992512,3cyclictest0-21swapper/122:39:561
3865701992418,2cyclictest69250irq/121-eno100:00:021
3865703992321,1cyclictest0-21swapper/223:10:012
3865703992320,1cyclictest0-21swapper/222:00:012
3865701992320,2cyclictest4150492-21cstates22:45:021
3865701992320,2cyclictest3997663-21grep21:00:021
3865701992315,4cyclictest4100529-21kthreadcore22:10:071
3865703992220,1cyclictest0-21swapper/223:30:032
3865698992219,2cyclictest4127973-21ssh22:30:010
3865698992219,2cyclictest4127973-21ssh22:30:010
3865698992219,2cyclictest3942481-21/usr/sbin/munin20:15:020
3865698992219,2cyclictest3930092-21cstates20:05:020
3865698992216,5cyclictest4188120-21ssh23:10:020
3865698992213,5cyclictest55513-21kthreadcore23:50:080
1157598220,3rtkit-daemon1309-21mta-sts-daemon23:48:280
3865701992118,2cyclictest3948420-21df20:20:011
3865701992118,2cyclictest3881413-21/usr/sbin/munin19:25:021
3865701992118,2cyclictest3865690-21cyclictest23:25:021
3865701992118,2cyclictest0-21swapper/120:55:011
3865701992114,3cyclictest1307-21mta-sts-daemon23:03:591
386569899219,7cyclictest0-21swapper/023:34:460
3865698992118,2cyclictest3923692-21cron20:00:010
3865698992118,2cyclictest3923692-21cron20:00:010
3865698992118,2cyclictest38438-21apt-key23:40:010
3865698992110,4cyclictest1306-21mta-sts-daemon23:21:250
3865703992018,1cyclictest0-21swapper/220:45:012
3865703992017,1cyclictest0-21swapper/220:00:012
3865703992017,1cyclictest0-21swapper/220:00:012
3865701992017,2cyclictest9019-21latency_hist23:20:021
3865701992016,2cyclictest0-21swapper/123:00:031
386569899209,6cyclictest0-21swapper/023:15:130
3865698992018,1cyclictest3972949-21/usr/sbin/munin20:40:020
3865698992017,2cyclictest664-21dbus-daemon00:30:020
3865698992017,2cyclictest4143008-21munin-plugin-st22:40:010
3865698992013,4cyclictest3865690-21cyclictest00:07:140
3865698992013,4cyclictest3865690-21cyclictest00:07:140
3865698992013,4cyclictest11574-21rtkit-daemon21:25:430
3865698992012,2cyclictest3917887-21munin-run19:55:010
3865698992010,5cyclictest0-21swapper/022:15:010
1157598200,4rtkit-daemon1307-21mta-sts-daemon19:47:090
1157598200,3rtkit-daemon1306-21mta-sts-daemon19:59:141
1157598200,3rtkit-daemon1306-21mta-sts-daemon19:59:141
1157598200,3rtkit-daemon1300-21mta-sts-daemon20:26:480
40906782190,2sleep30-21swapper/322:05:013
3865703991916,1cyclictest0-21swapper/221:25:012
3865703991916,1cyclictest0-21swapper/200:40:002
3865701991916,2cyclictest688-21in:imuxsock22:51:141
3865701991916,2cyclictest4088215-21grep22:00:101
3865701991916,2cyclictest3942833-21/usr/sbin/munin20:15:031
3865701991916,2cyclictest1300-21mta-sts-daemon21:10:031
3865701991915,2cyclictest83678-21hddtemp_smartct00:10:021
3865701991915,2cyclictest83678-21hddtemp_smartct00:10:021
3865701991912,3cyclictest4064003-21kthreadcore21:45:071
3865701991911,3cyclictest0-21swapper/121:40:141
386570199191,11cyclictest3918286-21cat19:55:031
386569899199,5cyclictest0-21swapper/000:20:140
386569899198,6cyclictest0-21swapper/023:55:080
3865698991916,2cyclictest664-21dbus-daemon00:05:010
3865698991916,2cyclictest4091156-21cstates22:05:020
3865698991916,2cyclictest4024875-21hddtemp_smartct21:20:030
3865698991916,2cyclictest3948260-21cstates20:20:010
3865698991916,2cyclictest0-21swapper/022:35:010
3865698991916,2cyclictest0-21swapper/021:20:100
3865698991915,2cyclictest0-21swapper/022:55:030
3865698991911,5cyclictest4012149-21kthreadcore21:10:070
3865698991911,4cyclictest1300-21mta-sts-daemon23:09:190
3240591190,2phc2sys0-21swapper/323:10:003
3240591190,2phc2sys0-21swapper/321:58:253
3865703991816,1cyclictest0-21swapper/221:10:032
3865703991816,1cyclictest0-21swapper/220:55:022
3865703991816,1cyclictest0-21swapper/220:05:022
3865703991815,2cyclictest0-21swapper/221:15:012
3865703991815,1cyclictest0-21swapper/223:16:042
3865703991815,1cyclictest0-21swapper/220:30:022
3865703991815,1cyclictest0-21swapper/200:35:002
386570399181,12cyclictest0-21swapper/219:30:012
386570199189,4cyclictest0-21swapper/121:05:011
3865701991816,1cyclictest4017331-21latency_hist21:15:031
3865701991815,2cyclictest4158256-21sh22:50:031
3865701991815,2cyclictest4098122-21sh22:10:011
3865701991815,2cyclictest3875604-21if_enp1s019:20:031
3865701991815,2cyclictest1-21systemd21:55:021
3865701991815,2cyclictest0-21swapper/123:35:011
3865701991815,2cyclictest0-21swapper/123:30:011
3865701991810,3cyclictest1309-21mta-sts-daemon23:41:581
386569899189,5cyclictest0-21swapper/022:55:130
3865698991817,1cyclictest0-21swapper/020:58:330
3865698991815,2cyclictest3948752-21gltestperf20:20:030
3865698991815,2cyclictest3894479-21kthreadcore19:35:030
3865698991815,2cyclictest127718-21cstates00:40:010
3865698991815,2cyclictest0-21swapper/020:55:020
3865698991815,2cyclictest0-21swapper/019:30:010
40602462170,1sleep20-21swapper/221:43:082
386570399171,7cyclictest0-21swapper/220:50:012
386570399171,7cyclictest0-21swapper/200:09:432
386570399171,7cyclictest0-21swapper/200:09:432
3865703991715,1cyclictest0-21swapper/223:40:012
3865703991715,1cyclictest0-21swapper/223:35:022
3865703991715,1cyclictest0-21swapper/222:50:032
3865703991715,1cyclictest0-21swapper/221:20:022
3865703991715,1cyclictest0-21swapper/220:40:022
3865703991715,1cyclictest0-21swapper/219:25:022
3865703991714,1cyclictest0-21swapper/219:15:022
3865703991713,2cyclictest0-21swapper/219:35:032
386570399170,7cyclictest0-21swapper/200:19:442
386570199178,4cyclictest0-21swapper/100:35:041
386570199171,5cyclictest3887321-21cat19:30:011
3865701991714,2cyclictest4120183-21cron22:25:011
3865701991714,2cyclictest4054447-21grep21:40:031
3865701991714,2cyclictest3972712-21sh20:40:011
3865701991714,2cyclictest3866470-21cut19:10:041
3865701991714,2cyclictest1306-21mta-sts-daemon00:25:121
3865701991714,2cyclictest0-21swapper/122:20:031
3865701991714,2cyclictest0-21swapper/120:30:011
3865701991713,3cyclictest100943-21kthreadcore00:20:081
386569899176,5cyclictest0-21swapper/023:00:080
3865698991714,2cyclictest87733-21grep00:10:070
3865698991714,2cyclictest759-1atopacctd20:10:020
3865698991714,2cyclictest4157924-21forks22:50:020
3865698991714,2cyclictest4083412-21systemd-run22:00:010
3865698991714,2cyclictest3984799-21/usr/sbin/munin20:50:010
3865698991714,2cyclictest3871576-21sh19:15:020
3865698991714,2cyclictest119891-21awk00:35:000
3865698991714,2cyclictest0-21swapper/021:55:010
3865698991714,2cyclictest0-21swapper/000:20:030
3865698991710,3cyclictest1306-21mta-sts-daemon21:40:370
3240591170,2phc2sys0-21swapper/322:35:003
3865703991614,1cyclictest0-21swapper/222:25:022
3865703991613,1cyclictest0-21swapper/223:45:012
3865703991613,1cyclictest0-21swapper/222:35:022
3865703991613,1cyclictest0-21swapper/222:00:122
3865703991613,1cyclictest0-21swapper/200:00:002
3865701991613,2cyclictest3936214-21/usr/sbin/munin20:10:021
3865701991613,2cyclictest0-21swapper/120:25:001
386569899168,7cyclictest0-21swapper/023:25:050
3865698991614,1cyclictest1307-21mta-sts-daemon21:45:030
3865698991613,2cyclictest664-21dbus-daemon20:35:010
3865698991613,2cyclictest4144058-21kthreadcore22:40:050
3865698991613,2cyclictest1-21systemd21:10:030
3865698991613,2cyclictest1-21systemd19:10:010
3865698991612,3cyclictest3778711-21kworker/u16:0+nfsiod21:37:520
3865698991611,4cyclictest11574-21rtkit-daemon19:41:320
386569899160,1cyclictest43339-21ssh23:40:100
3240591169,1phc2sys0-21swapper/321:46:343
3240591161,4phc2sys0-21swapper/300:09:433
3240591161,4phc2sys0-21swapper/300:09:433
3240591161,3phc2sys0-21swapper/322:15:563
3240591160,3phc2sys0-21swapper/322:21:003
3240591160,2phc2sys0-21swapper/323:45:073
3240591160,1phc2sys0-21swapper/323:33:523
3865703991513,1cyclictest0-21swapper/222:30:012
3865703991513,1cyclictest0-21swapper/222:30:012
3865703991513,1cyclictest0-21swapper/222:20:032
3865703991513,1cyclictest0-21swapper/222:10:022
3865703991513,1cyclictest0-21swapper/220:35:012
3865703991513,1cyclictest0-21swapper/219:45:012
3865703991513,1cyclictest0-21swapper/200:20:062
3865703991512,1cyclictest0-21swapper/221:50:142
3865703991512,1cyclictest0-21swapper/220:21:402
3865703991512,1cyclictest0-21swapper/220:20:002
3865703991512,1cyclictest0-21swapper/219:55:012
3865703991511,2cyclictest0-21swapper/223:45:072
3865701991512,2cyclictest90795-21cstates00:15:031
3865701991512,2cyclictest47058-21kthreadcore23:45:071
3865701991512,2cyclictest4080829-21ssh21:55:091
3865701991512,2cyclictest4029049-21pmu-power21:20:091
3865701991512,2cyclictest38162-21sh23:40:011
3865701991511,3cyclictest4009790-21kworker/u16:3+nfsiod21:28:031
3865701991511,2cyclictest3961059-21if_enp1s020:30:041
3865698991512,2cyclictest4106352-21if_enp1s0.822:15:030
3865698991512,2cyclictest1307-21mta-sts-daemon19:36:010
3240591153,3phc2sys0-21swapper/300:34:443
3240591151,4phc2sys0-21swapper/320:49:443
3240591150,4phc2sys0-21swapper/323:27:183
3240591150,2phc2sys0-21swapper/322:44:533
3240591150,1phc2sys0-21swapper/323:56:253
3240591150,1phc2sys0-21swapper/322:12:433
3240591150,1phc2sys0-21swapper/321:16:043
3865703991412,1cyclictest0-21swapper/222:59:512
3865703991412,1cyclictest0-21swapper/221:45:102
3865703991412,1cyclictest0-21swapper/221:35:072
3865703991412,1cyclictest0-21swapper/221:35:032
3865703991412,1cyclictest0-21swapper/220:58:382
3865703991411,1cyclictest0-21swapper/223:54:412
3865703991411,1cyclictest0-21swapper/223:10:062
3865703991411,1cyclictest0-21swapper/223:03:282
3865703991411,1cyclictest0-21swapper/220:10:062
3865703991411,1cyclictest0-21swapper/219:30:372
3865703991411,1cyclictest0-21swapper/200:29:022
386570199141,5cyclictest3905613-21munin-run19:45:011
3865701991411,2cyclictest73095-21cut00:00:091
3865701991411,2cyclictest4128076-21systemd22:30:021
3865701991411,2cyclictest4128076-21systemd22:30:021
3865701991411,2cyclictest4024006-21aten_repower_vo21:19:561
3865701991411,2cyclictest3979867-21kthreadcore20:45:061
3865701991411,2cyclictest1309-21mta-sts-daemon19:45:101
3865701991411,2cyclictest1309-21mta-sts-daemon00:30:051
3865701991411,2cyclictest0-21swapper/121:35:031
386569899149,4cyclictest3871450-21munin-node21:04:530
386569899144,5cyclictest3972076-21/usr/sbin/munin20:40:050
3865698991411,2cyclictest4115807-21kthreadcore22:20:080
3240591140,2phc2sys0-21swapper/319:35:093
386570399134,5cyclictest0-21swapper/221:04:442
3865703991311,1cyclictest0-21swapper/222:45:012
3865703991311,1cyclictest0-21swapper/221:25:032
3865703991310,2cyclictest0-21swapper/223:21:152
3865703991310,1cyclictest0-21swapper/200:13:222
3865703991310,1cyclictest0-21swapper/200:00:072
3865701991310,2cyclictest3977163-21missed_timers20:40:081
386569899134,5cyclictest0-21swapper/019:15:250
3865698991310,2cyclictest3877683-21kthreadcore19:20:060
3240591132,2phc2sys0-21swapper/322:53:313
3240591130,3phc2sys0-21swapper/319:34:413
3240591130,2phc2sys0-21swapper/321:50:273
3240591130,2phc2sys0-21swapper/300:03:183
3865703991210,1cyclictest0-21swapper/222:10:082
3865703991210,1cyclictest0-21swapper/220:07:312
386570199129,2cyclictest0-21swapper/119:10:021
3240591125,2phc2sys0-21swapper/300:30:023
3240591123,1phc2sys0-21swapper/300:39:133
3240591121,2phc2sys0-21swapper/320:15:043
3240591120,3phc2sys0-21swapper/322:29:433
3240591120,3phc2sys0-21swapper/322:29:433
3240591120,3phc2sys0-21swapper/321:40:013
3240591120,2phc2sys0-21swapper/322:49:433
3240591120,2phc2sys0-21swapper/321:14:083
3240591120,2phc2sys0-21swapper/319:22:033
3240591120,1phc2sys0-21swapper/323:11:443
386570399119,1cyclictest0-21swapper/219:45:032
386570399119,1cyclictest0-21swapper/219:18:052
3240591116,2phc2sys0-21swapper/322:08:093
3240591112,2phc2sys0-21swapper/319:30:003
3240591111,2phc2sys0-21swapper/321:21:133
3240591110,2phc2sys0-21swapper/322:57:043
3240591110,2phc2sys0-21swapper/319:16:173
3240591110,1phc2sys0-21swapper/320:33:453
3240591110,1phc2sys0-21swapper/320:29:363
3240591110,1phc2sys0-21swapper/319:05:323
40594952100,2sleep30-21swapper/321:40:533
386570399108,1cyclictest0-21swapper/219:10:022
3240591102,2phc2sys0-21swapper/323:52:563
3240591101,2phc2sys0-21swapper/320:15:003
3240591101,2phc2sys0-21swapper/319:55:053
3240591101,2phc2sys0-21swapper/319:55:053
3240591100,3phc2sys0-21swapper/320:20:063
3240591100,2phc2sys0-21swapper/323:41:143
3240591100,2phc2sys0-21swapper/323:35:093
3240591100,2phc2sys0-21swapper/323:21:583
3240591100,2phc2sys0-21swapper/323:15:213
3240591100,2phc2sys0-21swapper/322:35:563
3240591100,2phc2sys0-21swapper/321:26:463
3240591100,1phc2sys0-21swapper/320:35:213
3240591100,1phc2sys0-21swapper/300:20:413
324059195,1phc2sys0-21swapper/320:40:123
324059192,1phc2sys0-21swapper/320:55:043
324059191,2phc2sys0-21swapper/319:40:063
324059190,2phc2sys0-21swapper/323:00:093
324059190,2phc2sys0-21swapper/321:09:153
324059190,2phc2sys0-21swapper/321:00:093
324059190,2phc2sys0-21swapper/320:50:083
324059190,2phc2sys0-21swapper/320:05:073
324059190,2phc2sys0-21swapper/320:00:063
324059190,2phc2sys0-21swapper/319:45:113
324059190,2phc2sys0-21swapper/319:10:053
324059180,2phc2sys0-21swapper/319:50:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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