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2026-01-11 - 14:19
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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 the highest latencies:
System rackeslot2.osadl.org (updated Sun Jan 11, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8584912720,2sleep10-21swapper/121:33:071
6960902390,0sleep1696093-21cut19:33:051
8362472340,2sleep00-21swapper/021:22:080
667986992623,2cyclictest1159950-21munin-run00:20:000
667986992615,10cyclictest1056625-21kthreadcore23:23:070
667986992512,8cyclictest1081392-21cut23:38:010
667986992414,5cyclictest1045140-21cstates23:18:010
667986992411,8cyclictest993683-21kthreadcore22:48:060
667986992314,5cyclictest1146345-21kthreadcore00:13:050
667986992310,8cyclictest874317-21kthreadcore21:43:050
667986992310,5cyclictest882125-21aten2.4-expect21:48:000
11365602230,2sleep20-21swapper/200:08:062
11365602230,2sleep20-21swapper/200:08:062
66798699229,8cyclictest1138152-21kthreadcore00:08:070
66798699229,8cyclictest1138152-21kthreadcore00:08:070
667986992212,5cyclictest954005-21/usr/sbin/munin22:28:020
667986992210,7cyclictest1105492-21perf23:50:000
66798699217,4cyclictest0-21swapper/023:53:080
667986992118,2cyclictest773630-21apt-key20:35:000
667986992113,4cyclictest931333-21kthreadcore22:13:080
667986992112,5cyclictest0-21swapper/023:15:010
66798699210,16cyclictest0-21swapper/000:33:430
667988992014,2cyclictest1086718-21runrttasks23:38:521
667988992012,3cyclictest0-21swapper/122:30:011
66798699208,7cyclictest0-21swapper/021:18:050
66798699206,4cyclictest0-21swapper/023:08:060
667986992016,2cyclictest1286-21avahi-daemon22:45:010
66798699200,6cyclictest1051628-21kworker/u16:3+rpciod23:59:150
66798699200,6cyclictest0-21swapper/023:40:500
2649091202,2phc2sys0-21swapper/300:24:243
2649091200,2phc2sys0-21swapper/322:10:223
66798899198,3cyclictest134050irq/121-eno100:10:021
66798899198,3cyclictest134050irq/121-eno100:10:021
667988991917,1cyclictest0-21swapper/122:20:001
667988991916,2cyclictest816406-21/usr/sbin/munin21:10:011
667988991916,2cyclictest1051431-21cron23:20:011
667988991912,3cyclictest887089-21/usr/sbin/munin21:48:111
66798699199,5cyclictest0-21swapper/023:33:120
66798699197,7cyclictest0-21swapper/019:30:010
66798699196,8cyclictest0-21swapper/021:28:070
66798699194,5cyclictest1329-21rs:main0
66798699193,6cyclictest0-21swapper/000:24:550
667986991916,2cyclictest816346-21gpgconf21:10:010
667986991913,5cyclictest1127228-21irqrtprio00:03:040
667986991910,5cyclictest1065947-21kthreadcore23:28:050
66798699190,9cyclictest889231-21ssh21:50:240
66798699190,5cyclictest973389-21sed22:38:110
66798699190,5cyclictest963152-21ssh22:32:530
2649091191,2phc2sys0-21swapper/323:59:503
7179672180,2sleep30-21swapper/319:48:093
7179672180,2sleep30-21swapper/319:48:093
667990991816,1cyclictest0-21swapper/222:20:022
667990991816,1cyclictest0-21swapper/200:20:012
667988991815,2cyclictest1105747-21cut23:50:021
667988991812,2cyclictest134050irq/121-eno122:48:051
667988991811,3cyclictest980065-21runrttasks22:41:081
66798699189,5cyclictest1329-21rs:main0
66798699187,6cyclictest0-21swapper/022:08:000
66798699186,7cyclictest0-21swapper/019:53:110
66798699184,8cyclictest688595-21date19:25:010
66798699183,9cyclictest786596-21sh20:47:590
667986991815,2cyclictest682464-21latency_hist19:20:000
667986991814,3cyclictest810183-21latency_hist21:05:010
66798699180,9cyclictest862392-21ssh21:35:400
66798699180,9cyclictest860454-21ssh21:33:170
66798699180,8cyclictest1023306-21ssh23:03:550
66798699180,5cyclictest1014195-21ssh22:58:480
66798699180,12cyclictest914869-21ssh22:03:430
2649091180,2phc2sys0-21swapper/323:16:593
2649091180,2phc2sys0-21swapper/322:40:033
2649091180,2phc2sys0-21swapper/321:28:583
2649091180,1phc2sys0-21swapper/323:03:563
2649091180,1phc2sys0-21swapper/300:36:103
667990991714,1cyclictest0-21swapper/223:38:032
667990991714,1cyclictest0-21swapper/223:35:002
667990991714,1cyclictest0-21swapper/200:00:012
667990991713,2cyclictest0-21swapper/222:28:132
667990991712,3cyclictest0-21swapper/200:03:042
66799099171,11cyclictest0-21swapper/221:40:022
66798899175,8cyclictest1025136-21kworker/u16:1+nfsiod00:11:151
66798899171,8cyclictest834401-21kworker/u16:2+nfsiod22:58:341
667988991716,1cyclictest0-21swapper/120:48:191
667988991714,2cyclictest951725-21idleruntime-cro22:25:001
667988991714,2cyclictest799105-21fschecks_count20:58:011
667988991714,2cyclictest29021-21rtkit-daemon00:03:211
667988991714,2cyclictest1326-21systemd-logind23:45:011
667988991714,2cyclictest1-21systemd23:05:011
667988991713,3cyclictest1182559-21kthreadcore00:33:051
667988991713,3cyclictest1037063-21kthreadcore23:13:051
667988991713,3cyclictest1002139-21kthreadcore22:53:071
667988991710,3cyclictest755658-21kworker/u16:3-xprtiod21:41:101
66798699174,5cyclictest909576-21kworker/u16:3+nfsiod22:15:100
667986991714,2cyclictest674299-21latency_hist19:15:010
667986991712,4cyclictest794005-21kthreadcore20:53:050
66798699170,7cyclictest943213-21ssh22:20:140
66798699170,7cyclictest798480-21runrttasks20:57:200
66798699170,7cyclictest754634-21cat20:18:090
66798699170,7cyclictest707278-21sh19:43:000
66798699170,7cyclictest700265-21cat19:33:120
66798699170,12cyclictest898069-21ssh21:55:080
66798699170,12cyclictest780848-21cstates20:43:010
66798699170,12cyclictest756351-21cstates20:23:010
66798699170,12cyclictest744287-21expr20:13:030
66798699170,12cyclictest741531-21grep20:08:070
66798699170,12cyclictest736525-21plymouth20:03:120
66798699170,12cyclictest725531-21cat19:57:590
66798699170,12cyclictest701529-21expr19:38:000
66798699170,12cyclictest1194155-21cat00:38:080
66798699170,12cyclictest0-21swapper/000:26:040
2649091178,2phc2sys0-21swapper/319:18:093
2649091171,2phc2sys0-21swapper/300:13:413
2649091170,2phc2sys0-21swapper/322:31:303
2649091170,2phc2sys0-21swapper/319:33:033
66799099161,9cyclictest0-21swapper/223:00:022
66799099161,7cyclictest0-21swapper/223:10:022
667990991614,1cyclictest0-21swapper/223:15:022
667990991613,1cyclictest0-21swapper/223:45:012
667990991613,1cyclictest0-21swapper/222:55:002
667990991613,1cyclictest0-21swapper/220:20:022
667990991613,1cyclictest0-21swapper/219:55:022
667990991613,1cyclictest0-21swapper/219:15:012
667990991613,1cyclictest0-21swapper/200:12:592
667990991612,2cyclictest675242-21taskset19:15:022
667990991612,2cyclictest0-21swapper/200:23:102
66798899166,5cyclictest0-21swapper/123:25:001
667988991613,2cyclictest979035-21systemd-run22:40:001
667988991613,2cyclictest862497-21rm21:35:501
667988991613,2cyclictest818704-21tail21:12:591
667988991613,2cyclictest719207-21/usr/sbin/munin19:53:101
667988991613,2cyclictest690367-21kthreadcore19:28:061
667988991613,2cyclictest667984-21cyclictest00:25:001
667988991613,2cyclictest1160202-21systemd-run00:20:011
667988991612,3cyclictest892277-21kthreadcore21:53:061
66798699161,5cyclictest764017-21cut20:28:060
66798699160,11cyclictest774226-21sshd20:36:070
66798699160,11cyclictest713398-21grep19:48:000
66798699160,11cyclictest713398-21grep19:48:000
2649091167,2phc2sys0-21swapper/300:09:333
2649091167,2phc2sys0-21swapper/300:09:333
2649091160,2phc2sys0-21swapper/322:35:533
2649091160,2phc2sys0-21swapper/322:07:123
2649091160,2phc2sys0-21swapper/300:26:403
667990991513,1cyclictest0-21swapper/223:05:012
667990991513,1cyclictest0-21swapper/220:25:012
667990991512,1cyclictest0-21swapper/223:26:442
667990991512,1cyclictest0-21swapper/221:43:092
667990991512,1cyclictest0-21swapper/221:35:012
667990991512,1cyclictest0-21swapper/221:12:282
667990991512,1cyclictest0-21swapper/220:48:032
667990991512,1cyclictest0-21swapper/220:38:062
667990991512,1cyclictest0-21swapper/219:43:002
667990991512,1cyclictest0-21swapper/219:37:592
667990991511,2cyclictest0-21swapper/223:53:062
667990991511,2cyclictest0-21swapper/221:53:032
667990991511,2cyclictest0-21swapper/219:58:022
66799099151,10cyclictest0-21swapper/222:00:022
66798899159,2cyclictest792636-21aten2.4-expect20:53:001
66798899159,2cyclictest134050irq/121-eno123:33:061
66798899159,2cyclictest134050irq/121-eno100:00:021
66798899157,4cyclictest927603-21fschecks_count22:13:021
66798899156,3cyclictest501rcuop/222:02:591
66798899156,3cyclictest0-21swapper/100:38:071
667988991513,1cyclictest667984-21cyclictest21:18:091
667988991512,2cyclictest843636-21perf21:25:001
667988991512,2cyclictest731030-21sendmail20:00:001
667988991512,2cyclictest0-21swapper/119:15:011
667988991511,3cyclictest919350-21kthreadcore22:08:051
667988991511,3cyclictest850319-21kthreadcore21:28:081
667988991511,3cyclictest745222-21kthreadcore20:13:081
667988991510,3cyclictest0-21swapper/119:50:011
667988991510,3cyclictest0-21swapper/119:50:011
66798899150,3cyclictest0-21swapper/121:56:501
2649091150,2phc2sys0-21swapper/300:01:553
2649091150,1phc2sys0-21swapper/323:28:453
66799099141,8cyclictest0-21swapper/220:10:022
667990991412,1cyclictest0-21swapper/222:46:412
667990991412,1cyclictest0-21swapper/219:23:062
667990991411,2cyclictest0-21swapper/222:23:032
667990991411,1cyclictest0-21swapper/223:45:042
667990991411,1cyclictest0-21swapper/223:23:032
667990991411,1cyclictest0-21swapper/222:33:042
667990991411,1cyclictest0-21swapper/222:13:072
667990991411,1cyclictest0-21swapper/221:25:162
667990991411,1cyclictest0-21swapper/221:10:022
667990991411,1cyclictest0-21swapper/221:03:032
667990991411,1cyclictest0-21swapper/220:42:592
667990991411,1cyclictest0-21swapper/219:10:012
667990991410,2cyclictest0-21swapper/223:18:072
66798899142,6cyclictest1025846-21ssh23:06:501
667988991411,2cyclictest805883-21kthreadcore21:03:071
667988991411,2cyclictest743366-21sh20:10:011
667988991411,2cyclictest709944-21kthreadcore19:43:071
667988991411,2cyclictest677072-21aten2.4-expect19:17:581
667988991411,2cyclictest667992-21apt-key19:10:011
667988991411,2cyclictest1326-21systemd-logind19:40:011
667988991411,2cyclictest1290-21dbus-daemon20:30:001
667988991411,2cyclictest1-21systemd20:22:081
667988991411,2cyclictest1107760-21/usr/sbin/munin23:53:001
667988991410,3cyclictest683349-21cpuspeed_turbos19:22:591
667988991410,2cyclictest0-21swapper/120:45:011
2649091140,2phc2sys0-21swapper/323:22:533
2649091140,2phc2sys0-21swapper/321:54:193
2649091140,2phc2sys0-21swapper/321:49:283
2649091140,1phc2sys0-21swapper/323:11:343
9718022130,2sleep20-21swapper/222:37:212
667990991311,1cyclictest0-21swapper/222:03:072
667990991311,1cyclictest0-21swapper/221:50:022
667990991311,1cyclictest0-21swapper/219:28:022
667990991311,1cyclictest0-21swapper/200:28:082
667990991310,1cyclictest0-21swapper/222:43:062
667990991310,1cyclictest0-21swapper/221:23:072
667990991310,1cyclictest0-21swapper/221:18:042
667990991310,1cyclictest0-21swapper/220:58:092
667990991310,1cyclictest0-21swapper/220:53:032
667990991310,1cyclictest0-21swapper/220:32:592
667990991310,1cyclictest0-21swapper/220:03:062
667990991310,1cyclictest0-21swapper/200:38:062
66798899136,2cyclictest134050irq/121-eno122:33:521
667988991311,1cyclictest0-21swapper/120:35:011
667988991310,2cyclictest774437-21aten_repower_en20:37:591
667988991310,2cyclictest732256-21head20:03:041
667988991310,2cyclictest1062989-21cpuspeed23:27:591
66798699131,7cyclictest668238-21cat19:10:010
2649091130,4phc2sys0-21swapper/300:18:363
2649091130,3phc2sys0-21swapper/319:07:593
2649091130,2phc2sys0-21swapper/323:45:493
2649091130,2phc2sys0-21swapper/322:22:533
2649091130,2phc2sys0-21swapper/300:34:463
66799099129,1cyclictest0-21swapper/222:05:162
66799099129,1cyclictest0-21swapper/220:13:092
66799099129,1cyclictest0-21swapper/200:33:092
667990991210,1cyclictest0-21swapper/220:28:072
667990991210,1cyclictest0-21swapper/219:33:012
66798899129,2cyclictest751233-21irqrtprio20:18:061
66798899124,2cyclictest134050irq/121-eno100:28:011
2649091125,1phc2sys0-21swapper/321:16:273
2649091122,2phc2sys0-21swapper/321:25:013
2649091121,3phc2sys0-21swapper/323:53:063
2649091120,2phc2sys0-21swapper/322:25:063
2649091120,1phc2sys0-21swapper/321:34:273
66799099119,1cyclictest0-21swapper/219:48:042
66799099119,1cyclictest0-21swapper/219:48:042
2649091111,4phc2sys0-21swapper/320:18:003
2649091111,2phc2sys0-21swapper/322:46:083
2649091110,3phc2sys0-21swapper/319:37:573
2649091110,2phc2sys0-21swapper/323:37:233
2649091110,2phc2sys0-21swapper/322:03:163
2649091110,2phc2sys0-21swapper/321:44:093
2649091110,2phc2sys0-21swapper/319:55:443
2649091110,1phc2sys0-21swapper/320:55:563
2649091110,1phc2sys0-21swapper/320:44:183
2649091102,1phc2sys0-21swapper/320:54:233
2649091101,3phc2sys0-21swapper/323:43:523
2649091101,2phc2sys0-21swapper/323:08:023
2649091101,2phc2sys0-21swapper/319:22:583
2649091100,4phc2sys0-21swapper/321:03:003
2649091100,2phc2sys0-21swapper/323:30:343
2649091100,2phc2sys0-21swapper/322:50:493
2649091100,2phc2sys0-21swapper/322:16:273
2649091100,2phc2sys0-21swapper/321:55:353
2649091100,2phc2sys0-21swapper/321:35:513
2649091100,2phc2sys0-21swapper/321:11:553
2649091100,2phc2sys0-21swapper/321:10:023
2649091100,2phc2sys0-21swapper/320:33:083
2649091100,1phc2sys0-21swapper/319:29:553
264909191,2phc2sys0-21swapper/320:08:103
264909191,2phc2sys0-21swapper/319:42:253
264909190,2phc2sys0-21swapper/322:55:143
264909190,2phc2sys0-21swapper/320:10:353
264909190,2phc2sys0-21swapper/319:13:043
264909190,1phc2sys0-21swapper/320:02:563
264909190,1phc2sys0-21swapper/319:54:553
264909181,2phc2sys0-21swapper/320:37:403
264909180,2phc2sys0-21swapper/320:25:023
264909180,2phc2sys0-21swapper/320:23:023
264909180,1phc2sys0-21swapper/320:45:383
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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