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2026-01-02 - 05:48
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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 Fri Jan 02, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33432062940,2sleep20-21swapper/219:35:022
33918282330,3sleep13391823-21perf20:15:001
3310324992717,6cyclictest1326-21systemd-logind22:40:010
331032999246,3cyclictest0-21swapper/100:10:011
3310329992316,3cyclictest1426-21gdbus00:33:241
3310324992220,1cyclictest3781214-21munin-run00:10:010
3310324992213,5cyclictest3514642-21/usr/sbin/munin21:43:200
34767962210,0sleep170-21kcompactd021:20:381
34767962210,0sleep170-21kcompactd021:20:381
3310329992118,2cyclictest3790263-21apt-get00:15:011
3310329992114,3cyclictest3717396-21unixbench_multi23:33:261
331032499211,16cyclictest0-21swapper/000:13:070
3310324992110,6cyclictest0-21swapper/023:15:020
2649091212,2phc2sys0-21swapper/300:39:563
331033199207,7cyclictest0-21swapper/222:50:012
331033199206,8cyclictest0-21swapper/200:40:012
3310324992016,2cyclictest0-21swapper/019:20:010
3310324992012,7cyclictest0-21swapper/023:35:000
3310324992012,4cyclictest3461726-21irqcore21:13:180
3310324992010,6cyclictest0-21swapper/021:35:020
3310329991916,2cyclictest3646992-21latency_hist22:55:011
3310329991916,2cyclictest1326-21systemd-logind20:00:011
3310329991916,2cyclictest1288-1atopacctd20:05:011
331032499199,5cyclictest0-21swapper/021:55:020
331032499198,6cyclictest0-21swapper/021:58:260
3310324991913,5cyclictest3688902-21kthreadcore23:18:200
3310324991912,2cyclictest0-21swapper/022:53:240
3310324991911,7cyclictest0-21swapper/000:35:010
2649191190,1ptp4l0-21swapper/300:33:133
2649091190,4phc2sys0-21swapper/323:50:293
2649091190,3phc2sys0-21swapper/321:30:013
2649091190,2phc2sys0-21swapper/322:35:193
2649091190,2phc2sys0-21swapper/322:02:123
3310331991816,1cyclictest0-21swapper/222:43:192
3310331991816,1cyclictest0-21swapper/200:29:322
3310331991815,1cyclictest0-21swapper/223:25:012
3310331991815,1cyclictest0-21swapper/222:35:012
3310331991815,1cyclictest0-21swapper/219:20:012
331032999189,4cyclictest0-21swapper/122:39:411
3310329991815,2cyclictest3835169-21systemctl00:40:001
3310329991815,2cyclictest3747894-21aten_repower_vo23:53:111
3310329991815,2cyclictest3476080-21perf21:20:011
3310329991815,2cyclictest3428053-21idleruntime-cro20:45:001
3310329991815,2cyclictest3428053-21idleruntime-cro20:45:001
3310329991815,2cyclictest3324847-21true19:20:011
3310329991815,2cyclictest1-21systemd21:50:011
3310329991814,3cyclictest1-21systemd23:00:001
3310329991810,3cyclictest0-21swapper/123:38:221
331032499188,5cyclictest0-21swapper/021:30:000
331032499188,5cyclictest0-21swapper/000:38:400
3310324991815,2cyclictest28938-21cron22:45:010
3310324991814,2cyclictest0-21swapper/022:30:020
2649091181,3phc2sys0-21swapper/319:53:153
2649091180,2phc2sys0-21swapper/322:16:113
331033199179,3cyclictest0-21swapper/200:00:012
331033199172,8cyclictest0-21swapper/220:58:112
3310331991715,1cyclictest0-21swapper/222:35:312
3310331991714,1cyclictest0-21swapper/223:43:262
3310331991714,1cyclictest0-21swapper/223:15:202
3310331991714,1cyclictest0-21swapper/222:30:012
3310331991714,1cyclictest0-21swapper/221:38:152
3310331991714,1cyclictest0-21swapper/220:40:002
3310331991714,1cyclictest0-21swapper/200:33:252
3310331991713,1cyclictest0-21swapper/222:20:022
3310331991712,2cyclictest0-21swapper/222:15:002
3310331991711,3cyclictest0-21swapper/220:55:012
3310329991714,2cyclictest3446125-21dump-pmu-power21:00:001
3310329991714,2cyclictest29021-21rtkit-daemon21:58:531
3310329991714,2cyclictest1290-21dbus-daemon23:05:021
3310329991714,2cyclictest0-21swapper/100:00:011
3310329991713,3cyclictest3795654-21kthreadcore00:18:181
3310329991713,3cyclictest3795654-21kthreadcore00:18:181
3310329991713,3cyclictest3415992-21kworker/u16:0+nfsiod22:00:541
3310329991713,3cyclictest1313-21gmain20:20:011
3310329991712,3cyclictest0-21swapper/121:38:541
3310329991712,2cyclictest134050irq/121-eno122:18:151
3310329991710,3cyclictest3810702-21/usr/sbin/munin00:28:191
3310329991710,3cyclictest3669410-21kthreadcore23:08:221
331032499179,2cyclictest0-21swapper/021:48:210
331032499179,2cyclictest0-21swapper/000:18:140
331032499179,2cyclictest0-21swapper/000:18:140
331032499178,2cyclictest0-21swapper/022:23:120
3310324991714,2cyclictest3410089-21cut20:30:020
331033199166,4cyclictest0-21swapper/223:40:012
3310331991614,1cyclictest0-21swapper/200:10:022
3310331991613,2cyclictest0-21swapper/200:18:182
3310331991613,2cyclictest0-21swapper/200:18:182
3310331991613,1cyclictest0-21swapper/223:48:252
3310331991613,1cyclictest0-21swapper/223:08:192
3310331991613,1cyclictest0-21swapper/222:05:402
3310331991613,1cyclictest0-21swapper/219:28:212
3310331991613,1cyclictest0-21swapper/200:03:212
331032999169,3cyclictest3496332-21/usr/sbin/munin21:33:091
3310329991613,2cyclictest3628628-21latency_hist22:45:011
3310329991613,2cyclictest3494035-21latency_hist21:30:001
3310329991613,2cyclictest0-21swapper/123:28:211
3310329991612,3cyclictest3754634-21kworker/u16:4+nfsiod00:02:361
3310329991610,5cyclictest3604743-21ssh22:33:161
331032499168,5cyclictest3725595-21kthreadcore23:38:200
331032499168,4cyclictest0-21swapper/023:43:180
331032499166,6cyclictest3440841-21runrttasks20:58:120
3310324991614,1cyclictest29026-21sendmail-mta23:25:060
3310324991613,2cyclictest3668347-21irqrtprio23:08:190
3310324991613,2cyclictest3422133-21latency_hist20:40:010
3310324991613,2cyclictest3367421-21latency_hist19:55:000
3310324991613,2cyclictest0-21swapper/019:40:010
3310324991613,2cyclictest0-21swapper/000:00:010
3310324991612,3cyclictest3637779-21kworker/u16:0+nfsiod22:55:450
3310324991612,3cyclictest3393233-21if_err_enp1s0.820:18:180
3310324991611,1cyclictest0-21swapper/019:58:220
3310324991610,5cyclictest3577623-21cstates22:18:130
2649091160,2phc2sys0-21swapper/322:58:233
2649091160,2phc2sys0-21swapper/321:45:003
2649091160,2phc2sys0-21swapper/320:05:293
331033199151,9cyclictest0-21swapper/222:00:012
3310331991513,1cyclictest0-21swapper/223:15:022
3310331991513,1cyclictest0-21swapper/219:40:022
3310331991512,1cyclictest0-21swapper/223:52:432
3310331991512,1cyclictest0-21swapper/223:28:142
3310331991512,1cyclictest0-21swapper/222:58:182
3310331991512,1cyclictest0-21swapper/221:43:232
3310331991512,1cyclictest0-21swapper/221:23:182
3310331991512,1cyclictest0-21swapper/221:23:182
3310331991512,1cyclictest0-21swapper/221:10:312
3310331991512,1cyclictest0-21swapper/220:50:002
3310331991512,1cyclictest0-21swapper/220:28:132
3310331991512,1cyclictest0-21swapper/220:05:002
3310331991512,1cyclictest0-21swapper/219:23:222
3310331991512,1cyclictest0-21swapper/219:15:012
3310331991512,1cyclictest0-21swapper/200:23:212
3310331991511,2cyclictest0-21swapper/219:55:012
3310331991510,1cyclictest0-21swapper/219:58:112
331033199150,9cyclictest0-21swapper/221:53:202
331032999159,1cyclictest134050irq/121-eno100:24:351
331032999156,4cyclictest0-21swapper/122:13:231
3310329991512,2cyclictest3465566-21head21:13:231
3310329991512,2cyclictest3362494-21fschecks_time19:53:161
3310329991511,3cyclictest3619883-21kworker/u16:3+nfsiod23:41:511
3310329991511,3cyclictest3575142-21kworker/u16:1+nfsiod22:46:351
3310329991511,3cyclictest3433268-21missed_timers20:48:211
3310329991511,3cyclictest1327-21in:imuxsock23:15:021
331032499156,5cyclictest0-21swapper/023:03:140
331032499155,4cyclictest3349665-21sshd19:41:400
331032499151,9cyclictest3424020-21kthreadcore20:43:190
331032499151,9cyclictest3424020-21kthreadcore20:43:190
3310324991513,1cyclictest1290-21dbus-daemon19:35:010
3310324991513,1cyclictest0-21swapper/000:26:190
3310324991512,2cyclictest3428876-21cpuspeed_turbos20:48:130
3310324991512,2cyclictest3411129-21gltestperf20:33:180
3310324991512,2cyclictest3317047-21kthreadcore19:15:010
3310324991511,3cyclictest3415992-21kworker/u16:0+nfsiod21:22:330
3310324991511,3cyclictest3415992-21kworker/u16:0+nfsiod21:22:330
331032499151,10cyclictest0-21swapper/022:05:460
2649091151,3phc2sys0-21swapper/319:43:103
2649091150,5phc2sys0-21swapper/323:20:013
2649091150,3phc2sys0-21swapper/323:37:573
2649091150,3phc2sys0-21swapper/320:15:013
2649091150,2phc2sys0-21swapper/321:55:423
2649091150,2phc2sys0-21swapper/321:46:083
331033199148,4cyclictest34874942sleep221:28:122
3310331991412,1cyclictest0-21swapper/222:53:142
3310331991412,1cyclictest0-21swapper/222:22:362
3310331991412,1cyclictest0-21swapper/200:15:022
3310331991411,1cyclictest0-21swapper/223:02:392
3310331991411,1cyclictest0-21swapper/222:01:262
3310331991411,1cyclictest0-21swapper/221:48:202
3310331991411,1cyclictest0-21swapper/221:32:442
3310331991411,1cyclictest0-21swapper/221:16:072
3310331991411,1cyclictest0-21swapper/221:10:022
3310331991411,1cyclictest0-21swapper/221:03:202
3310331991411,1cyclictest0-21swapper/220:15:012
3310331991411,1cyclictest0-21swapper/219:48:222
3310331991411,1cyclictest0-21swapper/219:43:182
331032999148,2cyclictest0-21swapper/122:25:011
331032999145,4cyclictest0-21swapper/123:20:021
331032999141,4cyclictest3595140-21ssh22:28:121
3310329991412,1cyclictest3310320-21cyclictest19:23:121
3310329991411,2cyclictest3696938-21kthreadcore23:23:201
3310329991411,2cyclictest3518867-21kthreadcore21:43:201
3310329991411,2cyclictest3448009-21kthreadcore21:03:211
3310329991411,2cyclictest3439574-21mailstats20:53:231
3310329991411,2cyclictest3332121-21gltestperf19:28:141
3310329991411,2cyclictest3310320-21cyclictest19:38:261
3310329991411,2cyclictest3310320-21cyclictest19:35:021
3310329991411,2cyclictest0-21swapper/121:55:011
331032499146,2cyclictest0-21swapper/022:13:200
331032499141,4cyclictest0-21swapper/022:02:560
3310324991411,2cyclictest3604347-21grep22:33:140
3310324991411,2cyclictest3473167-21kthreadcore21:18:180
3310324991411,2cyclictest3402845-21kthreadcore20:23:190
3310324991411,2cyclictest3387596-21kernelversion20:13:170
3310324991411,2cyclictest1290-21dbus-daemon19:30:010
3310324991410,3cyclictest3683778-21kworker/u16:2+nfsiod23:45:590
3310324991410,3cyclictest3329632-21kthreadcore19:23:190
331032499140,9cyclictest3698495-21kthreadcore23:23:200
2649091143,2phc2sys0-21swapper/320:18:203
2649091140,6phc2sys0-21swapper/322:29:373
2649091140,3phc2sys0-21swapper/322:42:193
2649091140,2phc2sys0-21swapper/323:48:133
2649091140,2phc2sys0-21swapper/323:08:453
2649091140,1phc2sys0-21swapper/321:12:483
3310331991310,1cyclictest0-21swapper/220:43:202
3310331991310,1cyclictest0-21swapper/220:43:202
3310331991310,1cyclictest0-21swapper/220:18:192
331032999137,4cyclictest3405149-21grep20:28:171
331032999135,7cyclictest3737987-1ssh23:47:021
3310329991310,2cyclictest3560592-21tr22:08:201
3310329991310,2cyclictest3457589-21processes21:08:231
3310329991310,2cyclictest3418079-21kthreadcore20:38:211
3310329991310,2cyclictest3411765-21kthreadcore20:33:221
3310329991310,2cyclictest3400876-21kthreadcore20:23:181
3310329991310,2cyclictest3355359-21systemd-run19:45:011
3310329991310,2cyclictest3316320-21sh19:15:001
331032499139,3cyclictest3382889-21kthreadcore20:08:180
331032499137,5cyclictest3750628-21kthreadcore23:53:180
331032499136,5cyclictest257-21systemd-journal19:10:010
331032499136,2cyclictest0-21swapper/000:23:140
331032499133,4cyclictest2016-21snmpd22:47:030
331032499132,5cyclictest3355981-21head19:48:130
331032499131,7cyclictest3373967-21/usr/sbin/munin20:03:110
331032499131,1cyclictest134050irq/121-eno121:36:550
3310324991310,2cyclictest3769922-21kthreadcore00:03:220
3310324991310,2cyclictest3452809-21aten_repower_en21:08:110
3310324991310,2cyclictest3446729-21aten_repower_cu21:03:140
2649091130,2phc2sys0-21swapper/323:02:083
2649091130,2phc2sys0-21swapper/322:08:363
2649091130,2phc2sys0-21swapper/321:17:413
2649091130,2phc2sys0-21swapper/320:33:413
2649091130,2phc2sys0-21swapper/300:20:003
2649091130,2phc2sys0-21swapper/300:20:003
331033199128,2cyclictest0-21swapper/219:10:022
3310331991210,1cyclictest0-21swapper/223:33:582
3310331991210,1cyclictest0-21swapper/220:33:222
3310331991210,1cyclictest0-21swapper/220:22:332
331032999129,2cyclictest3385061-21pmu-power20:08:221
331032999129,2cyclictest0-21swapper/119:50:001
331032499121,7cyclictest0-21swapper/020:53:110
2649091123,2phc2sys0-21swapper/323:24:163
2649091120,2phc2sys0-21swapper/323:27:173
2649091120,2phc2sys0-21swapper/321:50:183
2649091120,2phc2sys0-21swapper/320:47:183
2649091120,2phc2sys0-21swapper/320:26:223
2649091120,2phc2sys0-21swapper/319:18:103
2649091120,1phc2sys0-21swapper/322:11:383
37715012110,2sleep30-21swapper/300:03:483
33733902117,2sleep30-21swapper/320:00:013
331033199119,1cyclictest0-21swapper/220:05:432
331032999111,4cyclictest3310190-21latency_hist19:10:011
2649091111,2phc2sys0-21swapper/323:42:243
2649091110,2phc2sys0-21swapper/323:31:583
2649091110,2phc2sys0-21swapper/323:10:103
2649091110,2phc2sys0-21swapper/320:53:553
2649091110,2phc2sys0-21swapper/320:03:183
2649091110,2phc2sys0-21swapper/300:26:223
2649091110,2phc2sys0-21swapper/300:10:023
2649091110,1phc2sys0-21swapper/321:37:253
2649091110,1phc2sys0-21swapper/319:38:293
2649091102,2phc2sys0-21swapper/321:08:133
2649091101,2phc2sys0-21swapper/320:45:013
2649091101,2phc2sys0-21swapper/320:45:013
2649091101,2phc2sys0-21swapper/319:48:153
2649091101,2phc2sys0-21swapper/319:13:133
2649091100,2phc2sys0-21swapper/323:56:383
2649091100,2phc2sys0-21swapper/322:45:493
2649091100,2phc2sys0-21swapper/322:22:363
2649091100,2phc2sys0-21swapper/321:21:253
2649091100,2phc2sys0-21swapper/321:21:253
2649091100,2phc2sys0-21swapper/321:05:013
2649091100,2phc2sys0-21swapper/319:22:533
2649091100,2phc2sys0-21swapper/319:08:203
2649091100,2phc2sys0-21swapper/300:20:403
2649091100,2phc2sys0-21swapper/300:10:463
264909191,3phc2sys0-21swapper/319:28:103
264909191,2phc2sys0-21swapper/322:30:063
264909191,2phc2sys0-21swapper/320:38:203
264909190,2phc2sys0-21swapper/322:50:023
264909190,2phc2sys0-21swapper/321:30:103
264909190,2phc2sys0-21swapper/320:58:203
264909190,2phc2sys0-21swapper/320:23:173
264909190,2phc2sys0-21swapper/319:33:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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