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2025-12-15 - 08:58
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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 Dec 15, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35036322740,2sleep13266293-21cyclictest22:23:431
34976352230,2sleep20-21swapper/222:18:432
3266299992118,2cyclictest3474552-21perf22:00:011
3266298992118,2cyclictest3613226-21cron23:55:000
3266298992115,5cyclictest1290-21dbus-daemon22:50:010
3266300992018,1cyclictest0-21swapper/222:25:012
3266300992017,1cyclictest0-21swapper/221:15:012
3266300992016,1cyclictest0-21swapper/223:20:022
3266298991916,2cyclictest3516919-21idleruntime-cro22:35:000
3266298991916,2cyclictest1290-21dbus-daemon20:30:010
3266300991816,1cyclictest0-21swapper/219:15:012
3266300991815,1cyclictest0-21swapper/221:00:012
3266299991815,2cyclictest3335068-21idleruntime-cro20:05:001
3266299991815,2cyclictest3266293-21cyclictest23:10:011
3266298991815,2cyclictest3486616-21systemd-run22:10:000
3266298991815,2cyclictest3408115-21systemd-run21:05:010
3266298991815,2cyclictest3329160-21sh20:00:010
3266298991815,2cyclictest0-21swapper/020:05:010
3266300991714,1cyclictest0-21swapper/223:40:012
3266300991714,1cyclictest0-21swapper/220:50:012
3266300991714,1cyclictest0-21swapper/219:55:002
3266299991714,2cyclictest0-21swapper/120:50:001
3266299991713,2cyclictest1326-21systemd-logind00:25:011
3266299991713,2cyclictest1326-21systemd-logind00:25:011
3266298991714,2cyclictest3554925-21kernelversion23:08:400
3266298991714,2cyclictest1288-1atopacctd23:48:490
3266298991714,2cyclictest1288-1atopacctd19:20:020
3266298991713,2cyclictest1326-21systemd-logind20:50:020
3266300991614,1cyclictest0-21swapper/220:45:012
3266300991614,1cyclictest0-21swapper/219:38:442
3266300991613,1cyclictest0-21swapper/223:28:442
3266300991613,1cyclictest0-21swapper/222:30:012
3266300991613,1cyclictest0-21swapper/220:20:012
3266300991613,1cyclictest0-21swapper/219:23:552
3266300991613,1cyclictest0-21swapper/200:15:012
326629999167,4cyclictest1329-21rs:main1
3266299991613,2cyclictest3522973-21latency_hist22:40:011
3266299991613,2cyclictest3402248-21latency_hist21:00:021
3266299991613,2cyclictest3347465-21systemd-run20:15:011
3266299991613,2cyclictest3329104-21cut20:00:011
3266299991613,2cyclictest3304776-21systemd-run19:40:011
3266299991613,2cyclictest0-21swapper/122:10:021
3266299991612,3cyclictest1327-21in:imuxsock20:30:011
326629899166,4cyclictest3353255-21sshd20:18:550
3266298991613,2cyclictest3547062-21perf23:00:000
3266298991613,2cyclictest3493031-21systemd-run22:15:010
3266298991613,2cyclictest3493031-21systemd-run22:15:010
3266298991613,2cyclictest3450590-21cut21:40:010
3266298991613,2cyclictest3379113-21grep20:43:410
3266298991613,2cyclictest3340709-21head20:08:450
3266298991613,2cyclictest3272641-21kthreadcore19:15:010
3266298991613,2cyclictest17350irq/127-ahci[0000:00:17.0]00:03:370
3266298991612,2cyclictest3414303-21systemd-run21:10:020
3266298991611,4cyclictest3619315-40find00:00:000
2649091160,2phc2sys0-21swapper/320:53:423
326630099156,3cyclictest0-21swapper/220:05:022
3266300991513,1cyclictest0-21swapper/222:50:032
3266300991513,1cyclictest0-21swapper/221:35:012
3266300991513,1cyclictest0-21swapper/219:58:402
3266300991513,1cyclictest0-21swapper/219:26:162
3266300991513,1cyclictest0-21swapper/200:03:412
3266300991512,1cyclictest0-21swapper/222:10:002
3266300991512,1cyclictest0-21swapper/221:53:422
3266300991512,1cyclictest0-21swapper/221:23:422
3266300991512,1cyclictest0-21swapper/220:38:522
3266300991512,1cyclictest0-21swapper/219:43:362
3266300991512,1cyclictest0-21swapper/200:33:412
3266300991512,1cyclictest0-21swapper/200:18:462
3266300991512,1cyclictest0-21swapper/200:08:412
3266299991513,1cyclictest3286764-21cut19:25:021
3266299991513,1cyclictest0-21swapper/100:40:001
3266299991512,2cyclictest3654138-21kthreadcore00:28:401
3266299991512,2cyclictest3637664-21apt-key00:15:011
3266299991512,2cyclictest3577715-21aten_repower_cu23:28:361
3266299991512,2cyclictest3462500-21sh21:50:011
3266299991512,2cyclictest3272397-21kthreadcore19:15:011
3266299991512,2cyclictest0-21swapper/121:20:021
3266299991511,3cyclictest1288-1atopacctd19:20:021
326629899158,4cyclictest3632013-21aten2.4-expect00:13:340
326629899155,6cyclictest0-21swapper/000:26:440
3266298991512,2cyclictest3631388-21latency_hist00:10:010
3266298991512,2cyclictest3421471-21if_enp1s021:18:390
3266298991512,2cyclictest3401845-21apt-config21:00:010
3266298991512,2cyclictest3282106-21grep19:23:420
2649091150,1phc2sys0-21swapper/321:38:513
3266300991412,1cyclictest0-21swapper/223:23:372
3266300991412,1cyclictest0-21swapper/221:03:572
3266300991412,1cyclictest0-21swapper/220:30:322
3266300991412,1cyclictest0-21swapper/220:25:272
3266300991412,1cyclictest0-21swapper/219:18:392
3266300991412,1cyclictest0-21swapper/200:28:402
3266300991412,1cyclictest0-21swapper/200:00:022
3266300991411,1cyclictest0-21swapper/223:10:002
3266300991411,1cyclictest0-21swapper/222:50:012
3266300991411,1cyclictest0-21swapper/222:40:012
3266300991411,1cyclictest0-21swapper/221:38:532
326629999145,2cyclictest134050irq/121-eno123:58:431
3266299991412,1cyclictest1326-21systemd-logind19:30:011
3266299991411,2cyclictest3656961-21gltestperf00:33:381
3266299991411,2cyclictest3628699-21kthreadcore00:08:431
3266299991411,2cyclictest3514250-21sed22:33:421
3266299991411,2cyclictest3498110-21needreboot22:18:441
3266299991411,2cyclictest3490164-21sort22:13:431
3266299991411,2cyclictest3490164-21sort22:13:431
3266299991411,2cyclictest3455720-21head21:43:431
3266299991411,2cyclictest3377512-21systemd-run20:40:011
3266299991411,2cyclictest3294308-21grep19:33:401
3266299991411,2cyclictest1290-21dbus-daemon20:10:011
3266299991411,2cyclictest0-21swapper/119:50:001
3266299991410,3cyclictest3608072-21cut23:53:361
3266299991410,3cyclictest3591018-21kthreadcore23:38:401
3266299991410,3cyclictest3436062-21kthreadcore21:28:421
326629899147,6cyclictest3437023-21tr21:28:420
326629899146,7cyclictest3375530-21tr20:38:470
326629899145,2cyclictest0-21swapper/000:33:350
326629899144,4cyclictest3444571-21munin-run21:35:010
326629899141,8cyclictest3539226-21tr22:53:430
326629899141,3cyclictest3294481-21irqstats19:33:400
3266298991411,2cyclictest3479793-21head22:03:430
3266298991411,2cyclictest3395193-21sendmail_mailqu20:53:460
3266298991411,2cyclictest3366651-21gltestperf20:33:370
3266298991411,2cyclictest3323091-21latency_hist19:55:000
3266298991411,2cyclictest0-21swapper/023:30:010
3266298991410,3cyclictest0-21swapper/023:35:010
2649091140,2phc2sys0-21swapper/320:10:023
3266300991311,1cyclictest0-21swapper/222:55:142
3266300991311,1cyclictest0-21swapper/222:43:352
3266300991311,1cyclictest0-21swapper/222:00:072
3266300991311,1cyclictest0-21swapper/221:10:012
3266300991311,1cyclictest0-21swapper/219:48:352
3266300991311,1cyclictest0-21swapper/200:36:332
3266300991310,1cyclictest0-21swapper/223:48:442
3266300991310,1cyclictest0-21swapper/223:43:452
3266300991310,1cyclictest0-21swapper/221:48:452
3266300991310,1cyclictest0-21swapper/221:28:422
3266300991310,1cyclictest0-21swapper/220:53:422
3266300991310,1cyclictest0-21swapper/200:23:392
3266300991310,1cyclictest0-21swapper/200:23:392
326629999131,5cyclictest3318329-21hddtemp_smartct19:53:391
3266299991311,1cyclictest0-21swapper/120:20:011
3266299991310,2cyclictest3597501-21kthreadcore23:43:401
3266299991310,2cyclictest3584439-21gltestperf23:33:381
3266299991310,2cyclictest3577297-21latency_hist23:25:021
3266299991310,2cyclictest3569095-21kthreadcore23:18:421
3266299991310,2cyclictest3561173-21kthreadcore23:13:411
3266299991310,2cyclictest3528228-21missed_timers22:43:431
3266299991310,2cyclictest3476252-21irqrtprio22:03:401
3266299991310,2cyclictest3446365-21kthreadcore21:38:481
3266299991310,2cyclictest3428269-21kthreadcore21:23:411
3266299991310,2cyclictest3409874-21irqrtprio21:08:401
3266299991310,2cyclictest3391504-21irqrtprio20:53:411
3266299991310,2cyclictest3357788-21kthreadcore20:23:431
3266299991310,2cyclictest3306238-21irqcore19:43:391
3266299991310,2cyclictest1426-21gdbus20:45:011
326629899137,1cyclictest3589723-21apt-get23:38:340
326629899136,2cyclictest3306033-21hddtemp_smartct19:43:380
326629899135,2cyclictest0-21swapper/019:28:360
326629899134,5cyclictest3102388-21kworker/u16:2+events_unbound20:13:370
326629899134,5cyclictest0-21swapper/023:43:330
326629899131,7cyclictest3464471-21grep21:53:420
326629899131,7cyclictest3354486-21expr20:23:370
3266298991310,2cyclictest3662302-21/usr/sbin/munin00:38:470
3266298991310,2cyclictest3644965-21tail00:23:390
3266298991310,2cyclictest3644965-21tail00:23:390
3266298991310,2cyclictest3640699-21kthreadcore00:18:410
3266298991310,2cyclictest3568408-21kthreadcore23:18:420
3266298991310,2cyclictest3518333-21if_enp1s022:38:400
3266298991310,2cyclictest3509690-21kthreadcore22:28:400
3266298991310,2cyclictest3500194-21gltestperf22:23:390
3266298991310,2cyclictest3474664-21systemd-run22:00:020
3266298991310,2cyclictest3312605-21kthreadcore19:48:410
3266298991310,2cyclictest1288-1atopacctd22:18:370
3266298991310,2cyclictest0-21swapper/023:05:010
2649091130,2phc2sys0-21swapper/322:19:553
2649091130,1phc2sys0-21swapper/300:25:013
2649091130,1phc2sys0-21swapper/300:25:013
326630099129,1cyclictest0-21swapper/223:02:412
326630099129,1cyclictest0-21swapper/221:18:412
3266300991210,1cyclictest0-21swapper/223:31:562
3266300991210,1cyclictest0-21swapper/223:15:012
3266300991210,1cyclictest0-21swapper/222:13:392
3266300991210,1cyclictest0-21swapper/222:13:392
3266300991210,1cyclictest0-21swapper/221:56:502
3266300991210,1cyclictest0-21swapper/220:20:502
3266300991210,1cyclictest0-21swapper/220:13:382
3266300991210,1cyclictest0-21swapper/220:08:412
3266300991210,1cyclictest0-21swapper/219:31:252
3266300991210,1cyclictest0-21swapper/219:10:012
326629999129,2cyclictest3638334-21aten_repower_en00:18:351
326629999129,2cyclictest3620621-21gltestperf00:03:381
326629999129,2cyclictest3604752-21kthreadcore23:48:431
326629999129,2cyclictest3547709-21aten_repower_en23:03:361
326629999129,2cyclictest3541642-21aten_repower_cu22:58:341
326629999129,2cyclictest3538730-21kthreadcore22:53:431
326629999129,2cyclictest3534710-21timerwakeupswit22:48:461
326629999129,2cyclictest3506756-21kthreadcore22:28:391
326629999129,2cyclictest3463591-21sh21:53:381
326629999129,2cyclictest3442092-21kthreadcore21:33:411
3266299991210,1cyclictest3402430-21runrttasks21:01:191
326629999120,6cyclictest3371422-21latency_hist20:35:011
326629899129,2cyclictest3574857-21kthreadcore23:23:410
326629899129,2cyclictest3524151-21fschecks_count22:43:380
326629899129,2cyclictest3457721-21gltestperf21:48:420
326629899129,2cyclictest3415941-21kernelversion21:13:390
326629899121,6cyclictest3559630-21/usr/sbin/munin23:13:370
326629899121,6cyclictest0-21swapper/019:38:420
326629899120,5cyclictest3451017-21/usr/sbin/munin21:43:370
2902298120,4rtkit-daemon2794907-21munin-node19:06:470
2649091121,1phc2sys0-21swapper/322:14:083
2649091121,1phc2sys0-21swapper/322:14:083
2649091120,2phc2sys0-21swapper/319:45:103
2649091120,1phc2sys0-21swapper/319:41:453
326630099119,1cyclictest0-21swapper/223:52:072
326630099119,1cyclictest0-21swapper/222:32:402
326630099119,1cyclictest0-21swapper/221:41:312
326629899118,2cyclictest3427115-21aten_repower_vo21:23:360
2649091112,1phc2sys0-21swapper/321:30:013
2649091111,2phc2sys0-21swapper/323:23:383
2649091111,2phc2sys0-21swapper/319:53:353
2649091110,2phc2sys0-21swapper/300:02:483
2649091110,1phc2sys0-21swapper/323:46:063
2649091110,1phc2sys0-21swapper/322:35:533
2649091104,2phc2sys0-21swapper/300:30:003
2649091103,2phc2sys0-21swapper/319:13:353
2649091101,2phc2sys0-21swapper/321:53:453
2649091101,2phc2sys0-21swapper/321:33:453
2649091101,1phc2sys0-21swapper/323:55:553
2649091100,5phc2sys0-21swapper/322:02:343
2649091100,2phc2sys0-21swapper/320:30:023
2649091100,1phc2sys0-21swapper/323:32:353
2649091100,1phc2sys0-21swapper/323:18:533
2649091100,1phc2sys0-21swapper/323:11:323
2649091100,1phc2sys0-21swapper/323:04:543
2649091100,1phc2sys0-21swapper/322:41:223
2649091100,1phc2sys0-21swapper/322:26:473
2649091100,1phc2sys0-21swapper/321:56:213
2649091100,1phc2sys0-21swapper/320:47:293
2649091100,1phc2sys0-21swapper/320:37:113
2649091100,1phc2sys0-21swapper/319:58:243
2649091100,1phc2sys0-21swapper/319:21:183
32662999994,4cyclictest1-21systemd19:10:011
264909192,1phc2sys0-21swapper/320:13:433
264909191,3phc2sys0-21swapper/322:08:463
264909191,2phc2sys0-21swapper/323:29:563
264909191,1phc2sys0-21swapper/320:01:453
264909190,6phc2sys3625838-21chrt00:07:323
264909190,2phc2sys0-21swapper/323:38:153
264909190,2phc2sys0-21swapper/323:06:463
264909190,2phc2sys0-21swapper/323:00:023
264909190,2phc2sys0-21swapper/322:48:363
264909190,2phc2sys0-21swapper/321:10:013
264909190,2phc2sys0-21swapper/319:33:483
264909190,2phc2sys0-21swapper/319:06:103
264909190,2phc2sys0-21swapper/300:33:423
264909190,2phc2sys0-21swapper/300:11:493
264909190,1phc2sys0-21swapper/322:50:513
264909190,1phc2sys0-21swapper/321:49:593
264909190,1phc2sys0-21swapper/321:43:473
264909190,1phc2sys0-21swapper/321:11:253
264909190,1phc2sys0-21swapper/319:25:113
264909190,1phc2sys0-21swapper/319:18:413
264909181,3phc2sys0-21swapper/320:33:383
264909181,2phc2sys0-21swapper/300:17:073
264909180,3phc2sys0-21swapper/321:18:463
264909180,2phc2sys0-21swapper/323:53:353
264909180,2phc2sys0-21swapper/321:20:033
264909180,2phc2sys0-21swapper/321:03:443
264909180,2phc2sys0-21swapper/320:58:393
264909180,2phc2sys0-21swapper/320:40:243
264909180,2phc2sys0-21swapper/320:24:563
264909180,2phc2sys0-21swapper/320:18:363
264909180,2phc2sys0-21swapper/319:39:563
264909180,2phc2sys0-21swapper/300:38:513
264909180,1phc2sys0-21swapper/323:41:013
264909180,1phc2sys0-21swapper/322:33:013
264909180,1phc2sys0-21swapper/322:23:423
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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