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2026-07-12 - 22:38
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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 Jul 12, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
345719421120,2sleep30-21swapper/322:49:423
32506572280,2sleep20-21swapper/220:19:442
3163450992821,3cyclictest191rcu_preempt21:35:021
3163449992817,7cyclictest3163447-21cyclictest00:39:420
3163450992614,7cyclictest3337386-21sed21:29:401
3163450992512,8cyclictest3516865-21kthreadcore23:29:401
3163450992512,8cyclictest3489058-21latency23:09:421
3163450992421,2cyclictest3356844-21grep21:40:011
3163450992411,8cyclictest3482708-21latency_hist23:05:011
3163451992320,1cyclictest0-21swapper/222:45:012
3163450992319,3cyclictest3196590-21systemd19:35:011
3163450992319,3cyclictest3170069-21hddtemp_smartct19:15:021
3163450992314,3cyclictest0-21swapper/123:15:031
3163449992311,7cyclictest0-21swapper/021:54:440
3163449992311,6cyclictest0-21swapper/000:34:360
33335412220,2sleep30-21swapper/321:24:413
316345099228,6cyclictest0-21swapper/123:54:371
3163450992211,7cyclictest3429598-21kthreadcore22:29:421
3163450992211,5cyclictest1237-21mta-sts-daemon21:45:071
3163450992210,7cyclictest0-21swapper/120:45:011
3163449992219,2cyclictest3600986-21sh00:25:010
316345099218,8cyclictest0-21swapper/122:54:491
3163450992110,7cyclictest3452134-21latency22:44:441
316345099210,15cyclictest3535616-21ssh23:42:231
316344999219,7cyclictest0-21swapper/022:59:320
3163449992118,2cyclictest3169562-21systemctl19:15:010
316344999211,14cyclictest0-21swapper/023:14:360
3153791211,9phc2sys0-21swapper/323:44:343
316345099208,5cyclictest3332246-21kthreadcore21:24:401
316345099206,9cyclictest3282202-21taskset20:48:421
316345099206,3cyclictest0-21swapper/122:10:021
3163450992017,2cyclictest3382175-21grep21:59:411
3163450992013,3cyclictest3573093-21runrttasks00:09:031
316345099200,14cyclictest3322595-21grep21:19:401
316344999209,6cyclictest0-21swapper/023:09:470
3163449992017,2cyclictest660-21dbus-daemon00:30:010
3163449992013,2cyclictest34233601systemd-run22:25:010
3163449992011,8cyclictest0-21swapper/000:04:410
3163451991917,1cyclictest0-21swapper/222:40:012
3163451991917,1cyclictest0-21swapper/221:30:012
3163451991917,1cyclictest0-21swapper/200:40:012
3163451991917,1cyclictest0-21swapper/200:00:012
3163451991916,1cyclictest0-21swapper/223:20:012
3163451991916,1cyclictest0-21swapper/223:00:012
316345099198,6cyclictest3169569-21munin-node23:34:541
316345099198,4cyclictest3607888-21timedrift00:29:471
316345099197,7cyclictest0-21swapper/100:39:401
316345099196,8cyclictest3528977-21acpi23:39:321
316345099196,8cyclictest0-21swapper/100:14:391
316345099192,8cyclictest3220818-21cat19:54:481
3163450991912,3cyclictest3469272-21runrttasks22:58:351
3163450991911,2cyclictest3163447-21cyclictest22:37:211
316344999198,6cyclictest0-21swapper/023:29:320
3163449991916,2cyclictest3437930-21dump-pmu-power22:35:000
3163449991914,4cyclictest3340852-21kthreadcore21:29:420
3163449991911,7cyclictest3507711-21if_err_enp1s023:24:390
34095592180,2sleep20-21swapper/222:17:342
3163451991815,1cyclictest0-21swapper/221:45:022
316345099189,5cyclictest1242-21mta-sts-daemon19:22:531
316345099188,5cyclictest808-21hwrng19:46:581
316345099186,7cyclictest1247-21mta-sts-daemon22:14:291
316345099186,5cyclictest3203155-21taskset19:40:141
316345099183,10cyclictest0-21swapper/122:19:211
316345099182,7cyclictest0-21swapper/100:20:361
3163450991815,2cyclictest3251345-21/usr/sbin/munin20:20:011
3163450991811,2cyclictest1237-21mta-sts-daemon22:24:031
3163450991810,4cyclictest3544098-21cpuspeed_turbos23:49:361
3163450991810,4cyclictest3544098-21cpuspeed_turbos23:49:361
316344999188,6cyclictest0-21swapper/022:20:010
316344999186,7cyclictest0-21swapper/023:49:340
316344999186,7cyclictest0-21swapper/023:49:340
3163449991816,1cyclictest3190426-21gpgv19:30:010
3163449991815,2cyclictest660-21dbus-daemon20:10:010
3163449991815,2cyclictest660-21dbus-daemon19:20:010
3163449991815,2cyclictest1246-21mta-sts-daemon21:35:050
3153791183,2phc2sys0-21swapper/321:19:423
3153791180,2phc2sys0-21swapper/323:32:353
3153791180,2phc2sys0-21swapper/322:43:463
33286122170,0sleep070-21kcompactd021:23:590
3163451991715,1cyclictest0-21swapper/223:15:022
3163451991715,1cyclictest0-21swapper/200:10:022
3163451991714,1cyclictest0-21swapper/222:49:412
3163451991714,1cyclictest0-21swapper/222:04:472
3163451991714,1cyclictest0-21swapper/221:15:012
316345099174,7cyclictest1020-21runrttasks23:17:251
316345099173,9cyclictest3557374-21ssh23:56:191
316345099173,5cyclictest3611144-21basename00:34:401
316345099171,6cyclictest3293976-21munin-run20:55:021
316345099171,6cyclictest0-21swapper/122:48:301
316345099171,6cyclictest0-21swapper/121:41:131
3163450991714,2cyclictest3512658-21systemd-run23:25:031
3163450991714,2cyclictest3312301-21runrttasks21:10:091
3163450991713,3cyclictest3264763-21gltestperf20:34:371
316345099171,11cyclictest3588227-21cpuspeed_turbos00:19:361
316345099170,12cyclictest3387379-21ssh22:02:111
316345099170,12cyclictest3306244-21taskset21:06:161
316345099170,12cyclictest3257784-21taskset20:26:221
316345099170,11cyclictest3568684-21cut00:04:411
316345099170,11cyclictest3257582-21munin-run20:25:021
316344999179,7cyclictest0-21swapper/021:49:350
316344999178,4cyclictest3233172-21latency_hist20:05:010
316344999177,5cyclictest0-21swapper/022:30:020
3163449991714,2cyclictest3269703-21systemd20:35:020
3163449991710,2cyclictest0-21swapper/022:00:020
3153791170,2phc2sys0-21swapper/323:54:133
3153791170,2phc2sys0-21swapper/321:53:313
3153791170,2phc2sys0-21swapper/300:13:433
3163451991614,1cyclictest0-21swapper/220:00:022
3163451991614,1cyclictest0-21swapper/219:15:022
3163451991613,1cyclictest0-21swapper/223:54:452
3163451991613,1cyclictest0-21swapper/222:14:332
3163451991613,1cyclictest0-21swapper/222:00:022
3163451991613,1cyclictest0-21swapper/200:34:392
316345099164,5cyclictest1247-21mta-sts-daemon19:29:351
316345099163,4cyclictest3376309-21kthreadcore21:54:461
316345099162,7cyclictest1063-21lldpd19:36:471
316345099160,12cyclictest3294374-21/usr/sbin/munin20:59:421
316345099160,11cyclictest3431327-21runrttasks22:31:281
316345099160,11cyclictest3300272-21taskset21:02:001
316345099160,11cyclictest3239746-21taskset20:13:311
316345099160,11cyclictest3233795-21/usr/sbin/munin20:09:341
316345099160,11cyclictest3172038-21taskset19:15:451
316345099160,11cyclictest1020-21runrttasks20:02:081
316345099160,11cyclictest1020-21runrttasks19:58:031
316344999169,6cyclictest0-21swapper/023:34:400
316344999168,6cyclictest491rcuog/221:34:390
316344999166,6cyclictest0-21swapper/022:49:430
316344999165,6cyclictest0-21swapper/023:16:490
3163449991613,2cyclictest3560027-21kthreadcore23:59:410
3163449991613,2cyclictest3400419-21pmu-power22:09:430
3163449991613,2cyclictest3325194-21kthreadcore21:19:420
3163449991613,2cyclictest3307192-21gltestperf21:09:380
3163449991613,2cyclictest3300030-21systemd21:00:020
3163449991613,2cyclictest0-21swapper/023:04:490
3163449991612,3cyclictest3126810-21kworker/u16:3+nfsiod21:40:480
3163449991611,4cyclictest738-21gdbus00:10:020
3163449991610,5cyclictest3539524-21kthreadcore23:44:410
316344999160,7cyclictest1-21systemd19:25:010
316344999160,3cyclictest3446556-21ssh22:42:010
3153791160,4phc2sys0-21swapper/321:27:033
3153791160,2phc2sys0-21swapper/300:28:113
3153791160,1phc2sys0-21swapper/323:47:113
3153791160,1phc2sys0-21swapper/323:47:113
3153791160,1phc2sys0-21swapper/300:07:553
316345199151,5cyclictest0-21swapper/221:00:012
3163451991513,1cyclictest0-21swapper/221:20:022
3163451991513,1cyclictest0-21swapper/200:15:002
3163451991512,1cyclictest0-21swapper/223:24:402
3163451991512,1cyclictest0-21swapper/223:09:362
3163451991512,1cyclictest0-21swapper/222:26:412
3163451991512,1cyclictest0-21swapper/221:40:022
3163451991512,1cyclictest0-21swapper/221:24:462
3163451991512,1cyclictest0-21swapper/220:14:442
3163451991512,1cyclictest0-21swapper/219:34:462
3163451991512,1cyclictest0-21swapper/219:29:402
3163451991512,1cyclictest0-21swapper/200:29:462
3163451991511,2cyclictest0-21swapper/222:06:552
3163451991511,2cyclictest0-21swapper/200:00:232
316345099150,10cyclictest3273890-21grep20:39:411
316344999159,5cyclictest1246-21mta-sts-daemon23:38:080
316344999158,4cyclictest3078776-21kworker/u16:1-events_unbound19:34:340
316344999157,4cyclictest0-21swapper/022:54:360
316344999155,8cyclictest3285641-21tr20:49:420
316344999154,6cyclictest0-21swapper/022:02:550
316344999153,1cyclictest0-21swapper/020:44:380
3163449991512,2cyclictest671-21polkitd20:25:010
3163449991512,2cyclictest3583427-21kthreadcore00:14:410
3163449991512,2cyclictest3555910-21needreboot23:54:440
3163449991512,2cyclictest3300470-21/usr/sbin/munin21:04:470
3163449991512,2cyclictest3263158-21timerandwakeup20:29:480
3163449991512,2cyclictest3210900-21sed19:49:410
3163449991512,2cyclictest3203039-21munin-plugin-st19:40:020
3163449991512,2cyclictest3163626-21systemd19:10:020
3163449991512,2cyclictest3163626-21systemd19:10:020
3163449991511,3cyclictest3270295-21aten_repower_po20:39:350
3153791150,4phc2sys0-21swapper/319:54:343
3153791150,3phc2sys0-21swapper/323:22:573
3153791150,2phc2sys0-21swapper/322:25:153
35665102140,2sleep30-21swapper/300:04:373
3163451991412,1cyclictest0-21swapper/223:44:372
3163451991411,2cyclictest0-21swapper/220:02:562
3163451991411,1cyclictest0-21swapper/223:34:482
3163451991411,1cyclictest0-21swapper/223:04:072
3163451991411,1cyclictest0-21swapper/222:55:002
3163451991411,1cyclictest0-21swapper/222:23:322
3163451991411,1cyclictest0-21swapper/221:49:072
3163451991411,1cyclictest0-21swapper/221:09:352
3163451991411,1cyclictest0-21swapper/220:51:562
3163451991411,1cyclictest0-21swapper/220:34:392
3163451991411,1cyclictest0-21swapper/200:17:082
3163451991410,2cyclictest0-21swapper/221:53:272
316345199140,8cyclictest0-21swapper/219:54:342
3163450991411,2cyclictest3163457-21sh19:10:011
3163450991411,2cyclictest3163457-21sh19:10:011
316344999143,7cyclictest808-21hwrng19:51:040
3163449991411,2cyclictest3226865-21timerwakeupswit19:59:480
3163449991411,2cyclictest3204466-21sort19:44:390
3163449991411,2cyclictest1237-21mta-sts-daemon21:13:320
3163449991410,3cyclictest3248698-21kthreadcore20:19:420
316344999140,9cyclictest3589543-21kthreadcore00:19:410
3153791141,2phc2sys0-21swapper/321:34:333
3153791140,6phc2sys0-21swapper/322:30:043
3153791140,5phc2sys0-21swapper/323:14:353
3153791140,2phc2sys0-21swapper/323:57:533
3153791140,2phc2sys0-21swapper/321:47:453
3153791140,2phc2sys0-21swapper/300:23:223
3153791140,1phc2sys0-21swapper/320:39:173
492398130,6rtkit-daemon1242-21mta-sts-daemon20:54:020
3163451991311,1cyclictest0-21swapper/222:30:122
3163451991311,1cyclictest0-21swapper/219:23:292
3163451991311,1cyclictest0-21swapper/219:20:022
3163451991310,2cyclictest0-21swapper/221:30:402
3163451991310,1cyclictest0-21swapper/223:45:382
3163451991310,1cyclictest0-21swapper/223:45:382
3163451991310,1cyclictest0-21swapper/220:44:442
3163451991310,1cyclictest0-21swapper/220:39:422
3163451991310,1cyclictest0-21swapper/200:22:002
316345199130,8cyclictest0-21swapper/223:39:332
316344999134,2cyclictest0-21swapper/022:10:070
3153791130,3phc2sys0-21swapper/322:59:093
3153791130,2phc2sys0-21swapper/323:03:283
3153791130,2phc2sys0-21swapper/321:59:013
3153791130,2phc2sys0-21swapper/319:49:323
3153791130,2phc2sys0-21swapper/300:37:453
3153791130,2phc2sys0-21swapper/300:16:173
3153791130,1phc2sys0-21swapper/319:30:493
316345199129,1cyclictest0-21swapper/219:45:332
316345199129,1cyclictest0-21swapper/219:35:592
316345199121,5cyclictest0-21swapper/219:44:332
3163451991210,1cyclictest0-21swapper/223:27:392
3163451991210,1cyclictest0-21swapper/220:28:072
3163451991210,1cyclictest0-21swapper/220:25:032
3163451991210,1cyclictest0-21swapper/220:09:322
316344999122,6cyclictest0-21swapper/020:11:280
316344999122,3cyclictest0-21swapper/022:35:070
3153791124,2phc2sys0-21swapper/319:09:423
3153791124,2phc2sys0-21swapper/319:09:423
3153791123,2phc2sys0-21swapper/322:01:263
3153791120,2phc2sys0-21swapper/321:36:333
3153791120,2phc2sys0-21swapper/320:16:093
3153791120,2phc2sys0-21swapper/319:57:063
34092922110,2sleep30-21swapper/322:16:443
316345199119,1cyclictest0-21swapper/220:46:212
316345199119,1cyclictest0-21swapper/219:10:012
316345199119,1cyclictest0-21swapper/219:10:012
316345199118,1cyclictest0-21swapper/221:01:032
3153791111,4phc2sys0-21swapper/320:44:333
3153791111,2phc2sys0-21swapper/319:40:553
3153791111,2phc2sys0-21swapper/319:14:393
3153791110,3phc2sys0-21swapper/320:55:003
3153791110,3phc2sys0-21swapper/320:34:333
3153791110,2phc2sys0-21swapper/322:09:313
3153791110,2phc2sys0-21swapper/320:59:333
3153791110,2phc2sys0-21swapper/320:06:513
3153791110,1phc2sys0-21swapper/323:05:263
3153791110,1phc2sys0-21swapper/319:17:153
3153791102,2phc2sys0-21swapper/321:12:043
3153791101,2phc2sys0-21swapper/322:21:103
3153791101,2phc2sys0-21swapper/322:12:163
3153791100,3phc2sys0-21swapper/320:24:353
3153791100,2phc2sys0-21swapper/323:28:113
3153791100,2phc2sys0-21swapper/323:18:133
3153791100,2phc2sys0-21swapper/322:52:523
3153791100,2phc2sys0-21swapper/322:39:253
3153791100,2phc2sys0-21swapper/320:29:403
3153791100,1phc2sys0-21swapper/323:39:453
3153791100,1phc2sys0-21swapper/319:35:343
315379191,2phc2sys0-21swapper/321:40:183
315379191,2phc2sys0-21swapper/321:03:033
315379191,2phc2sys0-21swapper/320:13:293
315379190,2phc2sys0-21swapper/321:09:403
315379190,2phc2sys0-21swapper/320:48:033
315379190,2phc2sys0-21swapper/320:00:033
315379190,2phc2sys0-21swapper/319:29:453
315379190,2phc2sys0-21swapper/300:30:043
315379190,1phc2sys0-21swapper/319:20:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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