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2026-07-06 - 09:13
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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 Jul 06, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
62419721110,3sleep1554544-21kworker/1:0+events23:04:481
36518421070,1sleep00-21swapper/019:54:510
30901499307,12cyclictest36-21ksoftirqd/120:30:011
309013992724,2cyclictest0-21swapper/021:39:560
309013992724,2cyclictest0-21swapper/021:39:560
30901499240,12cyclictest695259-21munin-run23:50:011
309014992320,2cyclictest754763-21grep00:30:021
309014992316,2cyclictest191rcu_preempt23:27:471
309014992316,2cyclictest191rcu_preempt00:34:431
492398220,2rtkit-daemon1247-21mta-sts-daemon20:55:240
31537912211,3phc2sys0-21swapper/321:54:563
309014992216,2cyclictest67250irq/126-eno121:59:471
309014992215,3cyclictest191rcu_preempt22:29:491
309014992214,3cyclictest36-21ksoftirqd/122:35:021
309014992213,4cyclictest36-21ksoftirqd/123:40:031
309013992211,6cyclictest0-21swapper/023:44:470
30901499217,9cyclictest36-21ksoftirqd/121:10:011
309014992118,2cyclictest660-21dbus-daemon23:10:021
309014992118,2cyclictest660-21dbus-daemon21:35:011
309014992115,1cyclictest191rcu_preempt23:00:011
309014992114,2cyclictest36-21ksoftirqd/121:40:011
309014992114,2cyclictest36-21ksoftirqd/121:40:011
30901499210,10cyclictest0-21swapper/120:20:011
309013992110,6cyclictest0-21swapper/000:34:500
309015992018,1cyclictest0-21swapper/222:30:092
30901499204,10cyclictest419026-21kthreadcore20:39:501
309014992017,2cyclictest660-21dbus-daemon22:40:011
309014992016,3cyclictest36-21ksoftirqd/120:10:021
309014992014,2cyclictest191rcu_preempt20:44:531
309014992014,2cyclictest191rcu_preempt20:34:521
309014992014,2cyclictest191rcu_preempt19:14:531
309014992013,3cyclictest741665-21/usr/sbin/munin00:24:451
309014992011,4cyclictest398530-21if_enp1s020:24:481
309014992011,4cyclictest191rcu_preempt20:00:011
30901499201,13cyclictest460232-21apt-get21:14:431
309014992011,3cyclictest191rcu_preempt21:30:021
309014992010,4cyclictest686753-21tr23:44:511
309014992010,1cyclictest191rcu_preempt21:04:551
30901399209,6cyclictest0-21swapper/023:24:430
30901399205,6cyclictest0-21swapper/022:55:010
309013992017,2cyclictest660-21dbus-daemon21:10:010
309013992012,4cyclictest645009-21/usr/sbin/munin23:19:450
309013992010,5cyclictest0-21swapper/000:00:020
3153791190,1phc2sys0-21swapper/322:26:283
30901499199,4cyclictest652877-21expr23:24:451
30901499199,4cyclictest341133-21phc2sys-jitter19:34:541
30901499198,5cyclictest191rcu_preempt19:40:021
30901499197,5cyclictest0-21swapper/100:09:501
30901499196,5cyclictest0-21swapper/120:12:231
30901499192,11cyclictest565567-21tr22:24:511
309014991916,2cyclictest378763-21systemd-run20:05:021
309014991915,1cyclictest191rcu_preempt22:14:421
309014991913,2cyclictest191rcu_preempt00:20:011
309014991911,3cyclictest36-21ksoftirqd/123:55:011
309014991910,2cyclictest672923-21grep23:35:011
309014991910,1cyclictest191rcu_preempt00:13:391
30901499190,9cyclictest593504-21ssh22:44:431
30901499190,11cyclictest361602-21grep19:54:461
30901399199,5cyclictest547164-21systemd22:10:010
30901399198,6cyclictest0-21swapper/021:20:470
309013991916,2cyclictest747388-21grep00:25:020
309013991916,2cyclictest495216-21ssh21:35:000
309013991915,2cyclictest665795-21sh23:30:020
309013991911,4cyclictest658-21avahi-daemon21:20:020
309013991911,2cyclictest601rcuop/321:05:000
309013991910,8cyclictest672461-21mailstats23:34:540
309013991910,5cyclictest336375-21aten_repower_en19:34:450
3153791180,2phc2sys0-21swapper/323:47:133
30901599181,8cyclictest0-21swapper/222:10:012
309015991815,1cyclictest0-21swapper/223:35:012
309015991815,1cyclictest0-21swapper/223:19:472
309015991815,1cyclictest0-21swapper/222:14:472
309015991815,1cyclictest0-21swapper/200:09:442
30901499189,4cyclictest660-21dbus-daemon19:10:011
30901499184,2cyclictest36-21ksoftirqd/121:18:401
309014991815,2cyclictest768892-21mailstats00:39:551
309014991815,2cyclictest613763-21latency_hist22:55:001
309014991815,2cyclictest524990-21cron21:55:011
309014991813,1cyclictest808-21hwrng00:00:241
309014991810,4cyclictest0-21swapper/121:25:001
309014991810,3cyclictest441463-21if_err_enp1s0.820:59:491
309014991810,3cyclictest36-21ksoftirqd/121:44:461
309014991810,3cyclictest36-21ksoftirqd/119:30:021
309014991810,2cyclictest191rcu_preempt23:12:071
30901499180,7cyclictest512175-21ssh21:49:431
30901499180,13cyclictest429056-21tune2fs20:49:481
30901399188,5cyclictest0-21swapper/000:29:550
30901399187,7cyclictest325136-21irqcore19:24:480
309013991815,2cyclictest0-21swapper/019:40:010
309013991812,5cyclictest691428-21kthreadcore23:49:490
309013991810,7cyclictest0-21swapper/021:29:510
3153791170,2phc2sys0-21swapper/323:30:123
3153791170,2phc2sys0-21swapper/323:23:183
3153791170,2phc2sys0-21swapper/323:09:323
3153791170,2phc2sys0-21swapper/321:36:453
3153791170,2phc2sys0-21swapper/321:36:453
3153791170,1phc2sys0-21swapper/322:54:053
3153791170,1phc2sys0-21swapper/300:03:403
30901599171,8cyclictest0-21swapper/219:19:432
309015991715,1cyclictest0-21swapper/221:40:022
309015991715,1cyclictest0-21swapper/221:40:022
309015991715,1cyclictest0-21swapper/200:20:022
309015991714,1cyclictest0-21swapper/223:44:542
309015991714,1cyclictest0-21swapper/223:40:012
309015991714,1cyclictest0-21swapper/221:44:472
309015991714,1cyclictest0-21swapper/221:34:552
309015991714,1cyclictest0-21swapper/221:24:492
309015991714,1cyclictest0-21swapper/220:55:002
309015991714,1cyclictest0-21swapper/220:50:002
309015991714,1cyclictest0-21swapper/220:34:512
309015991714,1cyclictest0-21swapper/219:29:472
309015991714,1cyclictest0-21swapper/219:15:022
309015991714,1cyclictest0-21swapper/200:39:522
309015991714,1cyclictest0-21swapper/200:04:552
309015991713,2cyclictest0-21swapper/222:49:512
309015991713,2cyclictest0-21swapper/222:04:342
30901499179,3cyclictest36-21ksoftirqd/119:15:021
30901499179,1cyclictest191rcu_preempt23:59:461
30901499179,1cyclictest191rcu_preempt22:47:531
30901499177,3cyclictest36-21ksoftirqd/123:19:521
30901499177,3cyclictest356923-21kthreadcore19:49:501
30901499176,6cyclictest36-21ksoftirqd/122:09:511
30901499175,7cyclictest36-21ksoftirqd/122:20:011
30901499175,3cyclictest0-21swapper/119:24:481
309014991713,1cyclictest191rcu_preempt20:54:431
309014991711,1cyclictest67250irq/126-eno122:02:201
30901399179,4cyclictest0-21swapper/023:04:490
30901399172,8cyclictest630633-21grep23:09:460
309013991714,2cyclictest576164-21mailstats22:29:540
309013991714,2cyclictest352982-21kthreadcore19:44:490
309013991714,2cyclictest0-21swapper/021:50:010
309013991714,2cyclictest0-21swapper/019:15:010
5919542160,1sleep20-21swapper/222:40:082
492398160,12rtkit-daemon1242-21mta-sts-daemon20:04:340
3153791160,3phc2sys0-21swapper/300:12:053
309015991613,1cyclictest0-21swapper/223:55:022
309015991613,1cyclictest0-21swapper/223:15:012
309015991613,1cyclictest0-21swapper/223:09:532
309015991613,1cyclictest0-21swapper/222:59:552
309015991613,1cyclictest0-21swapper/222:55:012
309015991613,1cyclictest0-21swapper/222:18:272
309015991613,1cyclictest0-21swapper/221:14:562
309015991613,1cyclictest0-21swapper/220:29:512
309015991613,1cyclictest0-21swapper/220:15:012
309015991613,1cyclictest0-21swapper/200:34:472
309015991613,1cyclictest0-21swapper/200:00:022
309014991612,1cyclictest601rcuop/319:40:391
30901399169,3cyclictest421789-21/usr/sbin/munin20:40:020
30901399166,6cyclictest0-21swapper/023:14:510
30901399163,8cyclictest549909-21irqcore22:14:480
309013991613,2cyclictest727503-21sh00:14:450
309013991613,2cyclictest616943-21kthreadcore22:59:490
309013991613,2cyclictest318743-21gltestperf19:19:470
309013991613,2cyclictest1020-21runrttasks00:37:330
309013991612,3cyclictest698-21in:imuxsock00:05:010
309013991612,3cyclictest1246-21mta-sts-daemon22:04:440
309013991612,2cyclictest0-21swapper/022:20:010
309013991612,2cyclictest0-21swapper/021:55:020
4666412150,2sleep30-21swapper/321:16:503
3153791150,6phc2sys0-21swapper/323:10:283
3153791150,6phc2sys0-21swapper/320:24:433
3153791150,3phc2sys0-21swapper/300:06:483
3153791150,2phc2sys0-21swapper/322:37:383
3153791150,2phc2sys0-21swapper/300:32:503
3153791150,2phc2sys0-21swapper/300:26:343
3153791150,1phc2sys0-21swapper/323:37:313
30901599151,7cyclictest0-21swapper/220:19:442
30901599151,4cyclictest0-21swapper/222:00:012
309015991513,1cyclictest0-21swapper/223:22:192
309015991513,1cyclictest0-21swapper/222:30:022
309015991513,1cyclictest0-21swapper/221:47:322
309015991513,1cyclictest0-21swapper/221:20:022
309015991512,1cyclictest0-21swapper/223:49:542
309015991512,1cyclictest0-21swapper/223:29:462
309015991512,1cyclictest0-21swapper/220:02:082
309015991512,1cyclictest0-21swapper/219:59:472
309015991512,1cyclictest0-21swapper/200:14:492
309015991511,2cyclictest0-21swapper/219:49:132
309015991510,2cyclictest0-21swapper/219:32:472
30901399151,9cyclictest384599-21latency_hist20:10:010
309013991512,2cyclictest720543-21sed00:09:490
309013991512,2cyclictest701381-21kthreadcore23:54:510
309013991512,2cyclictest658-21avahi-daemon22:25:020
309013991512,2cyclictest503010-21packagekitd21:44:320
309013991512,2cyclictest309011-21cyclictest20:47:160
309013991512,2cyclictest1237-21mta-sts-daemon21:56:440
309013991512,2cyclictest0-21swapper/021:15:010
309013991512,2cyclictest0-21swapper/020:30:020
309013991510,4cyclictest4915-21sendmail-mta20:17:550
4037122140,2sleep30-21swapper/320:29:083
3153791140,2phc2sys0-21swapper/323:01:233
3153791140,2phc2sys0-21swapper/322:09:373
3153791140,2phc2sys0-21swapper/321:14:263
30901599147,2cyclictest0-21swapper/219:44:412
30901599144,5cyclictest0-21swapper/221:04:432
30901599141,6cyclictest0-21swapper/220:59:442
309015991411,1cyclictest0-21swapper/223:00:512
309015991411,1cyclictest0-21swapper/222:39:462
309015991411,1cyclictest0-21swapper/221:07:042
309015991411,1cyclictest0-21swapper/220:20:432
309015991411,1cyclictest0-21swapper/220:09:502
309015991411,1cyclictest0-21swapper/219:54:502
309015991410,2cyclictest0-21swapper/200:29:372
30901399149,4cyclictest1242-21mta-sts-daemon19:59:400
30901399144,6cyclictest0-21swapper/020:31:470
30901399142,7cyclictest586174-21tail22:39:440
30901399141,7cyclictest734352-21apt-get00:19:430
309013991412,1cyclictest1247-21mta-sts-daemon19:49:460
309013991412,1cyclictest0-21swapper/020:55:000
309013991411,2cyclictest677930-21kthreadcore23:39:510
309013991411,2cyclictest601208-21cpuspeed_turbos22:49:450
309013991411,2cyclictest385633-21cstates20:14:440
309013991411,2cyclictest1242-21mta-sts-daemon22:41:200
309013991410,3cyclictest1242-21mta-sts-daemon22:31:490
3153791130,4phc2sys0-21swapper/323:25:583
3153791130,3phc2sys0-21swapper/319:44:413
3153791130,3phc2sys0-21swapper/319:25:503
3153791130,2phc2sys0-21swapper/323:42:123
3153791130,2phc2sys0-21swapper/322:30:393
3153791130,2phc2sys0-21swapper/322:23:563
3153791130,2phc2sys0-21swapper/322:11:173
3153791130,2phc2sys0-21swapper/319:35:123
3153791130,2phc2sys0-21swapper/319:19:533
30901599131,4cyclictest0-21swapper/219:40:012
309015991311,1cyclictest0-21swapper/200:24:532
309015991310,1cyclictest0-21swapper/222:24:512
309015991310,1cyclictest0-21swapper/221:50:442
309015991310,1cyclictest0-21swapper/221:29:512
309015991310,1cyclictest0-21swapper/220:38:472
309015991310,1cyclictest0-21swapper/219:24:482
309013991310,2cyclictest398370-21fschecks_time20:24:470
309013991310,2cyclictest330970-21gltestperf19:29:470
492398120,8rtkit-daemon1247-21mta-sts-daemon20:41:330
3153791120,3phc2sys0-21swapper/320:58:243
3153791120,2phc2sys0-21swapper/321:56:103
309015991210,1cyclictest0-21swapper/220:44:502
3153791112,2phc2sys0-21swapper/321:32:063
3153791111,2phc2sys0-21swapper/320:04:563
3153791110,2phc2sys0-21swapper/323:56:353
3153791110,2phc2sys0-21swapper/323:16:343
3153791110,2phc2sys0-21swapper/321:42:523
3153791110,2phc2sys0-21swapper/300:25:003
3153791110,2phc2sys0-21swapper/300:18:193
3153791110,1phc2sys0-21swapper/320:49:053
3153791110,1phc2sys0-21swapper/320:42:283
3153791110,1phc2sys0-21swapper/320:36:343
3153791110,1phc2sys0-21swapper/319:55:353
3153791110,1phc2sys0-21swapper/319:23:173
30901399119,1cyclictest0-21swapper/019:10:010
3153791103,3phc2sys0-21swapper/300:37:583
3153791102,2phc2sys0-21swapper/322:59:423
3153791101,2phc2sys0-21swapper/321:04:523
3153791101,2phc2sys0-21swapper/320:34:503
3153791101,2phc2sys0-21swapper/319:14:483
3153791100,5phc2sys606384-21turbostat22:50:003
3153791100,2phc2sys0-21swapper/322:41:193
3153791100,2phc2sys0-21swapper/322:16:263
3153791100,2phc2sys0-21swapper/322:01:033
3153791100,2phc2sys0-21swapper/321:46:003
3153791100,2phc2sys0-21swapper/321:28:573
3153791100,2phc2sys0-21swapper/321:20:553
3153791100,2phc2sys0-21swapper/320:53:193
3153791100,2phc2sys0-21swapper/320:19:513
3153791100,2phc2sys0-21swapper/320:14:433
3153791100,2phc2sys0-21swapper/319:07:473
3153791100,1phc2sys0-21swapper/319:45:483
30901599101,4cyclictest0-21swapper/219:10:012
315379190,2phc2sys0-21swapper/323:50:093
315379190,2phc2sys0-21swapper/321:09:533
315379190,2phc2sys0-21swapper/320:09:463
315379190,2phc2sys0-21swapper/319:54:563
315379190,2phc2sys0-21swapper/319:30:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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