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2026-07-07 - 22:04
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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 376 highest latencies:
System rackeslot2.osadl.org (updated Tue Jul 07, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
348115821600,2sleep30-21swapper/312:14:493
346125321010,2sleep30-21swapper/311:59:503
31636372990,2sleep30-21swapper/308:34:453
31216512920,2sleep30-21swapper/307:59:473
3062540992616,3cyclictest0-21swapper/109:10:021
3062540992612,4cyclictest0-21swapper/112:04:481
3062539992618,7cyclictest3354429-21cstates10:49:420
31978182250,4sleep13196205-21kthreadcore08:59:481
3062540992515,2cyclictest0-21swapper/110:40:021
3062540992421,2cyclictest3433322-21idleruntime-cro11:40:001
3062541992320,1cyclictest0-21swapper/207:20:012
3062540992320,2cyclictest3381968-21grep11:05:031
3062539992315,7cyclictest3272895-21cstates09:54:420
306254099229,3cyclictest0-21swapper/109:20:011
3062539992219,2cyclictest660-21dbus-daemon11:20:020
3062539992219,2cyclictest3233141-21apt-get09:25:030
3062539992213,5cyclictest3430777-21kthreadcore11:39:480
3062541992118,1cyclictest0-21swapper/210:10:012
306254099214,5cyclictest660-21dbus-daemon10:10:021
3062540992118,2cyclictest3514591-21systemd12:35:011
3062540992118,2cyclictest3233342-21latency_hist09:25:011
3062539992114,6cyclictest3331219-21runrttasks10:33:320
3062539992114,6cyclictest0-21swapper/009:30:020
3062539992113,7cyclictest3083725-21aten2.4-expect07:29:440
3062539992112,8cyclictest3491752-21pmu-power12:19:520
3062539992110,7cyclictest3248418-21ls09:35:010
3062541992018,1cyclictest0-21swapper/207:25:022
3062541992017,1cyclictest0-21swapper/212:40:022
3062541992017,1cyclictest0-21swapper/209:40:012
3062541992017,1cyclictest0-21swapper/208:29:552
3062540992017,2cyclictest660-21dbus-daemon09:29:531
3062540992017,2cyclictest0-21swapper/112:40:031
3062540992015,3cyclictest3453215-21kthreadcore11:54:481
3062540992010,2cyclictest67250irq/126-eno111:59:501
306253999209,6cyclictest0-21swapper/009:10:020
3062539992017,2cyclictest3263274-21latency_hist09:45:010
3062539992015,3cyclictest0-21swapper/008:30:020
3062539992014,5cyclictest3446647-21kthreadcore11:49:490
3062539992012,7cyclictest3175338-21aten2.4-expect08:44:420
3062539992011,7cyclictest0-21swapper/011:00:020
3062539992011,5cyclictest3494262-21acpi12:24:390
3062539992010,4cyclictest0-21swapper/012:34:520
3153791190,2phc2sys0-21swapper/309:34:303
3153791190,2phc2sys0-21swapper/309:17:393
3062541991917,1cyclictest0-21swapper/209:44:482
3062541991916,1cyclictest0-21swapper/209:54:482
3062541991916,1cyclictest0-21swapper/209:10:032
3062541991916,1cyclictest0-21swapper/208:35:002
3062541991916,1cyclictest0-21swapper/207:45:012
3062541991914,3cyclictest0-21swapper/208:14:392
306254099198,3cyclictest0-21swapper/110:04:571
3062540991916,2cyclictest693-21systemd-logind09:40:011
3062540991916,2cyclictest3411326-21systemd11:25:021
3062540991916,2cyclictest0-21swapper/107:15:011
306253999199,6cyclictest3308506-21sh10:16:500
306253999197,8cyclictest3516401-21/usr/sbin/munin12:39:530
306253999196,6cyclictest3437005-21kthreadcore11:44:470
306253999194,13cyclictest3449946-21apt-get11:54:410
306253999194,10cyclictest3062537-21cyclictest10:07:320
3062539991915,3cyclictest3937-21cron07:34:560
3062539991914,4cyclictest3063394-21cpuspeed_turbos07:14:430
3062539991914,1cyclictest191rcu_preempt11:31:250
3062539991913,2cyclictest492398rtkit-daemon11:09:020
3062539991913,2cyclictest492398rtkit-daemon11:09:020
3062539991912,6cyclictest3187465-21aten2.4-expect08:54:410
3062539991912,6cyclictest1247-21mta-sts-daemon11:20:380
3062539991912,6cyclictest0-21swapper/010:29:500
3062539991911,4cyclictest0-21swapper/009:15:030
3062539991911,2cyclictest1020-21runrttasks10:51:490
3062539991910,5cyclictest0-21swapper/012:29:490
3062539991910,5cyclictest0-21swapper/012:29:490
33058762180,2sleep30-21swapper/310:14:493
3153791180,3phc2sys0-21swapper/312:02:563
3153791180,2phc2sys0-21swapper/312:06:493
3153791180,2phc2sys0-21swapper/311:14:433
3153791180,2phc2sys0-21swapper/308:24:533
3153791180,2phc2sys0-21swapper/307:49:453
3062541991815,1cyclictest0-21swapper/212:35:022
3062541991815,1cyclictest0-21swapper/210:19:412
306254199181,11cyclictest0-21swapper/208:40:012
306254099189,1cyclictest492398rtkit-daemon07:38:551
3062540991815,2cyclictest3499825-21sh12:25:011
3062540991815,2cyclictest3309822-21tr10:19:431
3062540991815,2cyclictest3155897-21apt-key08:25:001
3062540991814,2cyclictest67250irq/126-eno108:04:481
3062540991813,1cyclictest492398rtkit-daemon07:18:151
306253999189,6cyclictest3459610-21kthreadcore11:59:490
306253999187,7cyclictest3252692-21ssh09:39:480
3062539991816,1cyclictest765-1atopacctd07:15:030
3062539991815,2cyclictest660-21dbus-daemon11:15:010
3062539991815,2cyclictest3482293-21kthreadcore12:14:500
3062539991815,2cyclictest3414377-21kthreadcore11:29:480
3062539991815,2cyclictest3319710-21kthreadcore10:24:480
3062539991815,2cyclictest3288631-21kthreadcore10:04:480
3062539991815,2cyclictest3170448-21kthreadcore08:39:480
3062539991815,2cyclictest3164106-21kthreadcore08:34:480
3062539991815,2cyclictest3147114-21kthreadcore08:19:500
3062539991815,2cyclictest3110746-21kthreadcore07:49:470
3062539991814,3cyclictest3138993-21gltestperf08:14:430
3062539991813,1cyclictest67250irq/126-eno112:00:280
3062539991811,6cyclictest0-21swapper/009:59:480
3062539991810,7cyclictest0-21swapper/009:14:430
306253999180,4cyclictest491rcuog/211:01:140
3153791171,4phc2sys0-21swapper/308:59:403
3153791170,2phc2sys0-21swapper/311:02:363
3062541991714,1cyclictest0-21swapper/211:45:002
3062541991714,1cyclictest0-21swapper/211:30:012
3062541991714,1cyclictest0-21swapper/211:10:502
3062541991714,1cyclictest0-21swapper/211:00:012
3062541991714,1cyclictest0-21swapper/208:19:542
3062541991714,1cyclictest0-21swapper/208:00:012
3062541991714,1cyclictest0-21swapper/207:54:482
3062541991713,2cyclictest0-21swapper/210:24:482
3062541991713,2cyclictest0-21swapper/209:30:242
3062541991713,2cyclictest0-21swapper/209:02:122
3062541991712,2cyclictest0-21swapper/211:32:242
306254099179,2cyclictest67250irq/126-eno110:59:051
306254099178,2cyclictest3476905-21grep12:09:501
306254099176,2cyclictest67250irq/126-eno110:44:541
3062540991714,2cyclictest765-1atopacctd07:24:471
3062540991714,2cyclictest693-21systemd-logind09:15:011
3062540991714,2cyclictest3243267-21grep09:34:441
3062540991714,2cyclictest0-21swapper/111:45:011
3062540991714,2cyclictest0-21swapper/111:20:031
3062540991712,3cyclictest3425426-21ssh11:34:511
306253999179,4cyclictest3126210-21aten2.4-expect08:04:420
306253999178,5cyclictest3269481-21tr09:49:500
306253999176,7cyclictest3347315-21cut10:44:440
306253999174,7cyclictest3306984-21pmu-power10:14:510
3062539991715,1cyclictest3082890-21cron07:25:010
3062539991714,2cyclictest3184100-21kthreadcore08:49:490
3062539991714,2cyclictest3151699-21kthreadcore08:24:480
3062539991714,2cyclictest3133516-21kthreadcore08:09:470
3062539991714,2cyclictest3115311-21kthreadcore07:54:470
3062539991714,2cyclictest0-21swapper/007:40:020
3062539991713,3cyclictest3204400-21taskset09:04:520
3062539991713,3cyclictest3107088-21timerwakeupswit07:44:550
306254199168,5cyclictest3089554-21chrt07:33:012
3062541991614,1cyclictest0-21swapper/209:15:012
3062541991613,1cyclictest0-21swapper/211:55:292
3062541991613,1cyclictest0-21swapper/211:39:392
3062541991613,1cyclictest0-21swapper/210:39:442
3062541991613,1cyclictest0-21swapper/210:26:142
3062541991613,1cyclictest0-21swapper/209:17:552
3062541991613,1cyclictest0-21swapper/209:00:002
3062541991613,1cyclictest0-21swapper/208:52:352
3062541991613,1cyclictest0-21swapper/208:23:142
3062541991613,1cyclictest0-21swapper/207:39:432
3062541991612,2cyclictest0-21swapper/212:26:252
3062541991612,2cyclictest0-21swapper/212:26:252
3062541991612,2cyclictest0-21swapper/212:11:472
3062541991612,2cyclictest0-21swapper/212:09:402
3062541991612,2cyclictest0-21swapper/211:51:492
3062541991612,2cyclictest0-21swapper/210:54:522
3062541991612,1cyclictest0-21swapper/211:45:192
3062541991611,2cyclictest0-21swapper/211:04:502
306254099167,2cyclictest67250irq/126-eno109:56:211
306254099164,6cyclictest3354194-21aten2.4-expect10:49:411
306254099164,4cyclictest3329869-21cat10:30:011
306254099164,4cyclictest3132054-21sshd08:07:561
306254099162,5cyclictest3417718-21grep11:29:501
306254099162,4cyclictest3169243-21aten2.4-expect08:39:421
306254099161,7cyclictest3366556-21python310:54:541
3062540991613,2cyclictest693-21systemd-logind08:00:031
3062540991613,2cyclictest3501922-21cpuspeed_turbos12:29:431
3062540991613,2cyclictest3501922-21cpuspeed_turbos12:29:431
3062540991613,2cyclictest3482293-21kthreadcore12:14:501
3062540991613,2cyclictest3322488-21systemd10:25:011
3062540991613,2cyclictest3187916-21fschecks_count08:54:441
3062540991613,2cyclictest3062537-21cyclictest08:49:511
3062540991611,3cyclictest3392044-21irqcore11:14:481
3062540991611,2cyclictest3307461-21unixbench_multi10:14:551
306254099160,8cyclictest3389192-21latency_hist11:10:021
306254099160,8cyclictest3389192-21latency_hist11:10:021
3062539991613,2cyclictest3338320-21sh10:36:540
3062539991613,2cyclictest3121388-21kthreadcore07:59:470
3062539991613,2cyclictest1-21systemd08:57:560
306253999160,5cyclictest3471092-21ssh12:06:470
31537911510,2phc2sys0-21swapper/307:09:483
3153791150,4phc2sys0-21swapper/309:04:413
3153791150,2phc2sys0-21swapper/312:30:393
3153791150,2phc2sys0-21swapper/307:20:033
3062541991513,1cyclictest0-21swapper/212:15:382
3062541991513,1cyclictest0-21swapper/211:19:422
3062541991513,1cyclictest0-21swapper/207:15:022
3062541991512,2cyclictest0-21swapper/208:06:392
3062541991512,1cyclictest0-21swapper/212:21:332
3062541991512,1cyclictest0-21swapper/210:13:092
3062541991512,1cyclictest0-21swapper/210:04:402
3062541991512,1cyclictest0-21swapper/209:29:422
306254099159,4cyclictest3335330-21kthreadcore10:34:491
306254099158,2cyclictest67250irq/126-eno109:50:451
306254099157,1cyclictest67250irq/126-eno112:19:421
306254099155,2cyclictest3108761-21basename07:49:431
306254099151,3cyclictest3107302-21latency_hist07:45:021
3062540991512,2cyclictest765-1atopacctd09:45:011
3062540991512,2cyclictest1246-21mta-sts-daemon08:44:541
3153791140,3phc2sys0-21swapper/312:24:403
3153791140,3phc2sys0-21swapper/311:25:183
3153791140,3phc2sys0-21swapper/309:39:483
3153791140,2phc2sys0-21swapper/312:39:433
3153791140,2phc2sys0-21swapper/311:51:523
3153791140,2phc2sys0-21swapper/311:46:293
3153791140,2phc2sys0-21swapper/310:31:413
3153791140,1phc2sys0-21swapper/310:28:093
3153791140,1phc2sys0-21swapper/309:56:183
306254199141,5cyclictest0-21swapper/207:30:012
3062541991412,1cyclictest0-21swapper/210:46:492
3062541991412,1cyclictest0-21swapper/210:44:422
3062541991412,1cyclictest0-21swapper/210:31:162
3062541991412,1cyclictest0-21swapper/209:59:482
3062541991411,1cyclictest0-21swapper/212:04:142
3062541991411,1cyclictest0-21swapper/208:46:112
3062541991411,1cyclictest0-21swapper/208:40:062
3062541991411,1cyclictest0-21swapper/208:04:482
3062541991411,1cyclictest0-21swapper/207:47:152
306254099149,2cyclictest1247-21mta-sts-daemon11:46:011
306254099146,2cyclictest67250irq/126-eno109:45:341
306254099141,3cyclictest3062384-21latency_hist07:10:031
3062540991411,2cyclictest3200790-21kthreadcore09:04:471
3062540991411,2cyclictest3115384-21kthreadcore07:54:471
3062540991411,2cyclictest3086404-21kthreadcore07:29:511
3062540991410,3cyclictest3168136-21unixbench_singl08:34:551
3062540991410,3cyclictest3147230-21kthreadcore08:19:501
3062540991410,3cyclictest1247-21mta-sts-daemon07:34:471
3153791130,2phc2sys0-21swapper/311:16:243
3153791130,2phc2sys0-21swapper/310:41:273
3153791130,2phc2sys0-21swapper/310:36:413
3153791130,2phc2sys0-21swapper/309:51:353
3153791130,2phc2sys0-21swapper/309:45:433
3153791130,2phc2sys0-21swapper/309:28:373
3153791130,2phc2sys0-21swapper/308:51:333
3153791130,2phc2sys0-21swapper/308:44:493
3153791130,1phc2sys0-21swapper/311:42:243
3062541991311,1cyclictest0-21swapper/211:21:182
3062541991311,1cyclictest0-21swapper/211:05:502
3062541991311,1cyclictest0-21swapper/211:05:502
3062541991311,1cyclictest0-21swapper/209:45:142
3062541991311,1cyclictest0-21swapper/209:20:582
3062540991310,2cyclictest3156836-21aten_repower_fr08:29:431
3153791121,3phc2sys0-21swapper/310:09:413
3153791121,3phc2sys0-21swapper/307:29:433
3153791121,1phc2sys0-21swapper/307:35:003
3153791120,3phc2sys0-21swapper/310:54:403
3153791120,2phc2sys0-21swapper/310:22:073
3153791120,2phc2sys0-21swapper/308:49:223
3153791120,2phc2sys0-21swapper/308:18:533
3153791120,1phc2sys0-21swapper/312:26:243
3153791120,1phc2sys0-21swapper/312:26:243
3153791120,1phc2sys0-21swapper/307:16:573
306254199129,1cyclictest0-21swapper/207:10:022
306254099129,2cyclictest0-21swapper/108:14:441
306253999129,2cyclictest0-21swapper/007:10:020
3153791111,4phc2sys0-21swapper/307:43:333
3153791111,2phc2sys0-21swapper/310:04:403
3153791111,2phc2sys0-21swapper/307:14:483
3153791110,3phc2sys0-21swapper/307:39:493
3153791110,2phc2sys0-21swapper/310:49:413
3153791110,2phc2sys0-21swapper/309:44:043
3153791110,2phc2sys0-21swapper/309:24:443
3153791110,1phc2sys0-21swapper/307:51:313
3153791102,2phc2sys0-21swapper/311:05:493
3153791102,2phc2sys0-21swapper/311:05:493
3153791101,2phc2sys0-21swapper/311:39:393
3153791101,2phc2sys0-21swapper/310:15:583
3153791101,2phc2sys0-21swapper/308:14:393
3153791101,2phc2sys0-21swapper/308:09:473
3153791100,2phc2sys0-21swapper/312:17:113
3153791100,2phc2sys0-21swapper/311:21:243
3153791100,2phc2sys0-21swapper/310:55:553
3153791100,2phc2sys0-21swapper/309:11:183
3153791100,2phc2sys0-21swapper/308:36:343
315379191,2phc2sys0-21swapper/308:28:503
315379190,2phc2sys0-21swapper/311:30:143
315379190,2phc2sys0-21swapper/308:05:023
315379190,1phc2sys0-21swapper/309:06:313
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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