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2026-06-03 - 06:27
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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 Wed Jun 03, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71552221100,2sleep30-21swapper/320:55:003
9848132690,1sleep0984811-21ssh23:58:160
7663752690,1sleep0766373-21ssh21:33:530
8795992440,1sleep00-21swapper/022:48:040
598557992421,1cyclictest0-21swapper/200:40:012
598550992413,6cyclictest0-21swapper/021:55:010
598550992413,6cyclictest0-21swapper/021:55:010
8419892230,1sleep00-21swapper/022:23:190
598550992319,2cyclictest840818-21grep22:20:010
598553992219,2cyclictest1290-21dbus-daemon00:20:011
598550992219,2cyclictest1290-21dbus-daemon22:15:010
598557992118,1cyclictest0-21swapper/222:05:012
598553992118,2cyclictest646723-21dump-pmu-power20:00:001
598550992118,2cyclictest599490-21systemd19:15:020
598550992118,2cyclictest1036533-21grep00:30:010
598557992017,1cyclictest0-21swapper/220:00:002
598553992017,2cyclictest855632-21cron22:30:001
598553992017,2cyclictest1-21systemd23:35:011
59855099208,3cyclictest3851705-21mta-sts-daemon23:20:070
598550992017,2cyclictest3851702-21mta-sts-daemon23:44:460
598550992017,2cyclictest1296-21polkitd19:25:020
598550992010,5cyclictest3851702-21mta-sts-daemon00:39:050
2649091200,2phc2sys0-21swapper/323:25:003
598557991916,1cyclictest0-21swapper/219:15:002
598557991916,1cyclictest0-21swapper/200:29:472
598557991915,2cyclictest0-21swapper/221:39:452
598553991916,2cyclictest968415-21ssh23:45:001
598553991916,2cyclictest865792-21sh22:39:441
598553991916,2cyclictest794935-21cron21:50:001
598553991916,2cyclictest640524-21cut19:55:011
598553991916,2cyclictest3824500-21cron19:50:001
598553991916,2cyclictest0-21swapper/122:10:001
598553991916,2cyclictest0-21swapper/122:10:001
598553991911,3cyclictest858251-21/usr/sbin/munin22:34:441
598553991911,3cyclictest0-21swapper/123:37:171
59855099199,6cyclictest0-21swapper/023:34:380
59855099197,6cyclictest0-21swapper/021:14:410
598550991916,2cyclictest923621-21sh23:15:020
598550991914,3cyclictest0-21swapper/021:59:440
598550991912,6cyclictest781167-21runrttasks21:43:020
598550991911,4cyclictest0-21swapper/023:00:020
2649191190,2ptp4l0-21swapper/322:04:413
2649091191,7phc2sys0-21swapper/300:18:523
2649091190,2phc2sys0-21swapper/323:39:313
598557991816,1cyclictest0-21swapper/221:20:032
598557991815,1cyclictest0-21swapper/219:45:002
598553991815,2cyclictest696760-21latency_hist20:40:001
598553991815,2cyclictest1013865-21/usr/sbin/munin00:15:011
59855099189,5cyclictest925973-21idleruntime23:19:450
598550991815,2cyclictest983697-21latency_hist23:55:010
598550991815,2cyclictest0-21swapper/021:30:020
598550991815,2cyclictest0-21swapper/021:30:020
598550991810,7cyclictest0-21swapper/022:29:450
59855099180,5cyclictest0-21swapper/021:38:450
598557991715,1cyclictest0-21swapper/222:10:022
598557991715,1cyclictest0-21swapper/222:10:012
598557991715,1cyclictest0-21swapper/221:25:002
598557991715,1cyclictest0-21swapper/220:55:002
598557991714,1cyclictest0-21swapper/223:19:522
598557991714,1cyclictest0-21swapper/222:44:532
598557991713,2cyclictest0-21swapper/223:05:022
598557991711,2cyclictest0-21swapper/200:05:002
59855799170,14cyclictest848384-21chrt22:25:012
59855799170,14cyclictest621724-21chrt19:39:572
59855399179,3cyclictest0-21swapper/122:59:401
598553991714,2cyclictest983487-21cut23:55:001
598553991714,2cyclictest880230-21aten_repower_fr22:49:411
598553991714,2cyclictest3851702-21mta-sts-daemon19:33:091
598553991714,2cyclictest0-21swapper/123:30:001
598553991714,2cyclictest0-21swapper/122:20:001
598553991713,3cyclictest1041263-21kthreadcore00:34:491
59855099177,5cyclictest0-21swapper/021:49:460
598550991714,2cyclictest665501-21sh20:15:000
598550991714,2cyclictest607867-21systemd-run19:20:000
598550991714,2cyclictest1290-21dbus-daemon22:55:010
598550991714,2cyclictest1024559-21irqstats00:24:460
598550991714,2cyclictest1007885-21/usr/sbin/munin00:14:530
598550991712,2cyclictest3851703-21mta-sts-daemon21:16:170
598550991710,4cyclictest734688-21kworker/u16:1+nfsiod22:00:170
2649091170,4phc2sys0-21swapper/321:22:553
2649091170,2phc2sys0-21swapper/323:30:213
2649091170,2phc2sys0-21swapper/323:09:333
2649091170,2phc2sys0-21swapper/321:18:463
2649091170,2phc2sys0-21swapper/320:15:013
2649091170,2phc2sys0-21swapper/300:39:403
598557991614,1cyclictest0-21swapper/220:20:012
598557991614,1cyclictest0-21swapper/219:25:012
598557991613,1cyclictest0-21swapper/223:41:592
598557991613,1cyclictest0-21swapper/221:58:382
598557991613,1cyclictest0-21swapper/220:14:452
598557991612,2cyclictest0-21swapper/223:54:422
59855799161,11cyclictest0-21swapper/223:40:012
59855799160,14cyclictest742040-21chrt21:14:592
59855799160,13cyclictest975831-21chrt23:49:552
59855799160,13cyclictest953437-21chrt23:35:002
59855799160,13cyclictest923310-21chrt23:14:562
59855799160,13cyclictest780216-21taskset21:40:042
59855799160,13cyclictest734795-21chrt21:10:032
59855799160,13cyclictest703005-21chrt20:44:572
59855799160,13cyclictest690506-21taskset20:34:552
59855799160,13cyclictest678013-21chrt20:24:572
59855799160,13cyclictest614791-21chrt19:29:592
59855799160,13cyclictest1036753-21taskset00:30:032
59855399168,3cyclictest0-21swapper/122:14:481
598553991613,2cyclictest805340-21cut21:59:461
598553991613,2cyclictest684387-21systemd-run20:30:001
598553991613,2cyclictest599292-21cpuspeed19:15:011
598553991613,2cyclictest3834332-21rtkit-daemon00:00:161
598553991613,2cyclictest3827634-1atopacctd19:40:021
598553991613,2cyclictest0-21swapper/120:14:591
598553991613,2cyclictest0-21swapper/100:25:001
598553991612,3cyclictest3851702-21mta-sts-daemon00:29:331
598553991612,2cyclictest0-21swapper/120:25:011
598553991611,3cyclictest0-21swapper/100:10:021
598553991610,2cyclictest134050irq/121-eno121:19:421
59855099169,6cyclictest3827634-1atopacctd21:09:420
59855099169,6cyclictest0-21swapper/021:24:480
59855099169,3cyclictest699559-21cut20:44:480
59855099168,4cyclictest2845942-21sshd20:37:560
59855099168,4cyclictest0-21swapper/023:40:000
59855099166,6cyclictest0-21swapper/023:06:400
59855099165,6cyclictest0-21swapper/000:19:430
598550991613,2cyclictest941023-21if_enp1s023:29:450
598550991613,2cyclictest710817-21irqcore20:54:430
598550991613,2cyclictest690540-21wc20:35:000
598550991613,2cyclictest3851703-21mta-sts-daemon00:09:490
598550991613,2cyclictest1-21systemd23:45:570
598550991613,2cyclictest1-21systemd22:39:550
598550991613,2cyclictest1038601-21tr00:34:420
598550991610,5cyclictest3851705-21mta-sts-daemon22:33:060
2649091160,2phc2sys0-21swapper/323:44:423
2649091160,2phc2sys0-21swapper/322:30:023
59855799152,8cyclictest0-21swapper/219:50:012
598557991513,1cyclictest0-21swapper/221:34:432
598557991512,2cyclictest0-21swapper/222:38:442
598557991512,1cyclictest0-21swapper/223:25:172
598557991512,1cyclictest0-21swapper/223:24:442
598557991512,1cyclictest0-21swapper/223:00:002
598557991512,1cyclictest0-21swapper/222:49:442
59855799150,12cyclictest886131-21chrt22:50:022
59855799150,12cyclictest833424-21chrt22:15:032
59855799150,12cyclictest794920-21chrt21:49:582
59855799150,12cyclictest764089-21taskset21:29:582
59855799150,12cyclictest764089-21taskset21:29:582
59855799150,12cyclictest690827-21chrt20:35:032
59855799150,12cyclictest615104-21chrt19:30:032
59855799150,12cyclictest10213552chrt00:19:572
59855799150,12cyclictest1013468-21taskset00:14:562
59855399158,3cyclictest697629-21tail20:44:421
59855399157,4cyclictest598461-21kworker/u16:2+nfsiod21:42:291
59855399157,3cyclictest0-21swapper/121:29:511
59855399157,3cyclictest0-21swapper/121:29:511
598553991513,1cyclictest3851705-21mta-sts-daemon23:09:551
598553991512,2cyclictest976002-21sh23:50:001
598553991512,2cyclictest933487-21head23:24:441
598553991512,2cyclictest920596-21kthreadcore23:14:461
598553991512,2cyclictest765074-21sed21:30:031
598553991512,2cyclictest687846-21kthreadcore20:34:481
598553991512,2cyclictest0-21swapper/123:59:511
598553991512,2cyclictest0-21swapper/123:05:021
598553991511,3cyclictest817363-21unixbench-2d22:04:561
598553991511,3cyclictest716747-21cpuspeed_turbos20:59:441
598553991511,3cyclictest648717-21kthreadcore20:04:501
59855399151,13cyclictest1045879-21apt-get00:39:411
598553991511,2cyclictest0-21swapper/120:50:021
59855099159,4cyclictest1290-21dbus-daemon20:50:000
59855099158,6cyclictest0-21swapper/022:09:430
59855099158,6cyclictest0-21swapper/022:09:430
59855099157,4cyclictest0-21swapper/020:59:480
598550991512,2cyclictest615594-21cut19:35:010
598550991512,2cyclictest3834328-21sendmail-mta22:57:470
598550991511,3cyclictest870858-21kworker/u16:3+nfsiod00:03:320
598550991511,3cyclictest680154-21kthreadcore20:29:480
383433398150,6rtkit-daemon3851705-21mta-sts-daemon22:43:080
598557991412,1cyclictest0-21swapper/222:26:202
598557991411,1cyclictest0-21swapper/223:55:182
598557991411,1cyclictest0-21swapper/223:08:022
598557991411,1cyclictest0-21swapper/222:34:292
598557991411,1cyclictest0-21swapper/221:50:402
598557991411,1cyclictest0-21swapper/221:50:402
598557991411,1cyclictest0-21swapper/221:00:002
598557991411,1cyclictest0-21swapper/220:04:552
598557991411,1cyclictest0-21swapper/200:24:492
59855799140,12cyclictest833069-21chrt22:14:552
59855799140,12cyclictest7092442chrt20:49:582
59855799140,11cyclictest998854-21chrt00:05:022
59855799140,11cyclictest722331-21chrt21:00:042
59855799140,11cyclictest659235-21chrt20:09:582
59855799140,11cyclictest634533-21chrt19:50:042
59855799140,11cyclictest601818-21chrt19:15:042
59855399149,4cyclictest3851703-21mta-sts-daemon21:22:091
59855399148,5cyclictest3851705-21mta-sts-daemon21:52:031
59855399148,5cyclictest3851705-21mta-sts-daemon21:52:021
59855399148,5cyclictest3834332-21rtkit-daemon19:24:521
59855399147,3cyclictest0-21swapper/119:44:421
59855399145,4cyclictest0-21swapper/122:53:141
59855399141,4cyclictest774201-21ssh21:39:391
598553991411,2cyclictest873586-21irqcore22:44:461
598553991411,2cyclictest848158-21cron22:25:001
598553991411,2cyclictest710210-21cut20:54:401
598553991411,2cyclictest3851704-21mta-sts-daemon21:07:451
598553991411,2cyclictest3851704-21mta-sts-daemon21:04:461
598553991410,3cyclictest605096-21kthreadcore19:19:431
59855399140,1cyclictest0-21swapper/120:09:391
59855099145,4cyclictest609173-21/usr/sbin/munin19:29:370
598550991411,2cyclictest722803-21aten_repower_fr21:04:410
598550991411,2cyclictest676553-21kthreadcore20:24:470
598550991411,2cyclictest641192-21aten_repower_cu19:59:410
598550991411,2cyclictest629317-21fschecks_time19:49:420
598550991411,2cyclictest623744-21kthreadcore19:44:470
598550991411,2cyclictest617481-21kthreadcore19:39:430
598550991411,2cyclictest598727-21sh19:10:020
598550991410,3cyclictest669004-21kthreadcore20:19:470
59855099140,6cyclictest2840498-21systemd-journal20:08:270
383433398140,3rtkit-daemon3851702-21mta-sts-daemon20:01:240
2649091143,2phc2sys0-21swapper/323:58:523
2649091140,2phc2sys0-21swapper/322:31:173
2649091140,2phc2sys0-21swapper/322:06:503
2649091140,2phc2sys0-21swapper/322:06:503
2649091140,2phc2sys0-21swapper/300:04:053
2649091140,1phc2sys0-21swapper/322:18:263
598557991311,1cyclictest0-21swapper/220:29:472
59855399138,4cyclictest3851705-21mta-sts-daemon21:11:451
59855399138,4cyclictest3851702-21mta-sts-daemon20:15:351
59855399137,5cyclictest3851705-21mta-sts-daemon19:25:031
59855399130,3cyclictest0-21swapper/123:15:531
598550991310,2cyclictest637182-21kthreadcore19:54:480
2649091135,2phc2sys0-21swapper/321:49:533
2649091130,2phc2sys0-21swapper/323:12:053
2649091130,2phc2sys0-21swapper/322:12:533
2649091130,2phc2sys0-21swapper/321:57:383
2649091130,2phc2sys0-21swapper/321:51:373
2649091130,2phc2sys0-21swapper/321:51:373
2649091130,2phc2sys0-21swapper/321:36:263
2649091130,2phc2sys0-21swapper/321:12:213
2649091130,1phc2sys0-21swapper/320:30:283
2649091120,5phc2sys0-21swapper/320:04:433
2649091120,3phc2sys0-21swapper/320:24:393
2649091120,3phc2sys0-21swapper/300:30:013
2649091120,2phc2sys0-21swapper/321:05:283
2649091120,2phc2sys0-21swapper/319:15:273
2649091120,1phc2sys0-21swapper/323:00:353
59855799111,4cyclictest0-21swapper/219:10:012
2649091113,2phc2sys0-21swapper/319:49:453
2649091112,2phc2sys0-21swapper/322:51:253
2649091110,2phc2sys0-21swapper/322:59:513
2649091110,2phc2sys0-21swapper/320:49:403
2649091110,2phc2sys0-21swapper/319:34:373
2649091110,2phc2sys0-21swapper/300:24:413
2649091110,2phc2sys0-21swapper/300:07:333
2649091110,1phc2sys0-21swapper/321:29:263
2649091110,1phc2sys0-21swapper/321:29:253
2649091110,1phc2sys0-21swapper/320:40:023
2649091110,1phc2sys0-21swapper/320:07:523
2649091110,1phc2sys0-21swapper/319:23:403
2649091110,1phc2sys0-21swapper/300:12:103
9773712100,5sleep30-21swapper/323:53:303
59855399107,2cyclictest0-21swapper/119:10:021
2649091101,2phc2sys0-21swapper/322:50:013
2649091101,2phc2sys0-21swapper/321:41:593
2649091101,2phc2sys0-21swapper/321:30:293
2649091101,2phc2sys0-21swapper/319:30:013
2649091101,1phc2sys0-21swapper/319:14:323
2649091100,3phc2sys0-21swapper/320:29:443
2649091100,2phc2sys0-21swapper/323:45:053
2649091100,2phc2sys0-21swapper/323:26:323
2649091100,2phc2sys0-21swapper/322:43:193
2649091100,2phc2sys0-21swapper/322:22:153
2649091100,1phc2sys0-21swapper/322:38:493
264909191,2phc2sys0-21swapper/321:04:523
264909191,2phc2sys0-21swapper/320:37:143
264909190,2phc2sys0-21swapper/323:17:303
264909190,2phc2sys0-21swapper/320:18:343
264909190,2phc2sys0-21swapper/319:54:543
264909190,2phc2sys0-21swapper/319:44:443
264909190,2phc2sys0-21swapper/300:31:023
264909190,1phc2sys0-21swapper/320:59:263
264909180,2phc2sys0-21swapper/319:55:023
264909180,2phc2sys0-21swapper/319:35:023
264909180,1phc2sys0-21swapper/319:06:553
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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