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2026-08-24 - 05:08
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot8.osadl.org (updated Mon Aug 24, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31002352470,2sleep186188-21systemd-journal23:40:181
2703695993128,1cyclictest0-21swapper/321:20:003
2703695992825,1cyclictest0-21swapper/320:55:003
2703695992825,1cyclictest0-21swapper/300:30:143
2703695992724,1cyclictest0-21swapper/322:40:163
2703695992623,1cyclictest0-21swapper/322:55:153
2703695992522,1cyclictest0-21swapper/319:40:193
2703695992421,1cyclictest0-21swapper/321:25:163
2703695992421,1cyclictest0-21swapper/300:20:103
2703695992320,1cyclictest0-21swapper/323:20:203
2703695992320,1cyclictest0-21swapper/322:20:103
2703695992320,1cyclictest0-21swapper/321:00:123
2703695992320,1cyclictest0-21swapper/320:50:013
2703695992320,1cyclictest0-21swapper/320:20:143
2703695992320,1cyclictest0-21swapper/320:00:423
2703695992320,1cyclictest0-21swapper/319:20:193
2703695992220,1cyclictest0-21swapper/319:40:003
2703695992220,1cyclictest0-21swapper/319:40:003
2703695992219,1cyclictest0-21swapper/323:40:173
2703695992219,1cyclictest0-21swapper/300:15:253
2703695992218,2cyclictest0-21swapper/320:40:183
2703695992118,1cyclictest0-21swapper/323:40:023
2703695992118,1cyclictest0-21swapper/323:20:003
2703695992118,1cyclictest0-21swapper/321:40:133
2703695992118,1cyclictest0-21swapper/300:00:293
2703695992017,1cyclictest0-21swapper/322:00:003
270369599201,15cyclictest2905054-21taskset21:35:273
270369599201,15cyclictest2898866-21taskset21:34:283
270369599201,14cyclictest2969546-21turbostat22:20:003
270369599201,14cyclictest2930289-21taskset21:54:563
30658642190,12sleep244-21ksoftirqd/223:20:182
270369599193,13cyclictest2983991-21taskset22:26:313
270369599192,13cyclictest2731939-21taskset19:30:143
2703695991916,1cyclictest0-21swapper/323:30:213
2703695991916,1cyclictest0-21swapper/323:10:203
2703695991916,1cyclictest0-21swapper/323:10:203
2703695991916,1cyclictest0-21swapper/322:45:273
2703695991916,1cyclictest0-21swapper/321:20:343
2703695991916,1cyclictest0-21swapper/320:35:003
270369599191,14cyclictest3141529-21taskset00:09:243
270369599191,14cyclictest2985603-21taskset22:30:123
270369599191,14cyclictest2920275-21taskset21:45:213
270369599191,14cyclictest2783111-21taskset20:10:113
270369599191,13cyclictest2853783-21chrt21:05:123
270369599189,6cyclictest28430452sleep320:55:203
270369599182,12cyclictest3125085-21taskset23:57:253
270369599182,12cyclictest2725335-21taskset19:25:053
2703695991815,1cyclictest0-21swapper/323:45:183
2703695991815,1cyclictest0-21swapper/323:00:243
2703695991815,1cyclictest0-21swapper/319:55:013
270369599181,14cyclictest3181052-21taskset00:35:133
270369599181,14cyclictest3165370-21chrt00:25:153
270369599181,13cyclictest3148763-21taskset00:12:563
270369599181,13cyclictest3000312-21taskset22:38:313
270369599181,13cyclictest2961674-21turbostat22:15:003
270369599181,13cyclictest2946413-21chrt22:05:143
270369599181,13cyclictest2795457-21taskset20:18:573
270369599181,13cyclictest2752612-21taskset19:45:193
270369599181,13cyclictest2752612-21taskset19:45:183
270369599181,13cyclictest2710007-21taskset19:14:553
270369599181,12cyclictest2815112-21taskset20:35:023
28005582170,1sleep10-21swapper/120:20:201
2703695991714,1cyclictest0-21swapper/323:25:153
270369599171,13cyclictest3046947-21taskset23:07:133
270369599171,13cyclictest2808070-21taskset20:25:353
270369599171,13cyclictest2718398-21taskset19:17:403
270369599171,12cyclictest3017170-21taskset22:50:123
270369599171,12cyclictest2860395-21chrt21:10:133
270369599171,12cyclictest2769611-21taskset19:56:123
270369599170,14cyclictest2779726-21chrt20:05:183
29573482160,7sleep22959138-21cut22:10:192
2703695991613,1cyclictest0-21swapper/322:00:043
270369599161,11cyclictest3114079-21chrt23:50:183
30325762151,5sleep244-21ksoftirqd/223:00:152
29068072141,10sleep22906843-21grep21:40:002
27627342141,10sleep02762856-21python319:50:250
28732102130,9sleep22873262-21ntpq21:15:222
31743172121,4sleep03175176-21grep00:30:180
31025392121,8sleep03102544-21diskmemload23:44:430
30722152120,9sleep03073057-21cut23:25:150
30300082120,8sleep13024683-21/usr/sbin/munin22:55:251
30000742121,2sleep10-21swapper/122:37:491
29527382121,8sleep12952742-21ssh22:06:491
28997792120,9sleep02900265-21cut21:35:170
28268602121,8sleep12821530-21/usr/sbin/munin20:40:251
27915862120,8sleep22793342-21grep20:15:212
27818712121,4sleep22781909-21ntpq20:05:222
27188562128,2sleep00-21swapper/019:20:030
31653672111,5sleep2222-21plymouthd00:25:152
31595112113,6sleep03157328-21sendmail-msp00:20:200
31268862111,7sleep03126115-21sendmail-msp00:00:200
31036562110,8sleep13104418-21cut23:45:161
30071752111,7sleep12859891-21diskmemload22:40:411
30071072110,8sleep23007109-21ssh22:40:302
29758532110,8sleep22975859-21ssh22:20:492
29602522110,8sleep12960254-21ssh22:10:581
29444532111,7sleep22938247-21sendmail-msp22:00:332
29229502111,7sleep12922813-21/usr/sbin/munin21:50:171
29052352110,1sleep1222-21plymouthd21:35:301
28753342111,7sleep1222-21plymouthd21:19:381
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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