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2026-09-15 - 14:09
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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 Tue Sep 15, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3823150993734,1cyclictest0-21swapper/300:05:013
3823150993027,1cyclictest0-21swapper/321:15:003
3823150992925,2cyclictest0-21swapper/319:20:203
382315099257,6cyclictest4104670-21turbostat22:30:003
3823150992522,1cyclictest0-21swapper/323:40:163
3823150992522,1cyclictest0-21swapper/322:40:013
3823150992522,1cyclictest0-21swapper/319:20:003
3823150992421,1cyclictest0-21swapper/321:45:193
3823150992421,1cyclictest0-21swapper/319:40:263
382315099222,15cyclictest3889361-21sleep20:00:003
3823150992220,1cyclictest0-21swapper/322:00:193
3823150992219,1cyclictest0-21swapper/321:20:163
3823150992219,1cyclictest0-21swapper/320:41:133
3823150992219,1cyclictest0-21swapper/319:50:243
382315099212,15cyclictest4026628-21taskset21:40:123
382315099212,15cyclictest4026628-21taskset21:40:123
3823150992118,1cyclictest0-21swapper/323:20:243
3823150992118,1cyclictest0-21swapper/323:05:273
3823150992118,1cyclictest0-21swapper/322:45:213
3823150992118,1cyclictest0-21swapper/320:01:133
3823150992118,1cyclictest0-21swapper/300:15:263
382315099211,15cyclictest3908657-21taskset20:15:003
382315099211,14cyclictest20478-21taskset23:39:563
382315099202,14cyclictest3979149-21taskset21:09:413
3823150992018,0cyclictest0-21swapper/322:15:163
3823150992017,1cyclictest0-21swapper/321:15:183
382315099201,15cyclictest3855924-21taskset19:30:193
382315099201,15cyclictest103384-21taskset00:30:203
382315099201,14cyclictest4081131-21taskset22:14:573
382315099201,14cyclictest3927567-21taskset20:26:563
382315099201,14cyclictest3863672-21turbostat19:40:003
382315099201,14cyclictest3828595-21taskset19:10:223
3823150991917,1cyclictest0-21swapper/323:55:023
3823150991916,1cyclictest0-21swapper/300:10:003
3823150991911,6cyclictest39725142sleep321:02:123
382315099191,14cyclictest4096748-21taskset22:24:513
382315099191,14cyclictest3939771-21taskset20:35:263
382315099191,14cyclictest3901218-21taskset20:05:223
382315099191,13cyclictest4191312-21chrt23:25:123
382315099191,13cyclictest4158053-21taskset23:00:313
382315099191,13cyclictest4003089-21taskset21:25:123
382315099189,6cyclictest39523982sleep320:45:213
3823150991816,1cyclictest0-21swapper/323:55:223
3823150991816,1cyclictest0-21swapper/322:40:123
3823150991816,1cyclictest0-21swapper/320:35:013
3823150991815,1cyclictest0-21swapper/321:33:093
382315099181,13cyclictest74461-21taskset00:11:243
382315099181,13cyclictest4181544-21taskset23:15:473
382315099181,13cyclictest4173894-21taskset23:11:173
382315099181,13cyclictest4144329-21taskset22:55:133
382315099181,13cyclictest4072012-21taskset22:06:183
382315099181,13cyclictest4042549-21taskset21:50:143
382315099181,13cyclictest4024137-21taskset21:35:233
382315099181,13cyclictest3915474-21taskset20:20:143
382315099181,13cyclictest3876188-21taskset19:45:543
382315099181,13cyclictest113587-21taskset00:35:293
382315099181,12cyclictest83909-21taskset00:20:013
382315099181,12cyclictest4136443-21chrt22:50:123
382315099180,14cyclictest4054995-21taskset21:55:193
39946002171,9sleep13994606-21ssh21:19:181
382315099177,7cyclictest41109392sleep322:30:383
382315099171,13cyclictest97752-21taskset00:25:263
382315099171,13cyclictest3959217-21taskset20:50:243
382315099171,13cyclictest3914625-21taskset20:16:253
382315099171,13cyclictest11353-21taskset23:31:263
382315099171,12cyclictest3965975-21taskset20:56:343
382315099171,12cyclictest3850560-21taskset19:25:293
382315099171,12cyclictest34849-21taskset23:45:533
447272161,4sleep044846-21perl23:55:130
41318382160,5sleep14131840-21kthreadcore22:45:181
41729222151,11sleep14172970-21ntpq23:10:201
544222140,3sleep154426-21kthreadcore00:00:191
40169812140,1sleep00-21swapper/021:31:030
39975662141,4sleep23994888-21sendmail-msp21:20:202
222822140,3sleep023315-21kthreadcore23:40:180
41111822131,3sleep0222-21plymouthd22:31:220
41896502120,6sleep14183077-21sendmail-msp23:21:261
41592372121,8sleep24159241-21ssh23:03:512
40326982121,8sleep04026325-21sendmail-msp21:40:550
40326982121,8sleep04026325-21sendmail-msp21:40:540
39665362122,7sleep13966569-21apt-get21:00:151
38948302121,8sleep13894869-21ntpq20:00:241
445662112,5sleep244561-21apt-get23:55:112
41821632110,6sleep24182169-21ssh23:17:312
41599882111,2sleep20-21swapper/223:05:132
41506522111,7sleep14150656-21ssh22:56:541
41261342111,3sleep14126162-21ntpq22:40:251
40995712110,8sleep14101234-21cut22:25:171
40966482111,3sleep0222-21plymouthd22:24:280
40109382111,6sleep24010944-21ssh21:30:142
40098472110,8sleep24009853-21ssh21:28:012
39665272111,7sleep23966306-21sendmail-msp21:00:072
39294912110,8sleep13931109-21cat20:30:191
39210472111,7sleep172-21kcompactd020:20:491
39042562111,8sleep23906018-21tr20:10:192
38385212111,7sleep13838098-21sendmail-msp19:20:151
378712111,7sleep138829-21kthreadcore23:50:171
823322101,2sleep20-21swapper/200:16:282
510852100,7sleep151091-21ssh23:57:191
41905932100,1sleep20-21swapper/223:24:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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