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2026-05-18 - 06:11
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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 May 18, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1777112980,4sleep0158674-21kworker/u16:0+events_power_efficient19:20:200
4465522330,5sleep2446555-21kthreadcore22:30:202
15281222721,3sleep2152933-21gltestperf19:05:152
158877992522,1cyclictest0-21swapper/319:15:003
158877992421,1cyclictest0-21swapper/300:20:003
158877992219,1cyclictest0-21swapper/322:00:003
158877992219,1cyclictest0-21swapper/320:40:023
158877992117,1cyclictest0-21swapper/321:40:153
15887799211,15cyclictest353344-21taskset21:31:083
15887799211,14cyclictest567639-21taskset23:49:553
158877992017,1cyclictest0-21swapper/323:05:193
158877992017,1cyclictest0-21swapper/322:40:023
15887799201,15cyclictest630863-21turbostat00:29:593
15887799201,15cyclictest455735-21taskset22:35:593
15887799201,14cyclictest302786-21taskset21:00:003
15887799201,14cyclictest225308-21taskset19:59:553
15887799201,13cyclictest520574-21taskset23:20:003
15887799200,14cyclictest231803-21taskset20:05:013
4097212190,1sleep20-21swapper/222:09:192
15887799191,14cyclictest559447-21taskset23:44:033
15887799191,14cyclictest543549-21taskset23:33:453
15887799189,6cyclictest4414092sleep322:29:583
15887799188,7cyclictest2958882sleep320:52:403
15887799183,12cyclictest199585-21turbostat19:40:013
15887799183,12cyclictest199585-21turbostat19:40:003
15887799182,12cyclictest210481-21chrt19:45:213
15887799182,12cyclictest210481-21chrt19:45:203
158877991815,1cyclictest0-21swapper/323:25:133
158877991815,1cyclictest0-21swapper/321:00:013
158877991815,1cyclictest0-21swapper/319:50:153
158877991815,1cyclictest0-21swapper/319:42:433
15887799181,14cyclictest180091-21taskset19:23:553
15887799181,13cyclictest588940-21taskset00:00:233
15887799181,13cyclictest576073-21taskset23:55:123
15887799181,13cyclictest487912-21taskset22:57:483
15887799181,13cyclictest472040-21taskset22:47:343
15887799181,13cyclictest449011-21taskset22:34:063
15887799181,13cyclictest425991-21taskset22:20:033
15887799181,13cyclictest257652-21taskset20:25:013
15887799181,13cyclictest250727-21taskset20:15:343
15887799181,13cyclictest241695-21taskset20:10:173
158877991810,5cyclictest1736292chrt19:18:343
15887799180,6cyclictest402046-21turbostat22:05:013
158877991714,1cyclictest0-21swapper/323:10:183
158877991714,1cyclictest0-21swapper/322:10:233
158877991714,1cyclictest0-21swapper/321:50:003
158877991714,1cyclictest0-21swapper/321:25:163
158877991714,1cyclictest0-21swapper/300:37:003
15887799171,13cyclictest621888-21taskset00:22:033
15887799171,13cyclictest606664-21taskset00:13:423
15887799171,13cyclictest424072-21taskset22:15:303
15887799171,13cyclictest409001-21taskset22:07:203
15887799171,13cyclictest384078-21taskset21:50:253
15887799171,13cyclictest339040-21turbostat21:25:003
15887799171,13cyclictest330819-21taskset21:19:053
15887799171,13cyclictest315078-21taskset21:05:473
15887799171,12cyclictest512639-21taskset23:15:033
15887799171,12cyclictest479369-21taskset22:50:503
15887799171,12cyclictest361135-21chrt21:35:573
15887799171,12cyclictest322918-21taskset21:13:593
15887799171,12cyclictest270003-21taskset20:30:543
15887799171,12cyclictest237830-21taskset20:05:283
15887799171,11cyclictest493112-21chrt23:00:203
15887799170,13cyclictest192703-21taskset19:30:283
5749122161,5sleep1574916-21ssh23:53:151
4725172160,6sleep0315424-21diskmemload22:48:470
158877991613,1cyclictest0-21swapper/300:05:253
15887799161,12cyclictest637174-21taskset00:30:493
15887799161,12cyclictest568272-21taskset23:50:163
15887799161,12cyclictest277023-21taskset20:40:043
15887799161,12cyclictest263694-21taskset20:27:343
15887799161,11cyclictest180442-21taskset19:25:073
15887799160,12cyclictest544301-21taskset23:35:083
15887799160,11cyclictest283467-21taskset20:45:023
3682622151,11sleep2368309-21ntpq21:40:232
129998150,6rtkit-daemon1000-21snmpd23:36:440
5828922140,10sleep1582898-21ssh23:58:281
5838442130,9sleep10-21swapper/100:00:131
3865402131,8sleep0386558-21find21:55:120
2256052131,3sleep2225638-21apt-get20:00:112
129998130,9rtkit-daemon1-21systemd21:00:002
129998130,8rtkit-daemon1002-21runrttasks00:17:520
5141532121,8sleep1515792-21kthreadcore23:15:181
4707452121,8sleep1470794-21ntp_states22:45:231
4563082120,5sleep1456316-21ssh22:37:391
4043942121,8sleep1406055-21kthreadcore22:05:191
3616312120,4sleep1361637-21ssh21:37:241
2705972121,7sleep0270630-21apt-get20:35:130
129998120,8rtkit-daemon606724-21ssh00:13:490
129998120,8rtkit-daemon392563-21ssh21:55:462
129998120,4rtkit-daemon165435-21munin-node23:40:020
6154322111,2sleep00-21swapper/000:20:120
5348882110,8sleep0534894-21ssh23:26:360
5118472110,8sleep1511853-21ssh23:13:351
5027932111,7sleep2496960-21/usr/sbin/munin23:05:292
4014672110,8sleep0401475-21sh22:03:290
3446632113,5sleep1344706-21ntpq21:25:211
2834742110,7sleep2283204-21apt-get20:45:062
2123532110,5sleep244-21ksoftirqd/219:49:062
2123532110,5sleep244-21ksoftirqd/219:49:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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