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2026-03-19 - 20:09
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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 rack5slot2.osadl.org (updated Thu Mar 19, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288242200183,12sleep10-21swapper/107:08:561
286742197181,11sleep00-21swapper/007:06:580
288662188171,12sleep30-21swapper/307:09:293
287112176158,13sleep20-21swapper/207:07:282
294912480,0sleep00-21swapper/010:30:150
319852400,0sleep10-21swapper/109:12:501
214682140,0sleep30-21swapper/312:17:483
61692110,0sleep36166-21ssh10:50:203
2908299102,4cyclictest22887-21perf12:35:010
290829981,3cyclictest17503-21cron07:50:000
20043280,0sleep10-21swapper/110:10:111
290829971,5cyclictest22844-21munin-run09:05:000
290859960,1cyclictest8290-21ssh12:27:112
290859960,1cyclictest0-21swapper/211:40:082
290829962,4cyclictest13741-21sendmail-msp09:20:000
290899955,0cyclictest40-21ksoftirqd/308:50:103
290899955,0cyclictest22726-21kworker/3:212:04:063
290899955,0cyclictest0-21swapper/311:42:183
290899955,0cyclictest0-21swapper/310:06:243
290899951,3cyclictest40-21ksoftirqd/311:15:023
290899950,5cyclictest10677-21ssh12:12:213
290899950,5cyclictest0-21swapper/309:36:433
290899950,5cyclictest0-21swapper/309:17:483
290899950,5cyclictest0-21swapper/307:10:023
290899950,4cyclictest28369-21ssh10:30:113
290899950,4cyclictest2810-21ssh11:05:103
290899950,0cyclictest25304-21diskmemload10:03:293
290899950,0cyclictest0-21swapper/309:59:513
290859955,0cyclictest0-21swapper/212:15:162
290859950,5cyclictest16906-21ntp_states08:50:162
290859950,5cyclictest0-21swapper/210:29:022
290859950,5cyclictest0-21swapper/210:16:312
290859950,5cyclictest0-21swapper/210:00:132
290859950,5cyclictest0-21swapper/209:39:262
290839950,5cyclictest0-21swapper/111:00:391
290829950,5cyclictest0-21swapper/012:36:170
290829950,5cyclictest0-21swapper/012:23:370
290829950,5cyclictest0-21swapper/011:17:080
290829950,5cyclictest0-21swapper/007:30:100
290829950,4cyclictest22893-21apt-get08:00:010
290829950,4cyclictest22721-21awk11:15:010
290829950,4cyclictest14298-21ssh09:20:130
290829950,4cyclictest0-21swapper/010:55:100
290829950,0cyclictest0-21swapper/009:39:380
290899944,0cyclictest40-21ksoftirqd/312:30:093
290899944,0cyclictest40-21ksoftirqd/311:50:013
290899944,0cyclictest40-21ksoftirqd/307:15:013
290899944,0cyclictest22726-21kworker/3:208:42:353
290899944,0cyclictest22726-21kworker/3:207:57:493
290899943,1cyclictest8288-21grep10:20:133
290899943,1cyclictest6928-21cut10:35:133
290899942,1cyclictest814-21snmpd10:58:333
290899940,4cyclictest0-21swapper/312:35:103
290899940,4cyclictest0-21swapper/312:20:093
290899940,4cyclictest0-21swapper/311:58:213
290899940,4cyclictest0-21swapper/311:30:263
290899940,4cyclictest0-21swapper/311:25:113
290899940,4cyclictest0-21swapper/311:21:383
290899940,4cyclictest0-21swapper/310:45:323
290899940,4cyclictest0-21swapper/310:15:113
290899940,4cyclictest0-21swapper/309:50:113
290899940,4cyclictest0-21swapper/309:27:133
290899940,3cyclictest7442-21apt07:30:103
290899940,3cyclictest31241-21sh11:35:003
290899940,3cyclictest28201-21ssh12:05:103
290899940,3cyclictest27225-21ssh10:13:343
290899940,3cyclictest26892-21irqstats09:10:143
290899940,3cyclictest26045-21memory11:00:143
290899940,3cyclictest22726-21kworker/3:209:47:543
290899940,3cyclictest21456-21ssh10:42:083
290899940,3cyclictest19458-21tr08:55:203
290899940,3cyclictest18708-21ssh10:25:143
290899940,3cyclictest13570-21diskstats11:10:123
290899940,3cyclictest13168-21/usr/sbin/munin08:45:153
290899940,3cyclictest0-21swapper/309:30:103
290899940,3cyclictest0-21swapper/308:30:113
290899940,3cyclictest0-21swapper/308:25:003
290899940,3cyclictest0-21swapper/307:50:103
290859944,0cyclictest0-21swapper/208:45:172
290859944,0cyclictest0-21swapper/208:20:152
290859944,0cyclictest0-21swapper/207:37:472
290859943,1cyclictest0-21swapper/211:05:012
290859942,2cyclictest0-21swapper/210:14:442
290859940,4cyclictest11210-21apt-get11:25:122
290859940,4cyclictest0-21swapper/212:34:512
290859940,4cyclictest0-21swapper/212:05:012
290859940,4cyclictest0-21swapper/212:00:012
290859940,4cyclictest0-21swapper/211:30:092
290859940,4cyclictest0-21swapper/210:55:112
290859940,4cyclictest0-21swapper/210:05:012
290859940,4cyclictest0-21swapper/209:25:112
290859940,4cyclictest0-21swapper/208:11:322
290859940,4cyclictest0-21swapper/207:41:512
290859940,4cyclictest0-21swapper/207:20:142
290859940,4cyclictest0-21swapper/207:10:152
290859940,3cyclictest9089-21cat08:35:172
290859940,3cyclictest4690-21users09:30:202
290859940,3cyclictest3693-21ssh09:15:042
290859940,3cyclictest31767-21tune2fs07:15:002
290859940,3cyclictest26874-21awk08:05:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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