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2025-12-29 - 11:21
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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 Mon Dec 29, 2025 00:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122292229212,12sleep10-21swapper/119:07:381
121352198181,12sleep30-21swapper/319:06:273
123602186171,11sleep00-21swapper/019:09:220
123522175159,12sleep20-21swapper/219:09:162
189542480,0sleep20-21swapper/223:40:132
60482420,0sleep10-21swapper/122:10:011
15492120,0sleep10-21swapper/123:05:141
108342100,0sleep00-21swapper/022:20:010
125949981,5cyclictest0-21swapper/000:35:150
125949970,3cyclictest5739-21munin-run21:05:000
126119962,3cyclictest0-21swapper/319:15:123
126119960,6cyclictest0-21swapper/323:35:123
126119960,6cyclictest0-21swapper/321:20:133
126039960,6cyclictest0-21swapper/221:25:142
125999962,2cyclictest0-21swapper/123:35:111
125999962,2cyclictest0-21swapper/119:15:131
125999961,3cyclictest0-21swapper/121:25:141
125999961,3cyclictest0-21swapper/120:45:131
125999961,3cyclictest0-21swapper/120:40:111
125999961,3cyclictest0-21swapper/120:00:121
125949960,6cyclictest0-21swapper/021:50:130
31060250,0sleep10-21swapper/123:00:011
126119955,0cyclictest27148-21kworker/3:122:18:393
126119955,0cyclictest27148-21kworker/3:121:11:303
126119955,0cyclictest27148-21kworker/3:120:49:053
126119955,0cyclictest27148-21kworker/3:119:41:553
126119955,0cyclictest27148-21kworker/3:119:30:433
126119955,0cyclictest27148-21kworker/3:100:32:583
126119955,0cyclictest0-21swapper/322:30:203
126119951,4cyclictest27148-21kworker/3:120:25:223
126119951,3cyclictest29842-21ntpq00:00:173
126119951,3cyclictest0-21swapper/300:05:103
126119950,5cyclictest0-21swapper/321:15:253
126119950,5cyclictest0-21swapper/321:00:143
126119950,4cyclictest18545-21apt-get21:30:133
126119950,4cyclictest0-21swapper/323:10:133
126119950,4cyclictest0-21swapper/321:25:013
126119950,0cyclictest0-21swapper/323:00:013
126039950,5cyclictest0-21swapper/222:45:212
125999952,2cyclictest0-21swapper/120:20:151
125999951,3cyclictest0-21swapper/122:20:121
125999951,3cyclictest0-21swapper/122:05:121
125999951,2cyclictest0-21swapper/123:20:131
125999951,2cyclictest0-21swapper/121:20:131
125999951,2cyclictest0-21swapper/121:05:161
125999951,2cyclictest0-21swapper/119:55:131
125999950,4cyclictest0-21swapper/120:50:101
125949952,3cyclictest28486-21/usr/sbin/munin20:45:180
3806240,0sleep2291rcuc/200:15:112
126119944,0cyclictest27148-21kworker/3:123:25:503
126119944,0cyclictest27148-21kworker/3:122:29:513
126119944,0cyclictest27148-21kworker/3:120:37:523
126119944,0cyclictest27148-21kworker/3:120:04:173
126119944,0cyclictest27148-21kworker/3:119:53:063
126119944,0cyclictest0-21swapper/320:05:163
126119944,0cyclictest0-21swapper/300:36:213
126119941,3cyclictest774-21snmpd21:48:213
126119940,4cyclictest459-21dbus-daemon19:15:003
126119940,4cyclictest23612-21apt-get23:50:153
126119940,4cyclictest0-21swapper/323:55:123
126119940,4cyclictest0-21swapper/323:40:113
126119940,4cyclictest0-21swapper/323:05:123
126119940,4cyclictest0-21swapper/322:55:163
126119940,4cyclictest0-21swapper/322:02:323
126119940,4cyclictest0-21swapper/320:40:003
126119940,4cyclictest0-21swapper/320:10:003
126119940,3cyclictest3417-21cut21:00:003
126119940,3cyclictest32076-21ntp_states19:45:183
126119940,3cyclictest28443-21/usr/sbin/munin21:50:143
126119940,3cyclictest26122-21/usr/sbin/munin22:50:103
126119940,3cyclictest21107-21sed22:40:003
126119940,3cyclictest19264-21hddtemp_smartct19:20:143
126039943,1cyclictest16880-21grep22:30:142
126039943,1cyclictest14207-21grep00:35:162
126039940,4cyclictest8276-21apt-get20:05:112
126039940,4cyclictest0-21swapper/223:35:112
126039940,4cyclictest0-21swapper/223:30:152
126039940,4cyclictest0-21swapper/223:15:122
126039940,4cyclictest0-21swapper/222:05:132
126039940,4cyclictest0-21swapper/221:50:142
126039940,4cyclictest0-21swapper/221:35:142
126039940,4cyclictest0-21swapper/221:20:132
126039940,4cyclictest0-21swapper/221:10:132
126039940,4cyclictest0-21swapper/220:55:152
126039940,4cyclictest0-21swapper/220:30:152
126039940,4cyclictest0-21swapper/220:15:152
126039940,4cyclictest0-21swapper/219:55:132
126039940,4cyclictest0-21swapper/219:25:122
126039940,3cyclictest32179-21ntp_states21:55:172
126039940,3cyclictest29691-21memory22:55:222
126039940,3cyclictest20967-21cat21:35:002
126039940,3cyclictest15069-21munin-node19:15:012
126039940,1cyclictest27168-21memory23:55:172
126039940,1cyclictest1504-21diskstats22:00:152
125999944,0cyclictest0-21swapper/123:45:041
125999944,0cyclictest0-21swapper/119:54:331
125999941,2cyclictest0-21swapper/123:30:141
125999941,2cyclictest0-21swapper/122:25:121
125999941,2cyclictest0-21swapper/122:15:131
125999941,2cyclictest0-21swapper/121:40:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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