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2026-01-03 - 03:42
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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
Characteristics of the 100 highest latencies:
System rackdslot0.osadl.org (updated Sat Jan 03, 2026 00:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14461993617,18cyclictest0-21swapper/123:15:141
14461993130,0cyclictest0-21swapper/121:00:141
14461992516,0cyclictest0-21swapper/122:50:121
1445599230,5cyclictest0-21swapper/000:35:130
14455992218,3cyclictest19790-21cron19:20:010
14468992119,1cyclictest11226-21sed23:50:002
1446899210,8cyclictest0-21swapper/220:44:152
14468992019,1cyclictest0-21swapper/221:50:212
1446899192,16cyclictest16009-21ntpq23:00:182
14468991917,1cyclictest0-21swapper/220:00:512
1446899190,18cyclictest870-21systemd-logind21:08:522
1446199192,2cyclictest16276-21switchtime21:05:231
14461991916,2cyclictest30145-21cpuspeed_turbos22:30:131
14461991915,3cyclictest0-21swapper/122:26:021
14468991817,1cyclictest28-21ksoftirqd/223:35:162
14468991816,1cyclictest17426-21expr22:05:192
14468991816,0cyclictest0-21swapper/221:49:052
14468991815,2cyclictest28-21ksoftirqd/223:20:152
14468991814,3cyclictest31565-21fgrep22:30:202
14468991814,3cyclictest1348-21lxd21:34:492
1446899181,16cyclictest27794-21chrt19:32:362
1446899180,17cyclictest426-21systemd-udevd00:15:512
1446899180,17cyclictest0-21swapper/223:10:162
1446199182,15cyclictest74082chrt19:53:331
1446199182,15cyclictest0-21swapper/120:34:471
14461991816,1cyclictest0-21swapper/120:50:011
14461991816,1cyclictest0-21swapper/119:45:171
14461991815,2cyclictest0-21swapper/120:56:161
14461991814,3cyclictest863-21avahi-daemon19:15:201
14461991814,3cyclictest0-21swapper/120:20:281
14461991813,3cyclictest0-21swapper/100:09:341
1446199181,2cyclictest8531-21chrt20:52:451
1446199181,2cyclictest8531-21chrt20:52:441
1445599182,15cyclictest0-21swapper/021:41:320
14455991816,1cyclictest6510-21tr20:50:160
14455991816,1cyclictest6510-21tr20:50:150
14455991816,1cyclictest22302-21cat23:10:200
14455991815,2cyclictest28004-21lxd21:54:340
14455991815,2cyclictest15562-21cat19:10:170
14455991815,2cyclictest12046-21nfsd420:00:190
1445599181,2cyclictest1348-21lxd19:40:490
1445599180,17cyclictest399-20systemd-journal22:49:550
14468991715,1cyclictest28-21ksoftirqd/222:35:142
14468991715,1cyclictest28-21ksoftirqd/222:35:142
14468991715,1cyclictest28-21ksoftirqd/219:40:182
14468991715,1cyclictest27488-21sed21:25:212
14468991715,1cyclictest0-21swapper/222:11:352
14468991715,1cyclictest0-21swapper/220:08:142
14468991715,1cyclictest0-21swapper/200:00:182
14468991714,2cyclictest24833-21sort19:25:192
14468991714,2cyclictest2397-21fschecks_count00:30:182
14468991714,2cyclictest18111-21fschecks_count21:10:142
14468991714,2cyclictest12800-21uname22:55:172
14468991714,2cyclictest11422-21fschecks_time21:55:162
14468991713,3cyclictest0-21swapper/223:56:052
1446899171,15cyclictest9355-21cpuspeed_turbos20:55:142
1446899171,15cyclictest3979-21H222:10:212
1446899171,15cyclictest28-21ksoftirqd/222:00:202
1446899171,15cyclictest28-21ksoftirqd/221:40:122
1446899170,2cyclictest6075-21nfsd400:35:172
1446899170,2cyclictest32265-21missed_timers21:35:182
1446899170,2cyclictest24522-21needreboot23:15:182
1446899170,2cyclictest23328-21fschecks_count00:10:172
1446899170,2cyclictest20203-21sed20:15:202
1446899170,1cyclictest0-21swapper/223:30:212
1446899170,16cyclictest8554-21fschecks_count19:55:142
1446899170,16cyclictest6404-21/usr/sbin/munin22:45:132
1446899170,16cyclictest4409-21perf19:50:002
1446899170,16cyclictest28701-21nvmesmart_nvme022:25:192
1446899170,16cyclictest28357-21missed_timers20:30:192
1446899170,16cyclictest21201-21processes00:05:192
1446899170,16cyclictest19575-21trivial-rewrite19:17:122
1446899170,16cyclictest18817-21wc23:05:202
1446899170,16cyclictest0-21swapper/220:11:082
1446899170,16cyclictest0-21swapper/200:20:142
14461991715,1cyclictest0-21swapper/119:10:201
14461991714,2cyclictest3983-21H222:10:211
14461991714,2cyclictest32732-21sed00:25:191
14461991714,2cyclictest27749-21taskset21:27:041
14461991714,2cyclictest25876-21nfsd422:20:191
14461991714,2cyclictest24607-21switchtime21:20:221
14461991714,2cyclictest15839-21nfsd423:00:191
14461991714,2cyclictest1550-21snapd22:57:391
14461991712,1cyclictest0-21swapper/100:04:051
1446199171,15cyclictest4331-21fschecks_count22:40:151
1446199171,15cyclictest27006-21nfsd419:30:181
1446199171,15cyclictest23190-21munin-plugin-st23:15:011
1446199171,15cyclictest0-21swapper/100:30:171
1446199170,2cyclictest9927-21python321:55:011
1446199170,2cyclictest3988-21H222:10:211
1446199170,2cyclictest28277-21cpuspeed_turbos00:20:131
1446199170,2cyclictest26843-21tr00:15:201
1446199170,2cyclictest2069-21systemd-udevd20:16:521
1446199170,2cyclictest1523-21lxd20:00:491
1446199170,16cyclictest7585-21pzem_power23:40:191
1446199170,16cyclictest6083-21grep21:45:181
1446199170,16cyclictest31222-21grep20:35:181
1446199170,16cyclictest29943-21sendmail_mailqu21:30:211
1446199170,16cyclictest23773-21chrt22:15:341
1446199170,16cyclictest22539-21perf21:20:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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