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2026-05-21 - 21:21
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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
Characteristics of the 50 highest latencies:
System rackdslot0.osadl.org (updated Thu May 21, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1331099253,15cyclictest13979-21latency_hist11:00:000
13310992313,5cyclictest0-21swapper/011:20:210
1331199220,20cyclictest455-21plymouthd10:50:131
1331299202,17cyclictest0-21swapper/212:25:122
13312992017,2cyclictest23105-21switchtime12:10:212
13311992018,1cyclictest21-21ksoftirqd/111:00:001
13311992014,3cyclictest0-21swapper/110:33:261
1331099200,17cyclictest0-21swapper/012:20:000
1331099200,17cyclictest0-21swapper/011:07:210
1331299195,13cyclictest0-21swapper/208:42:572
1331299194,1cyclictest0-21swapper/211:12:352
13312991911,5cyclictest0-21swapper/208:26:412
1331299190,18cyclictest0-21swapper/209:45:152
1331299190,16cyclictest3985-21H222:10:212
13311991915,3cyclictest0-21swapper/112:20:181
1331199191,2cyclictest0-21swapper/107:30:171
1331199191,2cyclictest0-21swapper/107:30:171
1331199190,5cyclictest0-21swapper/111:45:161
1331199190,3cyclictest0-21swapper/112:15:381
1331199190,18cyclictest16121-21pluginstate07:15:011
1331199190,17cyclictest25361-21idleruntime-cro11:20:001
13310991918,0cyclictest0-21swapper/012:37:070
1331099190,1cyclictest0-21swapper/010:20:200
1331099190,16cyclictest11151-21nfsd409:55:160
1331099190,15cyclictest0-21swapper/012:01:190
1331299182,0cyclictest0-21swapper/209:24:232
13312991816,1cyclictest28-21ksoftirqd/211:30:172
13312991815,1cyclictest0-21swapper/211:04:372
13311991816,1cyclictest0-21swapper/111:30:181
13311991816,1cyclictest0-21swapper/111:06:111
13311991816,1cyclictest0-21swapper/109:10:141
13311991816,1cyclictest0-21swapper/109:00:171
13311991815,2cyclictest30849-21nfsd412:25:161
13311991814,2cyclictest3053-21systemd-logind08:40:521
1331199180,3cyclictest1523-21lxd12:08:431
1331199180,17cyclictest870-21systemd-logind11:53:511
1331199180,17cyclictest0-21swapper/112:10:141
1331099182,15cyclictest0-21swapper/008:55:010
13310991816,1cyclictest0-21swapper/010:18:000
13310991816,1cyclictest0-21swapper/009:40:140
13310991815,2cyclictest2104-21seq12:31:420
1331099181,2cyclictest22752-21uname07:25:170
1331099181,16cyclictest28995-21cat09:30:160
1331299172,1cyclictest0-21swapper/208:15:032
13312991715,1cyclictest3979-21H222:10:212
13312991715,1cyclictest0-21swapper/211:55:152
13312991715,1cyclictest0-21swapper/211:55:152
13312991715,1cyclictest0-21swapper/211:35:172
13312991715,1cyclictest0-21swapper/210:00:142
13312991714,2cyclictest6029-21apache_accesses10:45:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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