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2026-05-06 - 09:06
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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 Wed May 06, 2026 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9182992514,1cyclictest0-21swapper/121:13:161
918299230,5cyclictest0-21swapper/121:45:401
918299230,5cyclictest0-21swapper/119:11:081
918299230,18cyclictest0-21swapper/119:53:211
9181992314,0cyclictest0-21swapper/021:13:170
918199230,18cyclictest0-21swapper/020:47:410
918399227,14cyclictest0-21swapper/220:50:182
918399227,14cyclictest0-21swapper/220:50:182
918199220,18cyclictest0-21swapper/021:42:120
9183992116,2cyclictest29644-21nvmesmart_nvme022:35:202
9182992120,0cyclictest0-21swapper/121:15:161
9181992118,2cyclictest27289-21fschecks_count21:35:160
918199210,3cyclictest0-21swapper/021:51:160
918399200,2cyclictest9548-21cstates23:55:132
918199203,16cyclictest0-21swapper/023:50:000
9181992018,1cyclictest0-21swapper/023:25:160
918399191,16cyclictest1655-21grep19:50:192
9182991918,0cyclictest0-21swapper/120:06:241
9182991917,1cyclictest6118-21uname20:55:201
9182991917,1cyclictest0-21swapper/123:20:241
918299190,18cyclictest843-21systemd-network19:38:561
918299190,18cyclictest399-20systemd-journal21:24:561
918299190,18cyclictest20154-21cpuspeed_turbos20:25:131
9181991917,1cyclictest0-21swapper/020:42:370
9181991917,1cyclictest0-21swapper/019:44:390
918199190,18cyclictest0-21swapper/023:03:570
918399182,1cyclictest234242chrt21:29:132
918399181,16cyclictest18299-21latency_hist19:25:012
918399181,16cyclictest15019-21sshd23:08:392
918399180,17cyclictest14496-21snapd22:00:202
9182991816,1cyclictest0-21swapper/122:45:201
918299180,3cyclictest399-20systemd-journal21:52:181
918299180,17cyclictest843-21systemd-network23:50:391
918299180,17cyclictest2040-21apt-config00:40:001
918299180,17cyclictest0-21swapper/122:15:221
918299180,16cyclictest29189-21perf21:40:001
918199183,1cyclictest9-21ksoftirqd/000:27:260
9181991816,1cyclictest11283-21timerandwakeup19:10:230
9181991816,1cyclictest0-21swapper/019:35:010
9181991816,1cyclictest0-21swapper/019:35:010
9181991816,1cyclictest0-21swapper/000:08:290
9181991814,3cyclictest21356-21nfsd422:20:180
9181991813,4cyclictest17126-21cat22:15:010
9181991813,3cyclictest0-21swapper/023:15:140
918199181,16cyclictest15060-21python319:20:020
918199180,17cyclictest8850-21latency_hist20:05:010
918199180,17cyclictest27812-21munin-run22:35:000
918199180,17cyclictest0-21swapper/022:15:220
918399172,1cyclictest282712chrt00:29:572
9183991716,1cyclictest28-21ksoftirqd/220:10:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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