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2026-07-06 - 09:40
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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 20 highest latencies:
System rack8slot4.osadl.org (updated Mon Jul 06, 2026 00:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33145182231169,21sleep10-21swapper/119:08:041
33144282230168,20sleep50-21swapper/519:06:485
33144002226165,18sleep40-21swapper/419:06:224
33145592223164,48sleep60-21swapper/619:08:426
33146392217188,19sleep30-21swapper/319:09:513
33143602213163,16sleep20-21swapper/219:05:482
33144592212183,19sleep70-21swapper/719:07:147
33144792204175,19sleep00-21swapper/019:07:310
331548999340,32cyclictest3384196-21cron21:15:012
3315501993331,1cyclictest1-21systemd19:25:017
331549999330,32cyclictest3481468-21sd-rmrf00:09:116
331549599330,32cyclictest3390462-21latency_hist21:25:015
331549599330,32cyclictest3390462-21latency_hist21:25:015
3315489993328,4cyclictest3392411-21unix_chkpwd21:30:012
3315489993328,4cyclictest1-21systemd23:50:012
3315499993227,4cyclictest3359220-21cron20:30:016
3315489993228,3cyclictest3326170-21sort19:30:022
331548999320,31cyclictest3395519-21latency_hist21:35:012
331549599310,30cyclictest3378501-21cpuspeed_turbos21:05:015
331549399310,29cyclictest3478815-21appstreamcli00:05:014
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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