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2026-06-04 - 02:10
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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 rackeslot3.osadl.org (updated Wed Jun 03, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
206961999660,2cyclictest0-21swapper/111:38:351
2069619996562,2cyclictest0-21swapper/109:00:131
2069619996543,21cyclictest2185659-21kworker/1:010:45:151
2069619996260,1cyclictest0-21swapper/111:50:261
206961999620,2cyclictest0-21swapper/107:50:311
2069619996142,17cyclictest2611354-1kworker/1:2H08:30:001
2069619996058,1cyclictest0-21swapper/112:38:061
2069619996056,2cyclictest2146239-21cron09:55:001
2069619996042,17cyclictest2144605-21kworker/1:110:05:141
2069619995957,1cyclictest0-21swapper/108:23:101
2069619995956,2cyclictest0-21swapper/111:15:111
2069619995944,14cyclictest2274305-21kworker/1:012:30:141
2069619995944,14cyclictest2255932-21kworker/1:212:10:151
2069619995944,14cyclictest2100141-21kworker/1:108:54:301
2069619995943,15cyclictest2081075-21kworker/1:008:05:181
2069619995939,18cyclictest2071008-21kworker/1:207:15:011
2069619995938,19cyclictest2241518-21kworker/1:311:45:161
206961999590,57cyclictest1808780-21sshd08:04:231
2069619995856,1cyclictest0-21swapper/107:24:451
2069619995843,14cyclictest2241518-21kworker/1:311:55:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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