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2026-05-25 - 01:20
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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 10 highest latencies:
System rackbslot7.osadl.org (updated Sun May 24, 2026 12:44:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
100379911725,13cyclictest0-21swapper/007:00:350
100379911448,59cyclictest32118-21acpi08:05:420
100379911445,58cyclictest0-21swapper/007:25:340
100509910551,47cyclictest8921-21timerandwakeup12:21:062
100379910553,46cyclictest5192-21ssh09:33:340
100379910538,60cyclictest0-21swapper/011:35:540
10037991053,41cyclictest22052-21fschecks_count10:55:530
100379910438,59cyclictest10211-21/usr/sbin/munin07:00:460
100379910433,8cyclictest0-21swapper/011:55:590
100379910426,8cyclictest0-21swapper/011:45:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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