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2026-05-07 - 05:07
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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 Thu May 07, 2026 00:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27069211812,73sleep027095-21idleruntime-cro19:01:420
272209911045,58cyclictest0-21swapper/000:26:520
2660621060,6sleep20-21swapper/222:37:092
27233999681,8cyclictest0-21swapper/223:51:462
268872956,15sleep20-21swapper/218:59:192
27220999478,10cyclictest5060-21/usr/sbin/munin19:32:130
27220999248,30cyclictest20249-21apt-get23:21:520
27220999174,11cyclictest298-21in:imuxsock00:06:400
27220999152,31cyclictest2820-21apt-get23:46:520
27220999137,42cyclictest0-21swapper/019:11:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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