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2026-06-30 - 04:02
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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 Tue Jun 30, 2026 00:44:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20509211612,75sleep220579-21awk18:53:462
21292991053,28cyclictest1178-21/usr/sbin/munin22:53:292
212789910455,38cyclictest17597-21latency_hist21:33:050
21292991033,28cyclictest15314-21seq00:09:572
212789910327,42cyclictest25200-21/usr/sbin/munin23:33:260
21292991013,30cyclictest2051-21sh23:48:582
21292991013,30cyclictest2051-21sh23:48:582
21292991002,30cyclictest18366-21seq23:22:432
212839910057,37cyclictest352-21runrttasks22:18:191
2129299982,28cyclictest29916-21runrttasks23:40:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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