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2026-05-16 - 03:49
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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 Sat May 16, 2026 00:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29318216814,23sleep00-21swapper/018:56:510
28747214310,94sleep228787-21sort18:56:322
2970321036,15sleep10-21swapper/118:58:311
30064999978,15cyclictest21415-21sh23:16:050
30064999874,14cyclictest0-21swapper/019:41:450
30069999772,19cyclictest5191-21diskmemload23:46:381
3006999969,67cyclictest7629-21apt-get19:31:231
30069999531,9cyclictest0-21swapper/123:51:201
3006999952,86cyclictest18470-21kworker/u18:3+ext4-rsv-conversion22:17:221
30069999469,19cyclictest12104-21sh21:11:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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