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2026-08-01 - 04:08
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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 Aug 01, 2026 00:44:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20363217810,26sleep00-21swapper/018:55:520
1587421220,7sleep3451rcuc/322:22:193
20524991113,83cyclictest3978-21sh23:51:072
1922021119,70sleep119269-21fschecks_time18:51:201
20524991063,67cyclictest15246-21apt-get00:11:052
2197021040,5sleep20-21swapper/221:40:192
205199910475,21cyclictest586-21wc23:45:541
20524991028,76cyclictest6411-21ssh23:01:332
205249910274,19cyclictest5671-21munin-plugin-st23:00:532
20524991003,35cyclictest24171-21latency_hist20:45:542
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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