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2026-03-31 - 18:23
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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 rack0slot0.osadl.org (updated Tue Mar 31, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
685621360,0sleep66857-21grep09:21:216
1819621270,0sleep218172-21sshd11:00:142
813221220,4sleep32920199cyclictest09:35:223
1639221220,0sleep016393-21sshd12:14:240
1291421060,0sleep50-21swapper/511:50:255
1084321050,1sleep5761-21systemd-logind09:12:475
219502800,1sleep2321ktimersoftd/211:14:482
188742790,1sleep30-21swapper/310:55:343
280872770,0sleep4501ktimersoftd/411:57:224
56182760,1sleep55607-21bash12:26:395
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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