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2026-08-22 - 13:33
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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 rack5slot2.osadl.org (updated Sat Aug 22, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
308532207192,11sleep10-21swapper/119:08:561
306012186170,12sleep00-21swapper/019:05:380
306462182165,12sleep30-21swapper/319:06:133
30752211497,12sleep20-21swapper/219:07:372
149572490,0sleep10-21swapper/123:14:321
226982470,0sleep30-21swapper/322:12:333
272122460,0sleep10-21swapper/100:25:341
315362430,0sleep231533-21apt-get22:50:112
160062410,0sleep00-21swapper/020:45:180
242982160,0sleep30-21swapper/323:19:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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