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2024-09-08 - 08:43
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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 20 highest latencies:
System rackaslot8.osadl.org (updated Sun Sep 08, 2024 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
78132305270,23sleep10-21swapper/119:08:231
77582286220,21sleep00-21swapper/019:07:420
78992271211,47sleep30-21swapper/319:09:293
77042265228,22sleep20-21swapper/219:07:192
15752650,0sleep00-21swapper/000:15:300
134732630,0sleep10-21swapper/123:15:011
135262620,0sleep20-21swapper/221:20:202
32902590,0sleep10-21swapper/121:36:171
117312590,0sleep20-21swapper/223:57:332
159252530,0sleep10-21swapper/119:25:121
77212200,0sleep00-21swapper/023:32:450
271872190,0sleep30-21swapper/323:24:153
24712170,0sleep00-21swapper/022:44:440
23612150,0sleep20-21swapper/223:06:322
211782150,0sleep30-21swapper/323:41:503
167152150,0sleep00-21swapper/022:31:100
133312110,0sleep30-21swapper/322:06:353
804799105,3cyclictest19982-21systemd-journal21:25:531
804599109,1cyclictest12-21ksoftirqd/000:00:010
164242100,0sleep10-21swapper/100:29:491
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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