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2024-03-01 - 01:27
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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 rack9slot5.osadl.org (updated Thu Jul 13, 2023 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1357922215,4sleep00-21swapper/019:09:120
14032991815,2cyclictest20855-21cat00:20:001
137532187,7sleep10-21swapper/119:09:441
246099130,2rtkit-daemon2459-21rtkit-daemon00:15:230
14032991310,2cyclictest15119-21kernelversion20:00:271
14032991310,2cyclictest1012-21munin-run21:20:001
14031991312,1cyclictest31104-21fschecks_time21:15:210
14031991311,1cyclictest25013-21x2golistsession21:55:230
246099120,2rtkit-daemon2459-21rtkit-daemon20:03:090
14032991210,1cyclictest8969-21open_files22:20:271
14031991211,1cyclictest28424-21x2gosqlitewrapp23:40:250
1403299119,1cyclictest22042-21needreboot00:20:301
1403299119,1cyclictest14625-21aten_r9power_cu00:10:181
1403299119,1cyclictest12080-21x2golistsession22:25:241
1403299119,1cyclictest0-21swapper/119:40:001
1403299118,2cyclictest7901-21latency_hist00:00:001
1403299118,2cyclictest30541-21apt00:35:001
1403199119,1cyclictest2167-21idleruntime21:20:220
1403199118,2cyclictest17671-21df_abs19:15:200
1403199118,2cyclictest12531-21unixbench-2d23:15:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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