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2024-06-14 - 23:21
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack8slot7.osadl.org (updated Fri Jun 14, 2024 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18919992322,1cyclictest0-21swapper/112:22:551
1891899210,20cyclictest0-21swapper/009:20:150
1891999200,20cyclictest0-21swapper/111:48:361
1891999200,20cyclictest0-21swapper/109:43:261
1891999200,1cyclictest0-21swapper/109:18:151
1891999180,18cyclictest0-21swapper/109:50:251
1891899180,18cyclictest0-21swapper/011:46:560
18919991716,1cyclictest0-21swapper/109:20:351
18918991514,1cyclictest0-21swapper/009:43:050
18919991312,1cyclictest0-21swapper/111:09:551
1891999130,11cyclictest19342-21latency_hist11:15:011
1891999121,10cyclictest14924-21x2golistsession09:29:201
1891999120,3cyclictest11618-21x2golistsession10:16:591
1891899122,3cyclictest7072-21x2gosqlitewrapp10:39:430
1891899122,3cyclictest22786-21x2gosqlitewrapp10:51:180
1891899122,3cyclictest20345-21irqstats11:15:200
1891899121,9cyclictest21649-21diskmemload12:22:540
1891999118,2cyclictest20318-21x2golistsession10:24:291
1891999117,2cyclictest1921-21x2gosqlitewrapp07:35:151
1891999112,2cyclictest4422-21users09:45:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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