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2021-06-17 - 20:18

Intel(R) Core(TM) i7-3632QM CPU @ 2.20GHz, Linux 4.19.1-rt3 (Profile)

Latency plot of system in rack #6, slot #3
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack6slot3.osadl.org (updated Thu Jun 17, 2021 12:46:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3268926733,0sleep70-21swapper/707:07:447
36326632,0sleep10-21swapper/107:09:471
3271326633,0sleep40-21swapper/407:08:054
3245125933,0sleep30-21swapper/307:05:323
3256725827,0sleep20-21swapper/207:06:042
33825640,0sleep50-21swapper/507:09:285
33025438,0sleep60-21swapper/607:09:206
3083325336,0sleep00-21swapper/007:05:050
711330,0ktimersoftd/70-21swapper/710:42:397
551330,0ktimersoftd/50-21swapper/510:29:335
391330,0ktimersoftd/30-21swapper/311:13:503
231330,0ktimersoftd/10-21swapper/110:42:391
774993231,0cyclictest38-21rcuc/308:00:313
711320,0ktimersoftd/70-21swapper/710:17:257
631320,0ktimersoftd/60-21swapper/610:42:386
391320,0ktimersoftd/320915-21ssh11:00:393
391320,0ktimersoftd/317087-21ssh12:17:093
391320,0ktimersoftd/30-21swapper/312:36:063
391320,0ktimersoftd/30-21swapper/312:29:403
391320,0ktimersoftd/30-21swapper/312:21:533
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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