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2022-01-23 - 11:04

Intel(R) Celeron(R) CPU G1620 @ 2.70GHz, Linux 5.10.35-rt39 (Profile)

Latency plot of system in rack #8, slot #7
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: ondemand
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack8slot7.osadl.org (updated Sun Jan 23, 2022 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
114299200,2cyclictest10894-21x2golistsession22:09:540
114399180,17cyclictest16039-21pmu-power00:35:261
1143991717,0cyclictest0-21swapper/122:06:321
1143991715,1cyclictest17320-21x2gosqlitewrapp21:46:111
114399170,16cyclictest6430-21x2golistsession22:34:021
114299170,1cyclictest7033-21diskmemload00:12:400
1143991614,1cyclictest15261-21ssh22:40:521
114399160,16cyclictest0-21swapper/123:29:381
114399160,16cyclictest0-21swapper/100:18:411
114399160,15cyclictest0-21swapper/123:37:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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