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2022-01-23 - 11:00

Intel(R) Atom(TM) Processor E3950 @ 1.60GHz, Linux 5.6.19-rt12 (Profile)

Latency plot of system in rack #9, slot #2
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 10 highest latencies:
System rack9slot2 (updated Sun Jan 23, 2022 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22672311273,24sleep20-21swapper/22
20732305266,26sleep30-21swapper/33
22362298262,24sleep10-21swapper/11
21332244213,19sleep00-21swapper/00
2374821600,2sleep10-21swapper/11
264762780,5sleep01-21systemd0
60652580,2sleep00-21swapper/00
212012550,2sleep30-21swapper/33
105282450,2sleep10-21swapper/11
181692400,3sleep318171-21awk3
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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