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2021-06-17 - 20:01

Intel(R) Core(TM) i5-8365UE CPU @ 1.60GHz, Linux 5.9.1-rt18 (Profile)

Latency plot of system in rack #e, slot #1
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 -n -p90 -i200 -h400 -a2-3 -t2 -q done
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 rackeslot1.osadl.org (updated Thu Jun 10, 2021 12:44:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13301901614,1cyclictest0-21swapper/311:45:003
13301901614,1cyclictest0-21swapper/311:40:003
1330190160,1cyclictest0-21swapper/308:45:003
1330090160,15cyclictest0-21swapper/210:41:252
13301901515,0cyclictest0-21swapper/309:50:323
1330190150,15cyclictest0-21swapper/312:26:093
1330190150,15cyclictest0-21swapper/311:10:343
1330190150,15cyclictest0-21swapper/311:07:453
1330190150,15cyclictest0-21swapper/310:32:423
1330190150,15cyclictest0-21swapper/310:27:133
1330190150,15cyclictest0-21swapper/310:08:353
1330190150,15cyclictest0-21swapper/309:43:033
1330190150,15cyclictest0-21swapper/309:34:383
1330190150,15cyclictest0-21swapper/309:15:463
1330190150,15cyclictest0-21swapper/308:47:163
1330190150,15cyclictest0-21swapper/308:06:253
1330190150,15cyclictest0-21swapper/307:41:203
1330190150,15cyclictest0-21swapper/307:31:193
1330190150,15cyclictest0-21swapper/307:15:233
1330190150,15cyclictest0-21swapper/307:10:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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