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2021-09-27 - 05:37

Intel(R) Core(TM) i3-4330T CPU @ 3.00GHz, Linux 4.9.47-rt37 (Profile)

Latency plot of system in rack #9, slot #6
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 rack9slot6.osadl.org (updated Mon Sep 27, 2021 00:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30907211153,30sleep30-21swapper/319:10:003
30687211052,30sleep10-21swapper/119:07:131
196232760,2sleep10-21swapper/123:35:341
3081527353,15sleep00-21swapper/019:08:520
3058126752,9sleep20-21swapper/219:05:552
80702280,0sleep00-21swapper/021:55:200
262562240,3sleep10-21swapper/123:50:211
3119599210,17cyclictest24809-21basename23:50:001
3119799200,19cyclictest0-21swapper/320:55:193
3119799200,18cyclictest0-21swapper/321:00:173
3119799190,3cyclictest256202sleep323:50:143
3119799190,3cyclictest0-21swapper/321:35:173
31195991815,2cyclictest0-21swapper/123:20:181
56392170,3sleep30-21swapper/323:05:123
31195991715,1cyclictest0-21swapper/122:30:171
3119599170,16cyclictest0-21swapper/121:30:181
3119499170,1cyclictest0-21swapper/019:40:150
11682170,1sleep21170-21crond00:09:592
3119799160,1cyclictest0-21swapper/321:25:223
31197991513,1cyclictest0-21swapper/323:45:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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