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2021-06-17 - 19:43

Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz, Linux 5.4.17-rt9 (Profile)

Latency plot of system in rack #d, slot #0
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 -p99 -i200 -h400 -a0-2 -t3 -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 rackdslot0.osadl.org (updated Mon Feb 24, 2020 00:49:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
168272265259,3sleep10-21swapper/119:07:301
167552245239,3sleep00-21swapper/019:06:410
170312244237,4sleep20-21swapper/219:09:472
170322234227,4sleep30-21swapper/319:09:483
167282233227,3sleep40-21swapper/419:06:214
170482231224,4sleep50-21swapper/519:09:585
169602231225,3sleep70-21swapper/719:08:557
167522231224,4sleep60-21swapper/619:06:396
2525621220,0sleep70-21swapper/719:45:087
242922730,0sleep20-21swapper/220:30:052
100532680,0sleep00-21swapper/020:45:100
253852640,0sleep31730199cyclictest22:25:193
85002560,0sleep549-21ksoftirqd/520:00:045
17308992213,0cyclictest0-21swapper/422:39:364
17308992213,0cyclictest0-21swapper/422:39:354
1732299215,15cyclictest0-21swapper/723:20:007
1732299215,15cyclictest0-21swapper/721:00:007
17296992020,0cyclictest0-21swapper/220:39:262
160462180,0sleep50-21swapper/519:35:215
1732299170,16cyclictest0-21swapper/719:15:227
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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