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2021-06-20 - 02:16

Intel(R) Core(TM) i9-9900K CPU @ 3.60GHz, Linux 5.10.1-rt20 (Profile)

Latency plot of system in rack #0, slot #3
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 rack0slot3.osadl.org (updated Sun Jun 20, 2021 00:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283412394376,11sleep120-21swapper/1219:06:344
284872355316,12sleep70-21swapper/719:08:3713
282782344303,12sleep60-21swapper/619:05:3912
284002341320,15sleep130-21swapper/1319:07:235
285702340322,11sleep100-21swapper/1019:09:452
285922338321,11sleep80-21swapper/819:09:5814
283962338322,11sleep90-21swapper/919:07:1815
285862335317,11sleep50-21swapper/519:09:5611
285232334317,11sleep40-21swapper/419:09:0710
285032333316,11sleep10-21swapper/119:08:481
283272333324,6sleep150-21swapper/1519:06:207
284072332316,10sleep30-21swapper/319:07:289
283432332315,11sleep140-21swapper/1419:06:366
252402332316,10sleep20-21swapper/219:05:028
283662329312,11sleep00-21swapper/019:06:530
283402327310,11sleep110-21swapper/1119:06:333
28770996058,0cyclictest0-21swapper/521:23:5211
28776995517,0cyclictest0-21swapper/1119:15:103
58042380,0sleep10-21swapper/120:35:011
71062330,0sleep60-21swapper/623:55:2212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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