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2024-07-16 - 08:15
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack9slot2.osadl.org (updated Mon Jul 15, 2024 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35372266182,69sleep10-21swapper/11
40922258177,50sleep00-21swapper/00
40942248180,55sleep20-21swapper/22
35442237185,39sleep30-21swapper/33
2838621550,2sleep20-21swapper/22
293512470,2sleep30-21swapper/33
4418994310,18cyclictest0-21swapper/22
192252420,1sleep319228-21sort3
58752410,3sleep3442299cyclictest3
440599402,22cyclictest24503-21runrttasks0
4405993911,25cyclictest6736-21cat0
440599362,27cyclictest14202-21apt-get0
4405993615,19cyclictest8313-21cat0
4405993615,19cyclictest6014-21seq0
441899350,32cyclictest17959-21sendmail-mta2
4405993514,18cyclictest29262-21processes0
4405993513,19cyclictest18681-21fw_packets0
4405993512,20cyclictest3546-21seq0
4405993511,21cyclictest2727-21awk0
440599350,3cyclictest13198-21/usr/sbin/munin0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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