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2022-07-01 - 01:30

x86 Intel Xeon E3-1220L V2 @2300 MHz, Linux 4.18.7-rt5 (Profile)

Latency plot of system in rack #0, slot #1
Data to construct the above plot have been generated using the RT test utility cyclictest.
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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack0slot1.osadl.org (updated Fri Jul 01, 2022 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
159192800,0sleep30-21swapper/320:33:073
60192730,1sleep226656-21ntop22:57:012
186112620,0sleep30-21swapper/320:16:493
268212610,1sleep3421ktimersoftd/320:21:453
166212600,0sleep00-21swapper/021:08:290
75292590,0sleep30-21swapper/319:32:273
282162590,0sleep60-21swapper/600:00:186
93882560,1sleep343-21ksoftirqd/321:33:313
93882560,1sleep343-21ksoftirqd/321:33:313
191322550,0sleep10-21swapper/123:02:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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