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2023-02-03 - 23:40

x86 Intel Atom E3845 @1915 MHz, Linux 4.19.37-rt20 (Profile)

Latency plot of system in rack #b, slot #6
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 rackbslot6.osadl.org (updated Fri Feb 03, 2023 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1054221500,5sleep32132199cyclictest17:02:143
911911050,4ptp4l401ktimersoftd/311:35:383
24122700,1sleep20-21swapper/215:43:382
274892650,3sleep12130699cyclictest14:27:041
21313996118,11cyclictest16518-21ssh16:33:422
276972570,1sleep30-21swapper/311:48:333
210402544,39sleep00-21swapper/011:36:180
209732544,39sleep10-21swapper/111:35:261
320602530,1sleep00-21swapper/016:14:400
21313995213,13cyclictest21623-21ssh14:54:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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