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2022-07-07 - 02:36

x86 Intel Atom E640 @1000 MHz, Linux 3.18.11-rt7 (Profile)

Latency plot of system in rack #9, slot #4
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 rack9slot4.osadl.org (updated Thu Jul 07, 2022 00:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29619991218cyclictest0-21swapper/002:52:080
29619991198cyclictest0-21swapper/000:52:050
29619991198cyclictest0-21swapper/000:52:050
29316111980sleep0-21swapper/100:31:531
29619991179cyclictest0-21swapper/003:22:090
29619991148cyclictest0-21swapper/001:42:060
29619991138cyclictest0-21swapper/002:27:340
29619991138cyclictest0-21swapper/002:27:070
29619991138cyclictest0-21swapper/001:17:050
29619991129cyclictest0-21swapper/001:07:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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