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2025-04-04 - 12:04
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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 10 highest latencies:
System rack0slot7.osadl.org (updated Fri Apr 04, 2025 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1011031992946,9cyclictest770151-21gnome-shell20:25:0012
1011027992800,1cyclictest0-21swapper/220:24:598
101103299233228,2cyclictest157129-21Isolated15:32:2213
10110539923117,120cyclictest0-21swapper/1523:05:077
10110539922917,118cyclictest0-21swapper/1519:25:037
1011034992162,118cyclictest0-21swapper/921:40:0515
10097822216197,13sleep120-21swapper/1219:05:454
1011034992090,117cyclictest0-21swapper/919:25:0315
10110539920518,82cyclictest0-21swapper/1522:10:007
10088412200194,4sleep30-21swapper/319:05:369
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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