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2024-11-22 - 10:30
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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 rack0slot8.osadl.org (updated Thu Nov 21, 2024 12:46:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7142549947325,30cyclictest0-21swapper/711:24:5513
71425799462460,1cyclictest2430412-21TaskCon~ller15
7142549946031,428cyclictest7912-21firefox09:54:5513
7142549944721,30cyclictest0-21swapper/709:24:5513
7142489944619,423cyclictest7940-21IPC1
7142619944012,30cyclictest0-21swapper/1308:09:265
7142579943913,29cyclictest0-21swapper/912:27:4515
714261994297,30cyclictest0-21swapper/1307:45:405
714248994260,29cyclictest0-21swapper/110:03:241
7142529942526,394cyclictest4109357-21Isolated21:43:2011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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