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2024-06-18 - 04:35
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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 20 highest latencies:
System rackaslot8.osadl.org (updated Mon Jun 17, 2024 12:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
270142284249,22sleep20-21swapper/207:09:082
271102283250,19sleep30-21swapper/307:09:453
267902281246,23sleep10-21swapper/107:06:121
271022259223,22sleep00-21swapper/007:09:370
273932600,0sleep20-21swapper/210:15:312
47842560,0sleep10-21swapper/107:30:161
280312560,0sleep00-21swapper/009:19:090
321532530,0sleep20-21swapper/210:20:162
86582190,1sleep38655-21fschecks_count11:00:163
2725399108,1cyclictest28-21ksoftirqd/212:39:592
2725399108,1cyclictest28-21ksoftirqd/212:29:592
2725399108,1cyclictest28-21ksoftirqd/212:19:592
2725399108,1cyclictest28-21ksoftirqd/210:55:002
2725399108,1cyclictest28-21ksoftirqd/208:45:012
30007290,0sleep20-21swapper/209:47:112
272539997,2cyclictest28-21ksoftirqd/211:15:012
272539997,2cyclictest271rcuc/210:00:102
272539997,1cyclictest28-21ksoftirqd/211:25:002
272539996,2cyclictest28-21ksoftirqd/211:20:002
272539995,3cyclictest28-21ksoftirqd/209:30:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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