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2024-05-20 - 17:19
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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 rack3slot6.osadl.org (updated Mon May 20, 2024 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2479121240,4sleep024794-21netstat11:05:300
3086321180,4chrt30862-21latency08:25:310
1283521170,4chrt12828-21ntp_states07:35:270
2045921140,4chrt20461-21head09:25:230
1415121120,4chrt14148-21ls09:10:020
241882880,5chrt24181-21unixbench_multi08:06:160
153412880,4chrt15343-21processes09:11:080
24892875,32sleep02511-21munin-run07:10:010
93852860,4chrt9383-21sshd10:23:230
254712850,5chrt25474-21unixbench-2d12:35:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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