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2024-07-27 - 03:33
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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 rackbslot7.osadl.org (updated Fri Jul 26, 2024 12:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1766212918,78sleep11782-21modprobe07:06:321
172421006,14sleep00-21swapper/007:05:580
192999943,62cyclictest400-21runrttasks09:41:593
1912998759,18cyclictest24954-21sendmail08:16:321
1912998759,18cyclictest24954-21sendmail08:16:321
110028722,30sleep30-21swapper/307:02:403
1929998333,20cyclictest363-21in:imklog09:22:513
191999834,55cyclictest31467-21apt-get11:36:462
1912998351,24cyclictest25-21ksoftirqd/108:31:351
1912998351,24cyclictest25-21ksoftirqd/108:31:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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