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2026-09-03 - 05:44
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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 rackfslot7.osadl.org (updated Thu Sep 03, 2026 00:46:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1516494998021,39cyclictest1603038-21ntpq21:45:206
1516491998062,18cyclictest0-21swapper/419:10:164
1516494997538,18cyclictest781ktimers/600:21:066
1516494997537,19cyclictest236199-21snmpd00:04:526
1516494997414,59cyclictest1638788-21meminfo22:50:196
1516487997455,19cyclictest171ktimers/000:20:140
1516494997231,40cyclictest0-21swapper/623:00:056
1516494997133,18cyclictest0-21swapper/620:01:006
1516494997132,21cyclictest0-21swapper/620:27:486
1516494997112,19cyclictest236199-21snmpd21:12:406
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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