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2026-05-02 - 06:57
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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 Sat May 02, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2007894991400,139cyclictest0-21swapper/021:10:140
2007898999113,59cyclictest2073560-21ld21:05:194
2007898998181,0cyclictest236199-21snmpd22:44:574
200789699780,19cyclictest0-21swapper/223:05:132
200789699760,75cyclictest0-21swapper/222:10:162
2007898997517,39cyclictest2088923-21sed21:35:014
2007898997233,38cyclictest0-21swapper/421:04:114
2007898997132,39cyclictest0-21swapper/420:44:174
2007898997032,38cyclictest0-21swapper/419:11:414
2007898996931,19cyclictest2134857-21ls22:55:254
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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