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2026-08-04 - 10:09
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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 Tue Aug 04, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
231243699623,19cyclictest0-21swapper/120:30:151
231243899590,58cyclictest2357227-21kworker/u32:021:30:143
231244099550,55cyclictest0-21swapper/522:20:185
2312439994928,20cyclictest2444495-21date23:10:014
2312435994910,39cyclictest0-21swapper/000:15:180
231243699479,19cyclictest0-21swapper/122:05:181
231243599468,19cyclictest0-21swapper/021:50:160
231243799413,19cyclictest0-21swapper/222:15:162
231244399401,19cyclictest236199-21snmpd22:40:166
2312443993919,19cyclictest1086-21runrttasks22:25:186
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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