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2026-08-29 - 12:23
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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 Aug 29, 2026 00:46:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
164875991010,100cyclictest0-21swapper/123:50:111
16487599845,40cyclictest179963-21sed19:35:171
16487599780,77cyclictest0-21swapper/100:20:151
16487599780,77cyclictest0-21swapper/100:20:141
164875996931,19cyclictest270742-21ntpq22:20:191
164875996931,19cyclictest101750irq/41-eno2-TxRx-222:55:181
164877996823,44cyclictest0-21swapper/320:30:013
164876996727,39cyclictest43-21ksoftirqd/222:15:152
16487599679,39cyclictest333538-21if_eno500:15:161
16487599668,39cyclictest303653-21ldconfig23:20:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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