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2026-09-01 - 09:46
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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 Sep 01, 2026 00:46:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3454397995820,17cyclictest0-21swapper/421:30:184
3454399995738,19cyclictest771rcuc/619:55:176
3454397995719,38cyclictest0-21swapper/419:30:224
345439999560,55cyclictest0-21swapper/620:40:206
3454395995316,36cyclictest0-21swapper/220:00:172
3454395995315,19cyclictest0-21swapper/222:10:172
3454399995214,38cyclictest0-21swapper/622:25:166
3454399995133,18cyclictest0-21swapper/621:15:176
3454399995114,18cyclictest0-21swapper/619:25:176
3454397995131,20cyclictest0-21swapper/422:38:584
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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