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2025-01-14 - 08:24
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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
Characteristics of the 20 highest latencies:
System rack6slot6 (updated Tue Jan 14, 2025 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40599910695553437,53472cyclictest1209-21kworker/0:022:19:210
40599910691953413,53450cyclictest0-21swapper19:19:300
40599910680453478,53236cyclictest4052-21cyclictest20:08:340
40599910679653449,53256cyclictest0-21swapper21:19:440
40599910675253459,53202cyclictest4052-21cyclictest00:30:390
40599910666753429,53238cyclictest0-21swapper19:55:200
40599910666653470,53131cyclictest0-21swapper22:07:480
40599910660753459,53148cyclictest0-21swapper20:32:510
40599910658153437,53046cyclictest17007-21ssh00:15:550
40599910652153481,53040cyclictest0-21swapper20:58:180
40599910651453466,53048cyclictest0-21swapper21:21:250
40599910651253472,53040cyclictest0-21swapper19:30:530
40599910651253435,53077cyclictest0-21swapper21:05:100
40599910649453409,53085cyclictest0-21swapper19:20:100
40599910647153462,53009cyclictest0-21swapper20:27:090
40599910644553445,53000cyclictest0-21swapper19:46:170
40599910637053465,52842cyclictest9-21ksoftirqd/023:41:050
40599910626253390,52807cyclictest0-21swapper00:14:450
40599910623753389,52806cyclictest0-21swapper19:53:590
40599910621153409,52767cyclictest0-21swapper19:13:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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