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2026-08-01 - 22:46
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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
Characteristics of the 20 highest latencies:
System rackdslot0.osadl.org (updated Sat Aug 01, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1446699350,34cyclictest0-21swapper/111:49:021
14467992624,2cyclictest0-21swapper/212:22:242
1446799247,16cyclictest3789-21sort10:35:212
1446699240,23cyclictest0-21swapper/108:51:591
14466992320,2cyclictest19792-21grep09:10:151
1446699230,5cyclictest0-21swapper/107:36:021
1446599230,5cyclictest0-21swapper/007:30:150
1446599226,2cyclictest6690-21grep10:40:150
1446599220,4cyclictest0-21swapper/011:43:410
1446699204,15cyclictest21-21ksoftirqd/108:45:011
1446699202,1cyclictest0-21swapper/111:40:461
1446699200,19cyclictest0-21swapper/111:05:151
1446699200,16cyclictest0-21swapper/111:50:151
14465992014,5cyclictest0-21swapper/011:40:000
14467991917,1cyclictest0-21swapper/209:55:182
14467991917,1cyclictest0-21swapper/208:35:202
14467991914,3cyclictest0-21swapper/209:03:572
1446799190,4cyclictest399-20systemd-journal11:40:012
1446699192,16cyclictest0-21swapper/109:51:461
1446699192,16cyclictest0-21swapper/108:49:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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