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2025-12-28 - 13:18
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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 20 highest latencies:
System rackeslot3.osadl.org (updated Sun Dec 28, 2025 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2562561996342,19cyclictest2562431-21kworker/1:319:25:131
2562561996243,18cyclictest2562431-21kworker/1:319:40:011
2562561996142,18cyclictest2039135-1kworker/1:0H22:45:141
2562561996142,17cyclictest2626703-21kworker/1:022:40:001
2562561996142,17cyclictest2039135-1kworker/1:0H20:40:171
2562561996044,15cyclictest2575774-21kworker/1:219:50:001
2562561996043,16cyclictest2634426-21kworker/1:323:05:141
2562561996043,16cyclictest2614355-21kworker/1:222:05:151
2562561995943,15cyclictest2664040-21kworker/1:000:26:351
2562561995943,15cyclictest2653208-21kworker/1:200:05:161
2562561995943,15cyclictest2653208-21kworker/1:200:05:161
2562561995943,15cyclictest2614355-21kworker/1:221:50:001
2562561995943,15cyclictest2582457-21kworker/1:120:11:381
2562561995943,15cyclictest2579355-21kworker/1:020:20:171
2562561995943,15cyclictest2562431-21kworker/1:319:20:091
2562561995942,16cyclictest2653208-21kworker/1:200:20:341
2562561995942,16cyclictest2643158-21kworker/1:123:45:001
2562561995942,16cyclictest2643158-21kworker/1:123:21:341
2562561995942,16cyclictest2039135-1kworker/1:0H23:30:151
2562561995939,18cyclictest2595311-21kworker/1:220:55:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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