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2026-11-15 - 05:12
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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 rackaslot8.osadl.org (updated Sun Nov 15, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
78652316290,17sleep20-21swapper/219:07:502
78342286256,20sleep10-21swapper/119:07:261
78222266234,21sleep00-21swapper/019:07:160
58162257223,22sleep30-21swapper/319:05:013
43252690,0sleep30-21swapper/300:08:383
242562630,0sleep00-21swapper/000:00:230
305952610,0sleep20-21swapper/221:29:352
278402600,0sleep20-21swapper/223:24:402
51982590,0sleep10-21swapper/100:28:431
270732590,0sleep10-21swapper/122:45:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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