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2025-09-15 - 23:00
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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 10 highest latencies:
System rack3slot0.osadl.org (updated Mon Sep 15, 2025 12:43:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
269325328,9sleep30-21swapper/306:51:523
316082520,0sleep50-21swapper/512:07:455
302952520,0sleep10-21swapper/112:11:021
270202500,0sleep50-21swapper/510:56:015
498524925,8sleep70-21swapper/706:54:127
306352490,0sleep70-21swapper/711:51:467
146752480,0sleep00-21swapper/011:27:040
98342470,0sleep20-21swapper/210:11:382
59102470,0sleep00-21swapper/010:47:230
151962460,1sleep115197-21grepconf.sh10:18:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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