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2025-12-10 - 22:12
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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
Characteristics of the 10 highest latencies:
System rackcslot4.osadl.org (updated Wed Dec 10, 2025 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16016882261189,26sleep00-21swapper/007:09:270
16015762245202,28sleep10-21swapper/107:08:171
175208021110,4sleep00-21swapper/011:23:530
125899740,4rtkit-daemon1257-21rtkit-daemon10:17:400
125899730,4rtkit-daemon1257-21rtkit-daemon10:24:500
125899730,3rtkit-daemon1257-21rtkit-daemon09:15:220
125899720,3rtkit-daemon1257-21rtkit-daemon09:32:140
125899710,4rtkit-daemon1257-21rtkit-daemon09:13:160
160187999633,40cyclictest1673990-21apt-get09:40:151
125899610,4rtkit-daemon1257-21rtkit-daemon09:06:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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