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2025-07-02 - 06:35
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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 rackcslot4.osadl.org (updated Wed Jul 02, 2025 00:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3639022327285,27sleep10-21swapper/119:07:071
3641212324282,27sleep00-21swapper/019:09:300
36429899135130,3cyclictest368242-21kworker/u8:120:58:201
125899650,3rtkit-daemon1257-21rtkit-daemon00:10:251
125899560,4rtkit-daemon1257-21rtkit-daemon21:17:191
4093572540,4sleep00-21swapper/021:00:120
4165002530,2sleep10-21swapper/121:14:141
36429899533,11cyclictest533810-21apt-get23:55:191
36429899523,8cyclictest421277-40apt-check21:20:111
4708612510,6sleep10-21swapper/122:26:571
36429899513,8cyclictest472481-21apt-get22:30:151
125899510,4rtkit-daemon1257-21rtkit-daemon19:53:361
125899510,3rtkit-daemon1257-21rtkit-daemon22:08:371
36429899503,7cyclictest551310-21apt-get00:20:151
36429899503,6cyclictest458024-21apt-get22:10:161
36429899482,6cyclictest530127-21apt-get23:50:131
125899480,3rtkit-daemon1257-21rtkit-daemon19:37:400
36429899462,8cyclictest512192-21apt-get23:25:191
36429899462,6cyclictest479630-21apt-get22:40:181
5073072450,4sleep10-21swapper/123:17:471
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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