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2025-07-07 - 02:10
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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 rackbslot1.osadl.org (updated Sun Jul 06, 2025 12:44:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35255622205181,14sleep00-21swapper/007:06:290
35257502204181,13sleep20-21swapper/207:08:522
35256622204175,19sleep10-21swapper/107:07:461
35255652195168,17sleep30-21swapper/307:06:313
372907021470,1sleep03729067-21ntpq10:25:260
3526054996057,2cyclictest40654-21chrome11:45:010
352605999590,1cyclictest427-21jbd2/mmcblk0p2-811:45:012
3526054995752,4cyclictest3567622-21kworker/u8:3+events_unbound07:50:100
36122852550,1sleep03612284-21openvpn08:30:290
3526059995551,3cyclictest3485275-21kworker/u8:1+events_unbound07:35:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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