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2023-11-29 - 16:19
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack5slot4.osadl.org (updated Wed Nov 29, 2023 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3153212362,7sleep00-21swapper/007:08:470
3171210999,7sleep30-21swapper/307:09:033
2176210897,7sleep20-21swapper/207:05:252
3209210290,7sleep10-21swapper/107:09:331
275992920,0sleep127598-21ssh11:52:171
21112650,0sleep30-21swapper/311:40:173
191162650,0sleep08-21rcu_preempt10:55:330
292872600,0sleep30-21swapper/309:15:293
29412580,0sleep30-21swapper/310:27:233
76172570,0sleep00-21swapper/008:05:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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