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2024-11-22 - 16:49
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackcslot4.osadl.org (updated Fri Nov 22, 2024 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3090702264188,28sleep10-21swapper/107:05:061
3105002253190,47sleep00-21swapper/007:06:310
4552962650,4sleep1455294-21ssh11:10:281
3991672590,3sleep10-21swapper/110:00:221
113399590,4rtkit-daemon1132-21rtkit-daemon10:43:170
113399580,6rtkit-daemon1132-21rtkit-daemon12:27:340
113399570,3rtkit-daemon1132-21rtkit-daemon10:37:261
4856492530,4sleep00-21swapper/011:49:440
4106762530,4sleep10-21swapper/110:14:571
113399510,4rtkit-daemon1132-21rtkit-daemon09:57:030
113399510,4rtkit-daemon1132-21rtkit-daemon09:02:480
113399500,4rtkit-daemon1132-21rtkit-daemon07:32:161
4050502490,4sleep10-21swapper/110:07:411
113399480,4rtkit-daemon1132-21rtkit-daemon12:03:380
113399480,4rtkit-daemon1132-21rtkit-daemon11:53:590
113399480,4rtkit-daemon1132-21rtkit-daemon08:00:080
3899032470,5sleep10-21swapper/109:49:421
113399450,5rtkit-daemon372533-21apt-get09:25:201
113399450,5rtkit-daemon372533-21apt-get09:25:201
113399450,4rtkit-daemon1132-21rtkit-daemon11:42:091
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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