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2026-05-17 - 18:52
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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 10 highest latencies:
System rackbslot7.osadl.org (updated Sun May 17, 2026 12:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
985821590,19sleep00-21swapper/006:56:450
9272213312,81sleep29322-21fschecks_count06:56:272
106059911594,9cyclictest0-21swapper/111:01:171
106059911594,9cyclictest0-21swapper/111:01:171
10594991153,47cyclictest18753-21apt-get09:01:480
10594991153,47cyclictest18753-21apt-get09:01:480
105949911377,29cyclictest26080-21sh11:01:170
105949911377,29cyclictest26080-21sh11:01:170
10594991112,28cyclictest6803-21ssh12:16:310
105949910952,50cyclictest298-21in:imuxsock09:56:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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