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2025-12-31 - 18:14
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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 Wed Dec 31, 2025 12:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
234629912646,59cyclictest23454-21cyclictest12:02:580
234629912646,59cyclictest23454-21cyclictest12:02:580
234629911939,50cyclictest20138-21ssh09:44:490
2198421186,17sleep10-21swapper/107:04:301
2198421186,17sleep10-21swapper/107:04:301
234629911443,64cyclictest0-21swapper/010:54:420
234629911426,51cyclictest0-21swapper/009:34:470
234629911426,51cyclictest0-21swapper/009:34:470
23462991123,66cyclictest17198-21apt-get10:34:450
23462991123,66cyclictest17198-21apt-get10:34:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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