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2026-04-03 - 18:43
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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 Fri Apr 03, 2026 12:44:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
70459912641,50cyclictest22909-21ssh11:59:070
70459912641,50cyclictest22909-21ssh11:59:070
7054991173,89cyclictest6310-21apt-get09:44:122
7054991173,89cyclictest6310-21apt-get09:44:122
690421119,73sleep06935-21munin-run07:03:560
690421119,73sleep06935-21munin-run07:03:560
70549910719,37cyclictest18990-21seq07:39:112
70549910719,37cyclictest18990-21seq07:39:112
1946221000,20sleep014209-21diskmemload10:59:110
7054999959,34cyclictest18029-21ssh10:03:562
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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