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2025-11-21 - 22:23
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack5slot7.osadl.org (updated Fri Nov 21, 2025 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31577224380,12sleep024719-1kworker/u3:405:36:370
325429917318,126cyclictest5946-21apt-get08:31:190
325429917118,126cyclictest18759-21apt-get10:51:190
325429916922,120cyclictest9602-21users10:22:480
325429916716,126cyclictest5575-21apt-get10:11:200
325429916618,103cyclictest26728-21apt-get09:36:190
325429916613,128cyclictest18362-21sshd09:09:170
325429916533,112cyclictest16240-21unixbench_singl10:42:380
325429916518,123cyclictest7588-21apt-get08:36:180
325429916416,124cyclictest15648-21apt-get09:01:200
325429916416,105cyclictest13707-21apt-get10:36:220
325429916335,102cyclictest3920-21/usr/sbin/munin10:06:420
325429916317,120cyclictest1006-21apt-get08:16:190
325429916314,125cyclictest29885-21apt-get09:46:140
325429916220,117cyclictest27103-21apt-get07:56:180
325429916218,101cyclictest18723-21latency_hist10:51:060
325429916217,120cyclictest23782-21apt-get11:06:180
325429916217,120cyclictest12283-21munin-run08:51:020
325429916217,103cyclictest14046-21apt-get08:56:150
325429916216,120cyclictest12438-21rm08:51:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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