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2025-07-07 - 02:13
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rack2slot7.osadl.org (updated Mon Jul 07, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
398621199411,36cyclictest4034362-21aten_r2power_vo21:21:550
398621199402,24cyclictest4060817-21ntpq21:51:540
3986212993913,20cyclictest619-21mta-sts-daemon21:19:211
398621199369,13cyclictest0-21swapper/000:01:500
3986211993610,21cyclictest4160619-21ssh23:46:510
3986211993518,2cyclictest4078090-21ntpq22:11:520
398621199350,33cyclictest191rcuc/023:21:560
398621199341,22cyclictest4064938-21/usr/sbin/munin21:56:520
3986211993217,2cyclictest4166925-21cat23:53:570
398621199313,13cyclictest404413650ssh21:32:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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