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2025-12-10 - 02:35
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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 Wed Dec 10, 2025 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24470224122176,182sleep00-21swapper17:35:530
253209916813,129cyclictest13259-21/usr/sbin/munin21:11:350
253209916617,125cyclictest23478-21apt-get21:40:330
253209916615,125cyclictest25386-21apt-get20:10:230
253209916517,121cyclictest8675-21irqstats20:56:190
253209916418,122cyclictest30304-21apt-get22:00:320
253209916417,105cyclictest12036-21irqstats21:06:150
253209916416,123cyclictest9910-21apt-get21:00:250
253209916414,125cyclictest29132-21memory21:56:260
253209916413,127cyclictest18114-21/usr/sbin/munin23:01:160
253209916318,121cyclictest1273-21munin-run20:35:040
253209916318,105cyclictest1278-21apt-get22:10:260
253209916315,123cyclictest4798-21apt-get20:45:250
253209916312,126cyclictest18578-21cpu21:25:430
25320991629,111cyclictest21810-21ssh19:59:510
253209916220,98cyclictest21788-21apt-get21:35:260
253209916220,103cyclictest13739-21ntp_states22:46:330
253209916218,121cyclictest29043-21ssh20:20:500
253209916216,121cyclictest10239-21irqstats22:36:130
253209916213,124cyclictest30876-21ssh20:26:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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