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2025-12-04 - 18:57
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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 Thu Dec 04, 2025 12:44:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
662224562211,94sleep00-21swapper05:39:060
8379916719,24cyclictest24705-21irqstats11:06:290
8379916620,44cyclictest9993-21memory10:21:370
8379916522,27cyclictest32688-21df08:11:020
8379916517,62cyclictest7124-21users10:12:050
8379916344,22cyclictest25317-21sh09:29:310
8379916316,62cyclictest30975-21memory09:46:400
8379916243,21cyclictest27285-21diskmemload09:35:490
8379916142,22cyclictest22412-21sh07:35:510
8379916012,25cyclictest18970-21ssh10:49:110
8379916011,59cyclictest23288-21grep07:40:570
8379915919,47cyclictest32096-21apt-get09:50:450
8379915915,23cyclictest11821-21ssh10:26:490
8379915914,57cyclictest15083-21users08:56:510
8379915831,19cyclictest9800-21/usr/sbin/munin08:41:170
8379915713,57cyclictest21898-21users10:57:050
8379915712,48cyclictest25481-21/usr/sbin/munin07:46:540
8379915710,24cyclictest3791-21ssh08:21:440
8379915614,51cyclictest3639-21/usr/sbin/munin10:01:550
8379915614,23cyclictest12171-21munin-run06:40:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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