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2025-12-23 - 11:02
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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 20 highest latencies:
System rackbslot6.osadl.org (updated Tue Dec 23, 2025 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
239922960,5sleep20-21swapper/219:11:062
1552321610,4sleep1387399cyclictest21:51:181
1068911580,8ptp4l16184-21kworker/3:119:13:453
756721310,4sleep0386799cyclictest22:41:190
106891810,14ptp4l401ktimersoftd/323:11:093
93242690,4sleep39327-21needreboot22:46:113
106891660,1ptp4l401ktimersoftd/323:05:553
36602624,46sleep00-21swapper/019:14:200
83902600,2sleep30-21swapper/321:36:143
386799586,13cyclictest16952-21grep20:46:170
3867995810,11cyclictest29345-21/usr/sbin/munin20:06:060
326152580,5sleep0101ktimersoftd/021:21:060
386799579,12cyclictest14548-21/usr/sbin/munin21:51:060
386799579,11cyclictest25168-21taskset21:06:040
386799579,11cyclictest12932-21ls19:31:060
386799579,11cyclictest12932-21ls19:31:060
386799578,12cyclictest11055-21timerwakeupswit19:26:160
173202570,2sleep30-21swapper/321:56:093
386799566,20cyclictest2197-21grep22:31:120
386799559,13cyclictest7102-21ls21:36:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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