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2026-04-01 - 02:58
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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 rack7slot8.osadl.org (updated Tue Mar 31, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18498221934,49sleep00-21swapper/007:08:530
186939916527,16cyclictest10250irq/56-4a10000007:38:580
18693991628,23cyclictest6407-21diskstats10:35:350
186939916224,120cyclictest787-21haveged12:05:020
186939916122,16cyclictest1408-21nginx12:11:170
186939916029,115cyclictest30751-21wget10:05:130
186939915937,112cyclictest32235-21/usr/sbin/munin08:00:500
18693991588,19cyclictest24334-21diskstats09:40:230
18693991587,17cyclictest1540-21apt-get10:17:060
186939915825,20cyclictest1408-21nginx09:34:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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