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2026-05-29 - 00:33
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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 10 highest latencies:
System rack4slot2.osadl.org (updated Thu May 28, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502020,0irq/45-4a10000020876-21/usr/sbin/munin06:59:390
214289910279,0cyclictest21847-21diskstats07:04:130
214289910276,0cyclictest32702-21diskstats07:34:120
214289910180,0cyclictest29294-21diskstats10:34:120
214289910176,0cyclictest12491-21meminfo11:19:280
214289910079,0cyclictest29124-21cpu07:24:020
214289910078,0cyclictest5265-21df10:59:050
214289910078,0cyclictest17285-21df_abs11:34:080
214289910078,0cyclictest10709-21irqstats09:39:270
214289910075,0cyclictest5647-21memory07:49:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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