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2026-07-16 - 03:12
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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 Jul 16, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745011160,0irq/46-4a1000004150-1kworker/u3:219:06:240
4679999278,0cyclictest20391-21/usr/sbin/munin19:54:410
4679999072,0cyclictest319-21/usr/sbin/munin20:29:480
4679998972,0cyclictest18888-21/usr/sbin/munin22:59:520
4679998970,0cyclictest13348-21fschecks_time19:34:190
4679998869,0cyclictest26822-21df_abs21:49:080
4679998860,0cyclictest0-21swapper22:09:140
4679998767,0cyclictest21359-21latency_hist23:08:500
4679998767,0cyclictest1395-21fschecks_time20:34:180
4679998673,0cyclictest10111-21/usr/sbin/munin22:34:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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