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2026-05-28 - 12:09
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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 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502630,0irq/46-4a10000012-21ksoftirqd/018:59:120
839029110,0sleep08388-21diskstats23:59:150
3914998552,0cyclictest0-21swapper20:34:040
3914998260,0cyclictest20629-21/usr/sbin/munin21:24:340
3914998258,0cyclictest0-21swapper22:44:020
7450810,0irq/46-4a10000026223-21seq20:05:040
7350810,0irq/45-4a1000009626-21sh19:18:510
3914997955,0cyclictest0-21swapper21:43:580
3914997853,0cyclictest0-21swapper22:48:590
7450770,0irq/46-4a100000194332sleep000:30:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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