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2026-04-20 - 13:46
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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 20 highest latencies:
System rack4slot2.osadl.org (updated Mon Apr 20, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11297212510,0chrt6055-1kworker/u3:007:04:060
7450960,0irq/46-4a10000012519-21diskstats08:40:410
11494999674,0cyclictest0-21swapper11:46:130
7450950,0irq/46-4a10000032641-21/usr/sbin/munin09:41:080
7450950,0irq/46-4a1000003233-21sshd11:23:300
7450940,0irq/46-4a1000006217-21cat09:56:140
11494999472,0cyclictest0-21swapper10:10:500
7450930,0irq/46-4a1000008751-21sshd11:40:300
7450930,0irq/46-4a1000007879-21/usr/sbin/munin08:26:110
7450930,0irq/46-4a1000005143-21cron11:30:180
7450930,0irq/46-4a10000027192-21chrt07:48:230
7450930,0irq/46-4a10000026401-21chrt12:31:010
7450930,0irq/46-4a10000025746-21/usr/sbin/munin07:45:200
7450930,0irq/46-4a10000025166-21ls09:16:290
7450930,0irq/46-4a10000020363-21chrt12:13:580
7450930,0irq/46-4a10000019006-21sshd10:35:300
7450930,0irq/46-4a10000016141-21irqstats08:50:570
7450930,0irq/46-4a10000014660-21rt-features10:21:130
7450930,0irq/46-4a10000011503-21timerwakeupswit08:36:180
7450920,0irq/46-4a1000009293-21interrupts08:30:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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