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2026-08-09 - 03:47
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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 Sun Aug 09, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502730,0irq/46-4a10000030765-1kworker/u3:119:05:260
7450970,0irq/46-4a1000009362-21/usr/sbin/munin21:09:570
7450950,0irq/46-4a10000028167-21sendmail-msp23:39:570
7450950,0irq/46-4a10000026426-21cron20:24:550
7450940,0irq/46-4a1000009784-21df_inode19:35:170
7450940,0irq/46-4a1000007632-21cron21:04:550
7450940,0irq/46-4a1000006555-21/usr/sbin/munin22:35:320
7450940,0irq/46-4a10000031590-21sendmail-msp20:40:210
7450940,0irq/46-4a10000030792-21/usr/sbin/munin23:45:490
7450940,0irq/46-4a10000027278-21ntp_offset22:00:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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