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2026-08-19 - 08:44
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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 Wed Aug 19, 2026 00:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73501910,0irq/45-4a10000015250-21kworker/0:219:05:070
7350980,0irq/45-4a1000002264-21/usr/sbin/munin22:40:340
25752960,0sleep023220-1kworker/u3:200:15:370
279372950,0sleep026475-1kworker/u3:119:12:190
7350930,0irq/45-4a1000008854-21fw_forwarded_lo23:00:160
7450920,0irq/46-4a10000021927-21sendmail-msp23:41:550
7450910,0irq/46-4a1000005878-21grep21:15:310
7450910,0irq/46-4a10000031757-21users19:20:480
7450910,0irq/46-4a1000003135-21sendmail-msp00:20:440
7450910,0irq/46-4a10000022787-21open_files22:05:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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