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2026-08-07 - 11:48
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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 Fri Aug 07, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
132442397126,0sleep011837-21kworker/0:119:05:190
7450980,0irq/46-4a10000026356-21mailstats21:15:560
7450960,0irq/46-4a10000024275-21uniq00:20:340
7450960,0irq/46-4a10000022010-21sendmail-msp22:40:210
7450950,0irq/46-4a1000005773-21/usr/sbin/munin23:25:510
7450950,0irq/46-4a10000022316-21df19:30:160
7450940,0irq/46-4a10000032666-21runrttasks21:35:250
7450940,0irq/46-4a10000018597-21sendmail-msp19:20:180
7450940,0irq/46-4a10000016012-21open_inodes20:45:520
7450940,0irq/46-4a10000013520-21sed23:50:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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