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2025-12-25 - 11:36
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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 Dec 25, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502750,0irq/45-4a1000007375-1kworker/u3:019:05:210
7350990,0irq/45-4a1000002266-21/usr/sbin/munin20:20:560
7450950,0irq/46-4a10000023841-21apt00:34:470
7450940,0irq/46-4a1000007234-21if_err_eth022:10:260
7450940,0irq/46-4a10000012916-21swap00:01:040
7450930,0irq/46-4a10000028812-21sendmail-msp21:39:520
7450930,0irq/46-4a10000019339-21meminfo22:45:400
7450930,0irq/46-4a10000015191-21chrt00:09:190
7450930,0irq/46-4a1000001260-1kworker/u3:223:31:140
7350930,0irq/45-4a10000030535-21runrttasks20:09:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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