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2026-08-28 - 09:09
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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 28, 2026 00:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502310,0irq/45-4a10000021932-21kworker/0:219:05:310
160312910,0sleep014120-1kworker/u3:019:44:230
37222900,0sleep027588-1kworker/u3:220:43:270
7450890,0irq/46-4a10000019906-21runrttasks21:29:500
7350880,0irq/45-4a10000032325-21users23:40:310
7350870,0irq/45-4a1000009311-21df_abs20:59:350
7350870,0irq/45-4a10000018199-21/usr/sbin/munin23:00:070
7350870,0irq/45-4a10000012810-21expr22:44:430
171722870,0sleep08717-1kworker/u3:221:21:460
7350860,0irq/45-4a100000454-21snmpd23:59:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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