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2026-08-14 - 13:09
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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 14, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745010880,0irq/46-4a10000017521-1kworker/u3:219:06:530
247172930,0sleep023110-1kworker/u3:120:59:050
298302920,0sleep029626-1kworker/u3:021:14:040
272752900,0sleep026227-1kworker/u3:119:30:280
7350890,0irq/45-4a10000015624-21/usr/sbin/munin23:40:580
7450880,0irq/46-4a10000017679-21runrttasks20:37:240
7350880,0irq/45-4a100000454-21snmpd19:21:050
7350880,0irq/45-4a10000032641-21awk21:20:530
40152880,0sleep02381-1kworker/u3:021:32:320
7450870,0irq/46-4a1000005778-1kworker/u3:223:20:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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