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2026-09-18 - 17:03
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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 Sep 18, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501920,0irq/46-4a10000014130-21runrttasks07:09:300
14209999574,0cyclictest0-21swapper08:20:080
7450940,0irq/46-4a10000022818-1kworker/u3:209:08:470
7450930,0irq/46-4a10000016488-1kworker/u3:008:50:580
7450920,0irq/46-4a100000442-21snmpd12:20:040
7450920,0irq/46-4a1000003908-21/usr/sbin/munin09:45:370
7450920,0irq/46-4a10000028686-21/usr/sbin/munin12:34:530
7450920,0irq/46-4a10000026933-21wget07:44:520
7450920,0irq/46-4a10000025950-21pluginstate12:25:310
7450920,0irq/46-4a10000025210-21wget10:49:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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