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2026-06-11 - 02:37
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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 Jun 11, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502660,0irq/46-4a10000012-21ksoftirqd/019:05:560
7450970,0irq/46-4a1000002413-21sendmail-msp23:19:520
7450950,0irq/46-4a1000009355-21/usr/sbin/munin23:40:460
7450950,0irq/46-4a1000009245-21sendmail-msp23:39:540
7450950,0irq/46-4a100000452-21snmpd22:00:320
7450950,0irq/46-4a10000025852-1kworker/u3:122:52:050
7450950,0irq/46-4a10000021782-21fw_packets21:05:260
7450950,0irq/46-4a10000020209-21meminfo19:25:310
213402950,0sleep020965-1kworker/u3:000:15:010
7450940,0irq/46-4a10000023486-21seq00:20:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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