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2026-06-28 - 10:08
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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 20 highest latencies:
System rack4slot2.osadl.org (updated Sun Jun 28, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502370,0irq/45-4a1000008715-21kworker/0:219:04:520
273532936,0sleep027369-21/usr/sbin/munin19:55:070
7450910,0irq/46-4a10000031871-21cron21:44:320
7350870,0irq/45-4a1000004569-21sendmail-msp21:59:560
7350870,0irq/45-4a10000016654-21munin-node20:59:420
7350870,0irq/45-4a10000010357-21irqstats20:40:160
7450860,0irq/46-4a100000438-21snmpd22:52:400
7450850,0irq/46-4a100000519-1kworker/u3:221:52:320
7450850,0irq/46-4a10000026778-21munin-run19:54:340
7350850,0irq/45-4a10000021674-21sendmail-msp19:40:200
254782850,0sleep023252-1kworker/u3:100:34:560
246642850,0sleep024657-1kworker/u3:219:46:190
7450840,0irq/46-4a1000009646-21chrt23:49:300
7450840,0irq/46-4a10000030583-21runrttasks23:14:520
7450840,0irq/46-4a10000020501-21seq21:10:020
7450840,0irq/46-4a10000015303-21chrt00:04:590
7450840,0irq/46-4a10000010159-21fschecks_count23:49:590
7350840,0irq/45-4a1000003444-21sshd20:20:080
7350840,0irq/45-4a10000013340-21grep20:49:440
7450830,0irq/46-4a1000007685-1kworker/u3:221:08:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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