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2026-06-17 - 04:02
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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 Wed Jun 17, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73505110,0irq/45-4a1000003442-21kworker/0:119:07:450
7350920,0irq/45-4a1000006963-21/usr/sbin/munin22:00:530
306442920,0sleep028945-1kworker/u3:023:10:310
9872900,0sleep032474-1kworker/u3:121:44:350
7450900,0irq/46-4a10000019845-21sendmail-msp22:40:240
7450890,0irq/46-4a10000024407-21ls19:41:020
7450890,0irq/46-4a10000022646-21timerwakeupswit22:45:570
7450890,0irq/46-4a10000016456-21sendmail-msp19:20:300
7350890,0irq/45-4a10000027852-21users00:35:580
7350890,0irq/45-4a10000014338-21munin-node21:05:420
7450880,0irq/46-4a1000004637-21wget21:55:110
7450880,0irq/46-4a100000438-21snmpd21:45:480
7450880,0irq/46-4a10000026057-21sort19:45:560
7450880,0irq/46-4a10000024919-21cron22:55:000
7450880,0irq/46-4a10000019145-1kworker/u3:223:00:350
7450880,0irq/46-4a10000019128-21cat21:01:040
7350880,0irq/45-4a10000025435-21seq21:20:320
7350880,0irq/45-4a10000020136-21awk19:30:150
266472880,0sleep019145-1kworker/u3:223:00:000
7450870,0irq/46-4a100000438-21snmpd19:19:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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