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2026-06-02 - 08:18
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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 Tue Jun 02, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502430,0irq/46-4a10000022922-1kworker/u3:019:01:370
239359913645,0cyclictest2057-21/usr/sbin/munin21:09:210
239359913345,0cyclictest20977-21/usr/sbin/munin22:04:280
239359912742,0cyclictest0-21swapper20:46:140
239359912539,0cyclictest4395-21runrttasks21:15:470
239359912453,0cyclictest0-21swapper20:05:580
239359912448,0cyclictest0-21swapper19:58:500
239359912342,0cyclictest18263-21runrttasks20:22:320
239359912342,0cyclictest0-21swapper21:38:420
239359911837,0cyclictest0-21swapper19:04:330
239359911344,0cyclictest29811-21/usr/sbin/munin00:04:390
23935997855,0cyclictest0-21swapper22:24:040
7450760,0irq/46-4a10000016267-21runrttasks23:25:120
7350760,0irq/45-4a1000004719-21chrt00:28:320
320372760,0sleep031699-1kworker/u3:019:28:300
7450750,0irq/46-4a10000028652-21runrttasks00:03:350
7450750,0irq/46-4a10000024294-1kworker/u3:222:14:290
7450750,0irq/46-4a10000014925-1kworker/u3:023:29:090
7450740,0irq/46-4a1000009202-1kworker/u3:119:08:580
7450740,0irq/46-4a1000008746-1kworker/u3:023:09:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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