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2026-06-09 - 10:36
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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 09, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502040,0irq/45-4a10000016850-21kworker/0:319:05:080
7450800,0irq/46-4a10000026782-1kworker/u3:022:29:450
24160997753,0cyclictest0-21swapper00:25:050
7350760,0irq/45-4a100000210862chrt20:33:120
24160997258,0cyclictest0-21swapper21:42:000
24160997144,0cyclictest1876-21/usr/sbin/munin21:10:530
7450700,0irq/46-4a1000007631-21kworker/u2:021:30:310
7450700,0irq/46-4a10000028683-21fschecks_time22:30:220
24160997055,0cyclictest0-21swapper23:36:540
24160996955,0cyclictest7350irq/45-4a10000019:16:140
24160996954,0cyclictest7350irq/45-4a10000021:45:060
24160996951,0cyclictest5219-21mailstats22:55:480
24160996950,0cyclictest12741-21runrttasks20:09:460
24160996942,0cyclictest0-21swapper20:21:400
24160996936,0cyclictest16419-21cut21:55:070
7350680,0irq/45-4a1000000-21swapper21:00:060
24160996856,0cyclictest7350irq/45-4a10000020:15:350
24160996841,0cyclictest3180-21/usr/sbin/munin21:15:320
7450670,0irq/46-4a100000390-1kworker/u3:022:45:500
7450670,0irq/46-4a10000020064-21diskstats22:05:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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