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2026-06-27 - 06:54
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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 Sat Jun 27, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1025429960,0sleep09091-1kworker/u3:019:05:230
7450960,0irq/46-4a10000022197-21entropy22:50:000
7450960,0irq/46-4a10000021565-1kworker/u3:219:46:140
7450960,0irq/46-4a10000016667-1kworker/u3:221:03:540
7450950,0irq/46-4a10000026870-21cron19:54:350
7450950,0irq/46-4a10000022411-21irqstats21:15:130
7350950,0irq/45-4a1000003778-21ntp_kernel_err20:20:280
7450940,0irq/46-4a10000011511-21munin-run22:19:370
7450930,0irq/46-4a1000007984-1kworker/u3:220:52:520
7450930,0irq/46-4a10000032733-21latency23:20:320
7450930,0irq/46-4a10000030969-21runrttasks23:15:130
7450930,0irq/46-4a10000030392-21latency_hist20:04:390
7450930,0irq/46-4a10000029185-21chrt20:00:070
7450930,0irq/46-4a10000026758-1kworker/u3:223:06:530
7450930,0irq/46-4a10000017341-21meminfo00:10:150
7450930,0irq/46-4a10000014191-21sendmail_mailst00:00:370
7450920,0irq/46-4a1000007464-21threads20:30:350
7450920,0irq/46-4a1000006135-21runrttasks22:02:390
7450920,0irq/46-4a1000006066-1kworker/u3:123:38:250
7450920,0irq/46-4a1000004236-21chrt21:56:080
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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