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2026-08-22 - 05:01
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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 Aug 22, 2026 00:44:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502780,0irq/46-4a10000012-21ksoftirqd/019:07:240
7350940,0irq/45-4a1000009738-21df21:14:420
58092920,0sleep04780-1kworker/u3:221:02:590
7350890,0irq/45-4a1000006052-21/usr/sbin/munin22:39:570
90412880,0sleep07442-1kworker/u3:000:21:540
7350880,0irq/45-4a1000002730-21aten_r4power_en22:29:360
7350880,0irq/45-4a10000026454-21cron22:04:240
7350870,0irq/45-4a10000027306-21ntp_kernel_pll_20:30:120
7350870,0irq/45-4a10000019443-21seq21:42:510
277922870,0chrt17835-1kworker/u3:123:41:320
106272870,0sleep08750-1kworker/u3:022:50:490
7450860,0irq/46-4a100000851-21sendmail-msp23:59:350
7450860,0irq/46-4a1000005232-21cat00:10:240
7450850,0irq/46-4a1000003154-1kworker/u3:120:58:580
320432857,0sleep032075-21sensors_temp19:10:210
313522850,0sleep029953-1kworker/u3:020:42:130
84302840,0chrt7327-1kworker/u3:021:10:080
7450840,0irq/46-4a1000009459-21sendmail-msp19:39:540
7450840,0irq/46-4a1000003370-21meminfo19:20:180
7450840,0irq/46-4a10000032287-21runrttasks20:45:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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