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2026-04-11 - 18:12
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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 Apr 11, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502670,0irq/46-4a10000019047-1kworker/u3:007:03:490
7350920,0irq/45-4a1000002425-21diskstats07:46:040
20210999259,0cyclictest0-21swapper12:01:300
20210999259,0cyclictest0-21swapper07:56:160
20210999258,0cyclictest0-21swapper10:06:350
20210999257,0cyclictest0-21swapper11:31:210
7450900,0irq/46-4a10000031897-21ntpq07:36:320
7450900,0irq/46-4a1000002784-21/usr/sbin/munin10:56:280
20210999057,0cyclictest0-21swapper08:21:340
20210999057,0cyclictest0-21swapper08:06:170
7450890,0irq/46-4a1000008351-1kworker/u3:209:39:210
7450890,0irq/46-4a10000021353-21fschecks_time10:16:080
7450890,0irq/46-4a10000020648-1kworker/u3:108:44:090
236962897,0sleep023697-21users08:46:420
20210998958,0cyclictest0-21swapper12:26:040
20210998958,0cyclictest0-21swapper10:10:580
20210998955,0cyclictest0-21swapper12:21:300
20210998955,0cyclictest0-21swapper10:50:550
8742880,0sleep032332-1kworker/u3:107:41:110
7450880,0irq/46-4a10000021052-21awk07:06:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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