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2026-07-04 - 04:10
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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 Jul 04, 2026 00:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502200,0irq/45-4a1000007816-21kworker/0:319:04:590
7450910,0irq/46-4a10000017755-21sendmail-msp21:05:410
12085998557,0cyclictest0-21swapper22:57:010
12085998457,0cyclictest0-21swapper23:01:260
7450830,0irq/46-4a10000022966-21runrttasks22:49:350
12085998356,0cyclictest0-21swapper19:32:010
31152828,0sleep03116-21meminfo20:15:080
12085998258,0cyclictest0-21swapper00:00:280
7450810,0irq/46-4a10000030322-21fw_forwarded_lo19:59:590
7450810,0irq/46-4a1000001516-21ntpq20:10:170
7350810,0irq/45-4a10000031913-21grep20:04:500
7450800,0irq/46-4a10000031368-21sendmail-msp21:42:140
7450800,0irq/46-4a100000310-21cron20:37:170
7350800,0irq/45-4a100000267292chrt19:49:400
62542808,0sleep06255-21memory23:35:180
12085998054,0cyclictest0-21swapper20:32:480
12085998051,0cyclictest0-21swapper21:31:220
7450790,0irq/46-4a10000020829-1kworker/u3:000:27:530
7450790,0irq/46-4a10000016000-21cron20:54:190
7350790,0irq/45-4a1000000-21swapper21:45:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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