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2026-04-21 - 12:28
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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 Apr 21, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502110,0irq/45-4a10000028620-21kworker/0:219:05:170
7450970,0irq/46-4a10000017031-21mailstats23:01:130
7450970,0irq/46-4a10000012650-21munin-run22:50:180
118192960,0sleep011667-1kworker/u3:121:11:100
7450950,0irq/46-4a1000007046-1kworker/u3:219:26:120
7450950,0irq/46-4a1000003346-21zcat23:56:090
7450950,0irq/46-4a10000026897-21fw_conntrack21:55:470
7450950,0irq/46-4a10000026288-21cron23:30:170
7450950,0irq/46-4a10000022033-21/usr/sbin/munin23:16:080
7450950,0irq/46-4a10000015202-21open_files00:31:100
7450940,0irq/46-4a1000009832-21idleruntime22:40:490
7450940,0irq/46-4a1000009073-1kworker/u3:021:06:360
7450940,0irq/46-4a1000005066-21cat22:26:120
7450940,0irq/46-4a10000031663-1kworker/u3:122:10:540
7450940,0irq/46-4a10000028459-21seq22:00:390
7450940,0irq/46-4a1000002598-21runrttasks22:20:310
7450940,0irq/46-4a10000018023-21/usr/sbin/munin19:55:310
7450940,0irq/46-4a10000012990-21df_abs22:50:370
7450930,0irq/46-4a1000009412-21aten_r4power_en00:15:290
7450930,0irq/46-4a1000006400-21fw_forwarded_lo22:30:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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