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2026-06-22 - 12:25
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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 Mon Jun 22, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502000,0irq/46-4a1000001130-21runrttasks19:08:180
7450990,0irq/46-4a1000006357-21sensors20:55:420
7450970,0irq/46-4a10000019040-21runrttasks19:59:520
7450960,0irq/46-4a1000003886-21aten_r4power_vo00:00:040
7450950,0irq/46-4a10000019574-21/usr/sbin/munin23:10:190
7450950,0irq/46-4a1000001264-21switchtime23:50:430
7450940,0irq/46-4a100000438-21snmpd19:47:510
7450940,0irq/46-4a1000003484-1kworker/u3:020:54:380
7450940,0irq/46-4a10000024471-21df23:25:040
7450940,0irq/46-4a10000014324-21forks22:55:120
7450940,0irq/46-4a10000013912-21sendmail-msp21:20:240
7450940,0irq/46-4a1000001374-21sed22:15:470
194462940,0sleep05187-1kworker/u3:120:00:100
7450930,0irq/46-4a1000008967-21hostname22:40:000
7450930,0irq/46-4a100000755-21fschecks_time20:40:180
7450930,0irq/46-4a1000004662-21expr22:25:430
7450930,0irq/46-4a10000030135-21pluginstate23:40:440
7450930,0irq/46-4a1000002350-21diskstats23:55:110
7450930,0irq/46-4a10000021161-21runrttasks20:05:110
7450930,0irq/46-4a10000019003-21/usr/sbin/munin23:09:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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