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2026-08-27 - 20:39
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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 10 highest latencies:
System rack4slot2.osadl.org (updated Thu Aug 27, 2026 12:44:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502660,0irq/45-4a10000030540-21kworker/0:107:06:100
7450960,0irq/46-4a1000006395-21sendmail-msp10:44:400
7450960,0irq/46-4a1000003054-21sendmail-msp07:19:220
7450960,0irq/46-4a10000014052-21ntp_kernel_pll_09:25:090
7450940,0irq/46-4a10000023860-21df_inode11:29:330
7450940,0irq/46-4a10000018384-21sendmail-msp09:39:140
7450940,0irq/46-4a10000014150-21ps07:50:040
7350940,0irq/45-4a10000010644-21ntp_states09:15:010
7450930,0irq/46-4a1000008064-21sendmail-msp12:19:330
7450930,0irq/46-4a1000005607-21grep10:35:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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