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2026-08-29 - 23:39
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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 Sat Aug 29, 2026 12:44:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502630,0irq/45-4a100000116442sleep007:08:080
7350920,0irq/45-4a10000030077-21fw_forwarded_lo07:59:550
11813999260,0cyclictest0-21swapper09:35:060
108802920,0sleep010564-1kworker/u3:008:39:240
275402910,0sleep021375-1kworker/u3:211:03:070
11813999158,0cyclictest0-21swapper07:25:150
7350900,0irq/45-4a10000013521-1kworker/u3:207:14:150
7350890,0irq/45-4a100000360-21sendmail-msp11:19:330
7350890,0irq/45-4a1000002869-21ntp_kernel_pll_11:25:020
11813998956,0cyclictest0-21swapper10:25:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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