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2025-11-25 - 20:48
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 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 rack9slot4.osadl.org (updated Tue Nov 25, 2025 12:43:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
31678113771sleep0-21swapper/000:29:150
70501330irq/18-mmc13181199cyclictest03:59:581
317989912444cyclictest12900-21/usr/sbin/munin05:30:070
31473112375sleep0-21swapper/100:29:001
317989911935cyclictest9980-21tail05:24:370
317989911238cyclictest28923-21latency_hist02:04:210
317989911233cyclictest7708-21ssh02:34:410
317989911134cyclictest22655-21runrttasks01:43:540
317989910836cyclictest26757-21ntp_kernel_err01:54:520
317989910832cyclictest27427-21latency_hist05:54:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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