Reminder: ELISA March Seminar - rtla: Real-time Linux Analysis toolset by Daniel Bristot de Oliveira
5:00pm to 6:00pm
Title: rtla: Real-time Linux Analysis toolset
Speaker: Daniel Bristot de Oliveira, Ph.D.
From 5.17, Linux includes a new tool named rtla, which stands for Real-time
Linux Analysis. The rtla is a meta-tool that consists of a set of commands that
aims to analyze the real-time properties of Linux. But instead of testing Linux
as a black box, rtla leverages kernel tracing capabilities to provide precise
information about the properties and root causes of unexpected results.
In this talk, Daniel will present two tools provided by rtla. The timerlat tool
used to measure IRQ and thread latency for interrupt-driven applications
(important for the PREEMPT_RT kernel), and the osnoise tool used to evaluate the
ability of Linux to isolate, from the scheduling perspective, a workload from
the interferences from the rest of the system. The presentation also includes
examples of using the tool to find the root cause of unexpected latencies and
how to collect extra tracing information directly from the tool.
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