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Oracle Linux: How To Profile Linux Kernel for a Specific User Space Program with Ftrace (Doc ID 2789699.1)

Last updated on JULY 14, 2021

Applies to:

Linux OS - Version Oracle Linux 7.6 with Unbreakable Enterprise Kernel [4.14.35] and later


Sometimes it is needed to profile Linux Kernel to see why a very simple command like "cat /sys/<some file>" is very slow.

This note illustrates how to get this done with ftrace.


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