View Source: OProfile - Waikato Linux Users Group

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[OProfile] is a [Profiling] tool which is particularly useful for looking at all programs on a Linux system including the [LinuxKernel] if you are doing KernelDevelopment.

The home page for this project is at http://oprofile.sourceforge.net/

Steps to use [OProfile]: (To be completed as IanMcDonald documents and gets it working)
* Install [OProfile]
* Build LinuxKernel with profiling support (Under Instrumentation Support for kernel when building)
* Install kernel including vmlinux (not just vmlinuz). See script on KernelDevelopment
* Reset stats if needed with <tt>sudo opcontrol --reset</tt> (Stats get carried over after reboots)
* Start with <tt>sudo opcontrol --start --vmlinux=/boot/vmlinux-myname</tt> (where myname is whatever you've called vmlinux)
* Run your task
* Stop with <tt>sudo opcontrol --stop</tt>
* Use <tt>opreport</tt> command to run reports (see man page for details)

One page links to OProfile:

KernelDevelopment

Last edited on Wednesday, December 6, 2006 9:00:45 pm by IanMcDonald

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