Annotated edit history of
OProfile version 3, including all changes.
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IanMcDonald |
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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. |
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The home page for this project is at http://oprofile.sourceforge.net/ |
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IanMcDonald |
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Steps to use [OProfile]: (To be completed as IanMcDonald documents and gets it working) |
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* Install [OProfile] |
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* Build LinuxKernel with profiling support (Under Instrumentation Support for kernel when building) |
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* Install kernel including vmlinux (not just vmlinuz). See script on KernelDevelopment |
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* Reset stats if needed with <tt>sudo opcontrol --reset</tt> (Stats get carried over after reboots) |
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* Start with <tt>sudo opcontrol --start --vmlinux=/boot/vmlinux-myname</tt> (where myname is whatever you've called vmlinux) |
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* Run your task |
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* Stop with <tt>sudo opcontrol --stop</tt> |
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IanMcDonald |
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* Use <tt>opreport</tt> command to run reports (see man page for details) |
