From bbf84ca1a4f617140b07ef85560e59bb05d97510 Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Tue, 13 Jun 2006 01:20:39 +0000 Subject: oprofile reference for Linux/PPC Originally committed as revision 5470 to svn://svn.ffmpeg.org/ffmpeg/trunk --- doc/ffmpeg_powerpc_performance_evaluation_howto.txt | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/doc/ffmpeg_powerpc_performance_evaluation_howto.txt b/doc/ffmpeg_powerpc_performance_evaluation_howto.txt index ebcfe4a7d0..bab41f20ea 100644 --- a/doc/ffmpeg_powerpc_performance_evaluation_howto.txt +++ b/doc/ffmpeg_powerpc_performance_evaluation_howto.txt @@ -156,8 +156,13 @@ documented by Apple, it's not my subject. V) Enabling the PMC on Linux -I don't know how to do it, sorry :-) Any idea very much welcome. +On linux you may use oprofile from http://oprofile.sf.net, depending on the +version and the cpu you may need to apply a patch[1] to access a set of the +possibile counters from the userspace application. You can always define them +using the kernel interface /dev/oprofile/* . + +[1] http://dev.gentoo.org/~lu_zero/development/oprofile-g4-20060423.patch -- -Romain Dolbeau - +Romain Dolbeau +Luca Barbato -- cgit v1.2.3