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| -rw-r--r-- | doc/ffmpeg_powerpc_performance_evaluation_howto.txt | 11 |
1 files 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.org> +Romain Dolbeau <romain@dolbeau.org> +Luca Barbato <lu_zero@gentoo.org> |