On 6/2/2011 2:01 AM, srepmub wrote:
> hi guys,I don't have experience, but having seen the difference made by
> there are several interesting tools, acovea and milepost gcc (?), that
> so the obvious thought is, wouldn't it be nice if we could combine
> thoughts or experencies, anyone..?
-march=native (when gcc supports it), using one of those tools might be
If they depend on running the output, it'll require more specific
> btw, I was reminded by private mail of the -Ofast option in GCC 4.6.This, along with -march=native, needs a GCC version check. I have three
> apparently it turns on -ffast-math, and possibly some other goodies.
versions of GCC installed from the past few years, and the latest I have
is 4.4.5. Distributions update at different speeds, usually skipping a
version or two of tools, so a quick "gcc --version" parsing would be
version results in (4,4,5) for me
> btw2, I love the idea of -fprofile-generate and -fprofile-use, and
> also get some minor gains from it now and then.
You must Sign in before you can post messages.
To post a message you must first join this group.
Please update your nickname on the subscription settings page before posting.
You do not have the permission required to post.