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Re: does gcc 4.1 generate "faster" binaries than earlier gcc versions?
- From: René Rebe <rene at exactcode dot de>
- To: gcc at gcc dot gnu dot org
- Cc: Tomasz Chmielewski <mangoo at wpkg dot org>
- Date: Sat, 4 Mar 2006 20:26:58 +0100
- Subject: Re: does gcc 4.1 generate "faster" binaries than earlier gcc versions?
- References: <4409E42D.firstname.lastname@example.org>
of course most development on gcc is applied to make the produced
binary faster. Also most benchmarks focus on the speed of the produced
binaries - you just need to look on the right benchmarks ,-)
Whether the generated binary of gcc in a new major version is faster
depends on your code and optimizations used and I have not tested
For my code new versions of GCC are usually faster, on x86-64
-frename-registers gave some extra bonus on 4.0 IIRC.
On Saturday 04 March 2006 20:02, Tomasz Chmielewski wrote:
> Perhaps the question is a bit silly, but I thought I'd ask it anyway.
> I'm compiling some software for a Linux/uClibc on a mipsel platform.
> Right now I'm using gcc 3.4.4 to do both native and cross-compilation.
> A while ago gcc 4.1 was released, and boasts many optimizations.
> As the mipsel devices I use are rather slow - here comes the point of my
> question: will binaries I compile with gcc 4.1 be faster than these
> compiled with 3.4.4?
> I don't really care about compilation time; I'm only concerned with the
> speed of the binaries made with gcc 3.4.4 and 4.1 (i.e., will gzip
> compiled with gcc 4.1 compress a given file faster than gzip compressed
> with gcc 3.4.4).
> I tried looking for some benchmarks, but they mainly deal with
> compilation time.
René Rebe - Rubensstr. 64 - 12157 Berlin (Europe / Germany)
http://www.exactcode.de | http://www.t2-project.org
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