> Profile-guided optimization did not help much, as might be expected, it
> pushed about the same kind of optimization as the mtune/march combination.
> With gcc 4.1.3 i'm finding that profile guided optimization when trained
> on pybench or regrtest does make a measurable difference (2-5% overal
-On [20080413 00:47], Gregory P. Smith ([EMAIL PROTECTED]) wrote:
>With gcc 4.1.3 i'm finding that profile guided optimization when trained on
>pybench or regrtest does make a measurable difference (2-5% overall time with
>10-20% on some pybench tests). I haven't run benchmarks enough times to be
On Sat, Apr 12, 2008 at 11:09 AM, Jeroen Ruigrok van der Werven <
[EMAIL PROTECTED]> wrote:
> I did some more tests concentrating on GCC, partly based on the feedback I
> got, results at
> http://www.in-nomine.org/2008/04/12/python-26-compiler-options-results/
>
> Executive summary: Python needs t
I did some more tests concentrating on GCC, partly based on the feedback I
got, results at
http://www.in-nomine.org/2008/04/12/python-26-compiler-options-results/
Executive summary: Python needs to be compiled with -O2 or -O3. Not doing
so, no optimization level, results with GCC 4.2.1 in a doubli
