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Subject: Re: ot. is the gcc 3.3 compiler just as fast as microsoft's now?? nt.

Author: Robert Hyatt

Date: 18:10:04 08/06/03

Go up one level in this thread


On August 06, 2003 at 12:09:03, Vincent Diepeveen wrote:

>On August 06, 2003 at 03:13:34, martin fierz wrote:
>
>Did you use PGO (profile guided optimizations) with gcc 3.2 ?
>
>If not, redo the test. it is here where GCC wins for me from all
>other compilers at x86 hardware.

It is _also_ there that GCC often crashes when trying to compile
crafty.

It is _not_ bug-free.  (it = gcc)


>
>P3, K7 and p4.
>
>>On August 05, 2003 at 13:02:50, Albert Silver wrote:
>>
>>>On August 05, 2003 at 11:15:41, Robert Hyatt wrote:
>>>
>>>>On August 05, 2003 at 10:45:41, Ricardo Gibert wrote:
>>>>
>>>>>On August 05, 2003 at 09:53:26, Robert Hyatt wrote:
>>>>>
>>>>>>On August 05, 2003 at 09:24:07, ERIQ wrote:
>>>>>>
>>>>>>>.
>>>>>>
>>>>>>
>>>>>>No.
>>>>>
>>>>>I have to disagree. I have performed a number of experiments and found msvc
>>>>>faster some of the time and gcc faster some of the time. It all depends on a
>>>>>number of factors that are not completely predictable.
>>>>>
>>>>>The experiments consisted of simulataneously dropping CD copies of each compiler
>>>>>from the roof of my home and observing which CD impacted the ground first. They
>>>>>never seemed to impact the ground at exactly the same time, but there was no
>>>>>clear favorite either.
>>>>
>>>>
>>>>:)
>>>
>>>Joking aside, how much slower on average is gcc compared to msvc, and more
>>>importantly what are the final results like between the two?
>>>
>>>                                       Albert
>>
>>i once compiled my checkers program with both GCC 3.2 and MSVC7. the MSVC7 .exe
>>was around 10% faster.
>>
>>cheers
>>  martin



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