comp.lang.c++

On 2008-02-17 19:48, Jerry Coffin wrote:
> In article <0ab81bd1-1e5a-43eb-8a7f-bfc9d0148d5c@
> 28g2000hsw.googlegroups.com>, szhorvat@gmail.com says...
>
> [ ... ]
>
>> > 1) the newer version of VC++ has reduced I/O speed a lot.
>>
>> I only have VS 2008 Express, so I don't know, but it seems possible.
>
> If you previously said you were using the "Express" edition, I didn't
> catch it.
>
> In any case, that's almost certainly the majority of the explanation
> right there. Much of what they do in the Express edition of the compiler
> is disable nearly _all_ optimization. Since iostreams are templates,
> that means most of the code involved is being compiled with virtually no
> optimization applied.
>
> Fortunately, this is fairly easy to fix: the full version of the
> compiler is included with (among other things) a number of versions of
> the Windows SDK. If you care about performance at all, I'd advise
> downloading and using that (at least for final builds).

I forgot to add, the Windows Platform SDK comes as a part of Visual C++
2008 Express, so downloading it again will buy you nothing.

--
Erik Wikström