dev-cpp-users

Re: [Dev-C++] how to improve mingw performance

[Cristian B. <cbu...@to...>]

Hello

The only thing to do is to add more memory
Plain C still takes a reasonable ammount of time to compile with GCC even on a 586/133 w. 16MB RAM. (Win 98). This is the lowest performance computer on which I have installed DEV-C++, yet.   

When it comes to C++... it-s painfully slow. I tried to compile a simple example using wxWindows library... HDD didn't stop working for more than 5 minutes. Seems to me that compiling C++ takes a huge ammount of resources.

Pe data de Fri, 21 Mar 2003 07:07:05 -0800
dev...@li... a scris:

> Date: Fri, 21 Mar 2003 11:31:06 -0300
> From: Alessandro Oliveira <ale...@nu...>
> To: Dev...@li...
> Subject: [Dev-C++] how to improve mingw performance
> 
> Hi,
> 
> I've installed dev-cpp on 30 computers in the University. But when I try 
> to compile a hello world example it takes about 5 minutes.
> 
> The machines are old pentiums 166/32mb of RAM. Is there any chance to 
> improve the performace of mingw ?
> 
> -- 
> Thanks,

RE: [Dev-C++] how to improve mingw performance

[Ioannis V. <iv...@em...>]

> -----Original Message-----
> From: dev...@li...=20
> [mailto:dev...@li...] On Behalf=20
> Of Alessandro Oliveira
> Sent: Friday, March 21, 2003 7:00 PM
> To: Dev...@li...
> Cc: go...@De...
> Subject: Re: [Dev-C++] how to improve mingw performance
>=20
>=20
> Have you ever heard about early pentiums without math processor ?
>=20
> the computer lab guys told me that these compaqs doesn't have a math=20
> processor,
> I don't think this is true, but you know, OEMs do whatever is=20
> necessary=20
> in order to raise their profits.
>=20
> I don't know if this would affect performance anyway.


Only Intel processors up to 386 had not an integrated math unit. I do =
not
recall about other manufacturers of the time like AMD and Cyrix but all
systems with an optional math-coprocessor were of the 386 generation. =
i486
was the first processor with an intergated math-unit. So if you have =
pentium
I can't see how it is possible to not have a math unit. And 5 minutes =
sounds
strangely too much (unless it was an expression of exageration like the
expression "it takes 10 hours to compile").



Ioannis Vranos
=20
* Programming pages: http://www.noicys.freeurl.com
* Alternative URL: http://run.to/noicys

Re: [Dev-C++] how to improve mingw performance

[Shreeharsh S. A. <s_...@ya...>]

Hi folks!

one way to improve MinGW's performance w.r.t. the compile times would definately be as follows...

"to avoid re-compilation of headers!!!"

to do so u can include the following statement at the beginning of all ur header files...

#define _HeaderName_H_

by this method when the compiler first compiles, it defines all those statements in all the headers present in ur current project. thus the first compilation would always take a lot of time. but re-compilations would be much more faster since it wouldnt re-compile all ur headers.

i hope my solution hlps u! and that u hv understood it!!!

- Shreeharsh S. Ambli.

PS: could anyone plz tell me all those short forms that u guys use in mails. usually they are in all caps!! but i am un-familiar with them. plz hlp me!!



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