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c++.announce - DMC++ 8.38 performance

reply "Walter" <walter digitalmars.com> writes:
Matthew Wilson has written an article for CUJ which does some performance
comparisons for various C++ compilers at
http://www.cuj.com/documents/s=8943/cujexp0312wilson/. Of special interest
is this chart
http://www.cuj.com/documents/s=8943/cujexp0312wilson/wilson_f2.htm.
Dec 11 2003
next sibling parent "Phill" <phill pacific.net.au> writes:
Congratulations Walter!

Phill.


"Walter" <walter digitalmars.com> wrote in message
news:braq3g$2vtn$1 digitaldaemon.com...
 Matthew Wilson has written an article for CUJ which does some performance
 comparisons for various C++ compilers at
 http://www.cuj.com/documents/s=8943/cujexp0312wilson/. Of special interest
 is this chart
 http://www.cuj.com/documents/s=8943/cujexp0312wilson/wilson_f2.htm.

Dec 11 2003
prev sibling parent reply Riccardo Cohen <rcohen articque.com> writes:
I've already seen another comparison table about performance (on dm site I
think). But I found that 
with the METAKIT library, digitalmars executable is 3 times slower than VC5 !!

search in 50000 records database with vc5 : 24.931111 ms/search
search in 50000 records database with dm8.38: 65.156000 ms/search

and this is a problem particularly because I use the metakit library for quick
searches...

Walter wrote:

 Matthew Wilson has written an article for CUJ which does some performance
 comparisons for various C++ compilers at
 http://www.cuj.com/documents/s=8943/cujexp0312wilson/. Of special interest
 is this chart
 http://www.cuj.com/documents/s=8943/cujexp0312wilson/wilson_f2.htm.
 
 

-- Riccardo Cohen Articque Les Roches 37230 Fondettes France web = http://www.articque.com tel: +33 02 47 49 90 49 fax: +33 02 47 49 91 49
Dec 12 2003
parent reply "Matthew Wilson" <matthew.hat stlsoft.dot.org> writes:
Which version of the compiler was it? 8.38 brought in some significant
improvements in the template optimisation

"Riccardo Cohen" <rcohen articque.com> wrote in message
news:3FD9963F.60008 articque.com...
 I've already seen another comparison table about performance (on dm site I

 with the METAKIT library, digitalmars executable is 3 times slower than

 search in 50000 records database with vc5 : 24.931111 ms/search
 search in 50000 records database with dm8.38: 65.156000 ms/search

 and this is a problem particularly because I use the metakit library for

 Walter wrote:

 Matthew Wilson has written an article for CUJ which does some


 comparisons for various C++ compilers at
 http://www.cuj.com/documents/s=8943/cujexp0312wilson/. Of special


 is this chart
 http://www.cuj.com/documents/s=8943/cujexp0312wilson/wilson_f2.htm.

-- Riccardo Cohen Articque Les Roches 37230 Fondettes France web = http://www.articque.com tel: +33 02 47 49 90 49 fax: +33 02 47 49 91 49

Dec 12 2003
next sibling parent Riccardo Cohen <rcohen articque.com> writes:
I used 8.38. I checked by typing ...dm\bin\dmc.exe :

Digital Mars Compiler Version 8.38n
Copyright (C) Digital Mars 2000-2003.  All Rights Reserved.

Matthew Wilson wrote:
 Which version of the compiler was it? 8.38 brought in some significant
 improvements in the template optimisation
 
 "Riccardo Cohen" <rcohen articque.com> wrote in message
 news:3FD9963F.60008 articque.com...
 
I've already seen another comparison table about performance (on dm site I

think). But I found that
with the METAKIT library, digitalmars executable is 3 times slower than

VC5 !!
search in 50000 records database with vc5 : 24.931111 ms/search
search in 50000 records database with dm8.38: 65.156000 ms/search

and this is a problem particularly because I use the metakit library for

quick searches...
Walter wrote:


Matthew Wilson has written an article for CUJ which does some


performance
comparisons for various C++ compilers at
http://www.cuj.com/documents/s=8943/cujexp0312wilson/. Of special


interest
is this chart
http://www.cuj.com/documents/s=8943/cujexp0312wilson/wilson_f2.htm.

-- Riccardo Cohen Articque Les Roches 37230 Fondettes France web = http://www.articque.com tel: +33 02 47 49 90 49 fax: +33 02 47 49 91 49


-- Riccardo Cohen Articque Les Roches 37230 Fondettes France web = http://www.articque.com tel: +33 02 47 49 90 49 fax: +33 02 47 49 91 49
Dec 12 2003
prev sibling parent reply "Włodzimierz Skiba" <abx abx.art.pl> writes:
"Matthew Wilson" <matthew.hat stlsoft.dot.org> wrote in 
news:brc5j6$1ta8$1 digitaldaemon.com:

 Which version of the compiler was it?

BTW, Matthew, afaik there is nothing like Watcom 12.0 listed in your article. There is Open Watcom 1.0 and 1.1 (1.2 RC for braves). They internally have __WATCOMC__ predefined with value adjusted to mark continuation of development but using it for naming whole product is like calling DMC Symantec C++ just because it has __SC__ predefined. Any chance for such interesting article about strong FPU/double operations? ABX
Dec 12 2003
parent "Matthew Wilson" <matthew.hat stlsoft.dot.org> writes:
 Which version of the compiler was it?

BTW, Matthew, afaik there is nothing like Watcom 12.0 listed in your article. There is Open Watcom 1.0 and 1.1 (1.2 RC for braves). They internally have __WATCOMC__ predefined with value adjusted to mark continuation of development but using it for naming whole product is like calling DMC Symantec C++ just because it has __SC__ predefined.

I'm still stuck in the old Watcom mode. I should start talking about OW 1.0 etc. Please feel free to point it out if I do it again. :)
 Any chance for such interesting article about strong FPU/double

There is a strong chance, once I'm past the book deadline (2nd Feb). By all means write to me again after that time and remind me Cheers Matthew
Dec 15 2003