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List:       kde-core-devel
Subject:    Re: Performance
From:       Uwe Thiem <uwe () uwix ! alt ! na>
Date:       2000-08-06 14:27:50
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On Sat, 5 Aug 2000, Stephan Kulow wrote:

> Uwe Thiem wrote:
> > 
> > After all the fuzz about speed and performance of KDE in general and
> > Konqueror in particular I conducted a couple of tests today. Fresh
> > update from this morning.
> > 
> > I compiles the packages up to kdebase on three machines:
> > 
> > (A)
> > Pentium II 400  256 MB ram
> > --enable-debug for everything (Qt to kdebase)
> > 
> > (B)
> > Celeron 400  192 MB ram
> > no debug but no fancy optimisation settings either, just what you
> > get if you don't specify --enable-debug
> > 
> > (C)
> > DEC Alpha 500  256 MB ram
> > --enable-debug
> > 
> > Usually (A) and (B) are equally fast, (A) just a wee bit faster.
> > 
> > I was rather surprised that (A) and (B) were almost equally fast in
> > this case. Startup of applications were somewhat slower on (A) which
> > is due to the much bigger sizes of executables and libraries with debug.
> > Konqueror, on the other hand, rendered pages sometimes a bit faster
> > on (A), sometimes on (B). The difference was not significant.
> > 
> > After this result, I find the hunt for the "right" optimisation
> > settings superfluous.
> > 
> We talk about --disable-debug - which adds a lot more. For example it
> turns off debug output and the code used for it

Well, I recompiled (B) with --disable-debug and still can't see much
of a difference. Sometimes (A) is faster sometimes (B).

Uwe

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Uwe Thiem                                        Tel:  +264 - 61 - 249249
P.O.Box 30955                                    Email:   uwe@uwix.alt.na
Windhoek                                                      uwe@kde.org
Republic of Namibia                                    http://www.kde.org
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