From: Geert Bosch <geert@gonzo.sun3.iaf.nl>
Subject: Re: Ada for OS/2 (was Re: Linux faster than OS/2...)
Date: 1997/07/03
Date: 1997-07-03T00:00:00+00:00 [thread overview]
Message-ID: <5peljs$i2p$1@gonzo.sun3.iaf.nl> (raw)
In-Reply-To: 5pbea3$a0v@corn.cso.niu.edu
In comp.lang.ada system@niuhep.physics.niu.edu wrote:
``I would not necessily expect OS/2's compiler to have the same effeciency
as Linux's. Assuming the hardware is identical the other question I have
(not having read the original post) is whether you were running a GUI on
Linux?''
Please use emxload -e -gnat before doing any performance tests. This
keeps the GNAT binaries in VM (real memory or swap space) instead
of reloading and relocating them every time they are needed. This
makes a huge difference in speed, esp. with small files.
Because filesystem caching in Linux is better, this is less of an issue
with Linux.
Also keep in mind that you are mostly testing operating systems and I/O
speed. The actual code that will be executed is almost the same, so given
enough memory and fast enough I/O the performance will be not much
different on Linux as on OS/2.
Regards,
Geert
next prev parent reply other threads:[~1997-07-03 0:00 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5ovqj1$4ul$1@unlisys.unlisys.net>
[not found] ` <5p06jo$c1r$2@elektron.et.tudelft.nl>
[not found] ` <5p38a7$2df$2@unlisys.unlisys.net>
[not found] ` <5p93ov$9ro@news.mr.net>
[not found] ` <5p9tpm$e90$1@unlisys.unlisys.net>
1997-07-01 0:00 ` Ada for OS/2 (was Re: Linux faster than OS/2...) system
1997-07-02 0:00 ` Robert Dewar
1997-07-02 0:00 ` system
1997-07-02 0:00 ` Robert Dewar
1997-07-02 0:00 ` Ralph Paul
1997-07-02 0:00 ` Robert Dewar
1997-07-03 0:00 ` Matthieu Willm
1997-07-02 0:00 ` Jerry van Dijk
1997-07-05 0:00 ` Michael Erdmann
1997-07-03 0:00 ` Geert Bosch [this message]
1997-07-04 0:00 ` erdmann
1997-07-04 0:00 ` Geert Bosch
1997-07-07 0:00 ` Michael Erdmann
1997-07-04 0:00 ` Haug Buerger
1997-07-04 0:00 ` Robert Dewar
1997-08-18 0:00 ` Ada for OS/2 Geert Bosch
1997-08-19 0:00 ` Tarjei T. Jensen
1997-08-19 0:00 ` Robert Dewar
[not found] ` <33BEBF5C.367F@berlin.snafu.de>
1997-07-05 0:00 ` Ada for OS/2 (was Re: Linux faster than OS/2...) Robert Dewar
1997-07-06 0:00 ` Michael Erdmann
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