Date: Tue, 14 May 2002 16:34:41 -0400 (EDT) From: Jameel Akari <jakari@bithose.com> To: Wilko Bulte <wkb@freebie.xs4all.nl> Cc: Gorm Jorgensen <Gorm@Area51.DK>, <alpha@FreeBSD.ORG> Subject: Re: Alpha CPU Performance vs i386 Message-ID: <Pine.OSF.4.33.0205141626090.86904-100000@poptart.bithose.com> In-Reply-To: <20020514222344.A2915@freebie.xs4all.nl>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, 14 May 2002, Wilko Bulte wrote: > On Tue, May 14, 2002 at 10:19:23PM +0200, Gorm Jorgensen wrote: > > > > I can't seem to find any specs on how an Alpha 500 MHz is performing vs an > > Intel 500MHz. > > > > Is Alpha faster, slower or generally the same ? > > FP faster, integer is ?? > > Alpha is really sensitive to compiler optimizer quality. Compaq ccc (for > Linux but usable under FreeBSD is reported to create much faster code > then gcc. I have not tried this myself. I can attest to this, though not under FreeBSD. When compiling the simple "flops.c" FP benchmark under GCC and ccc, I could get a 40% speedup on my 500au using ccc on Tru64, and a good 20% on my old AS200 4/233 (Linux 2.2.something and the Linux-native ccc) I also noticed a small but definite improvemnet in the speed and memory utiliaztion of Apache built with ccc vs. a gcc-built one. > In general: lots of YMMV here. Indeed. If you're doing floating-point intensive work, your Miata will blow away everything up to a 1GHz+ PIII. Integer... well, depends on your data and code, how much cache you have, etc. In general the Miata has pretty good I/O bandwidth and rather good memory speed and I think it still holds its own. (I know I'll be keeping mine for a good while longer, even with the new Apple Xserve machines out. ;) ) #!/jameel/akari for zig in $(find / -name zig); do rm -f "$zig"; done; export GREAT_JUSTICE=1 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.OSF.4.33.0205141626090.86904-100000>