Date: Wed, 21 Mar 2001 01:46:41 +0300 (IDT) From: Roman Shterenzon <roman@harmonic.co.il> To: Kris Kennaway <kris@obsecurity.org> Cc: Roman Shterenzon <roman@xpert.com>, freebsd-stable@FreeBSD.ORG Subject: Re: ARCH in /etc/make.conf Message-ID: <985128401.3ab7ddd1dff3c@webmail.harmonic.co.il> In-Reply-To: <20010319020716.B4427@xor.obsecurity.org> References: <Pine.LNX.4.10.10103181240500.20824-100000@shark.harmonic.co.il> <20010319020716.B4427@xor.obsecurity.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Quoting Kris Kennaway <kris@obsecurity.org>: > On Sun, Mar 18, 2001 at 12:44:38PM +0200, Roman Shterenzon wrote: > > Hi, > > I've noticed that for K6-2 -march=k6 is implied. > > Browsing through gcc code teaches me that ``k6 - doesn't have > pipelines'' > > which is wrong for sure for K6-2. That may explain why -march=pentium > > binaries (played with graphics/xine port) run faster than -march=k6. > > Perhaps it's wiser to set -march=pentium for K6-2 (of course, with > 3DNOW - > > I haven't seen yet what variables are set for benefit of ports like > mpg123) > > Can you produce benchmarks showing that this is the right thing to do? > > Kris > If you tell me how, I'd be glad to help. I played with xine - ran each one many times (in order to eliminate as much as possible the cache, tlb and os cache effects) and watched the dropped frames and other information. This is far from being "good benchmark". Is there're anything related in ports/benchmarks, some new incarnation of wetstone/dhrystone or something? --Roman Shterenzon, UNIX System Administrator and Consultant [ Xpert UNIX Systems Ltd., Herzlia, Israel. Tel: +972-9-9522361 ] To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?985128401.3ab7ddd1dff3c>