From: "Hemmann, Volker Armin" <volker.armin.hemmann@tu-clausthal.de>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Re: Changing CFLAGS
Date: Sat, 28 Apr 2007 16:22:51 +0200 [thread overview]
Message-ID: <200704281622.52048.volker.armin.hemmann@tu-clausthal.de> (raw)
In-Reply-To: <1365335.7VvtqByZ9f@m-id.message-center.info>
On Samstag, 28. April 2007, Alexander Skwar wrote:
> · Hemmann, Volker Armin <volker.armin.hemmann@tu-clausthal.de>:
> > On Samstag, 28. April 2007, Alex Schuster wrote:
> >> BTW: What exactly are the benefits from using march instead of
> >> mcpu? Is there a noticeable difference in speed anyway? With mcpu
>
> [...]
>
> > usually march is faster on the given cpu, mcpu is more compatible.
>
> Is it noticeable, though?
well, march uses things like sse/sse2/sse3 or 3dnow and mcpu does not. So yes,
it is.
You can test it for yourself. Get a 400mhz CPU with 3dnow, like a K6-2 or
K6-3, and compile mplayer or xine-lib with mcpu and with march. With march
you can watch videos. With mcpu you get a fast slideshow.
--
gentoo-user@gentoo.org mailing list
next prev parent reply other threads:[~2007-04-28 14:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-28 1:40 [gentoo-user] Changing CFLAGS Alex Schuster
2007-04-28 5:07 ` Hemmann, Volker Armin
2007-04-28 14:04 ` [gentoo-user] " Alexander Skwar
2007-04-28 14:22 ` Hemmann, Volker Armin [this message]
2007-05-03 20:40 ` [gentoo-user] " Csányi András
2007-05-03 22:19 ` Ryan Sims
2007-05-04 6:11 ` Csányi András
2007-05-04 6:12 ` Csányi András
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