[Slackbuilds-users] Desmume on 64-bit - optimization flag
Luis Henrique Mello
lmello.009 at gmail.com
Wed Jan 23 02:37:22 UTC 2013
It indeed works, just tested it.
This could be useful not only for Desmume, but all 'heavyweight'
computing applications such as Octave.
What do you guys think?
On 01/23/2013 12:33 AM, Larry Hajali wrote:
> Yes, that probably is correct. But there wasn't good information on
> sse3 vs. ssse3 when I did a google search.
>
> On Tue, Jan 22, 2013 at 5:29 PM, Luis Henrique Mello
> <lmello.009 at gmail.com <mailto:lmello.009 at gmail.com>> wrote:
>
> The correct 'if' statement would be:
>
> if grep ssse3 /proc/cpuinfo 1> /dev/null; then
> SLKCFLAGS="$SLKCFLAGS -msse3"
> fi
>
>
> On 01/22/2013 02:23 PM, Larry Hajali wrote:
>
> Could just add an if statement that will add it to the SLKCFLAGS
> if it
> is detected on the computer.
>
> if grep [^s]sse3 /proc/cpuinfo 2>/dev/null; then
> SLKCFLAGS="$SLKCFLAGS -msse3"
> fi
>
> Not sure if this leads to undesirable results. I don't have an sse3
> capable processor, so I can't test.
>
> --Larry
>
> On Tue, Jan 22, 2013 at 7:42 AM, King Beowulf
> <kingbeowulf at gmail.com <mailto:kingbeowulf at gmail.com>
> <mailto:kingbeowulf at gmail.com <mailto:kingbeowulf at gmail.com>>__>
> wrote:
>
> Add it as a switch option? That way there is a reminder for
> those
> users who can benefit from ss3 as they might not think of it or
> release otherwise.
>
>
> On 1/22/13, Tobias Eichmann <slackeee at gmail.com
> <mailto:slackeee at gmail.com>
> <mailto:slackeee at gmail.com <mailto:slackeee at gmail.com>>> wrote:
> > On Tue, Jan 22, 2013 at 01:45:54AM -0200, Luis Henrique
> Mello wrote:
> >> Hi,
> >>
> >> I've noticed that adding '-msse3' to the $SLKCFLAGS on
> a x86_64 bit
> >> build improves performance.
> >>
> >> - Luis
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> >
> > Not all x86_64 CPUs support SSE3 (the lowest common
> denominator
> is SSE2),
> > so
> > adding this option by default will render the script
> unusable for
> owners of
> > such CPUs.
> >
> > - Tobi
> >
> > --
> > Tobias Eichmann, slackeee at gmail.com
> <mailto:slackeee at gmail.com> <mailto:slackeee at gmail.com
> <mailto:slackeee at gmail.com>>
>
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> >
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