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bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?
From: |
Eli Zaretskii |
Subject: |
bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs? |
Date: |
Sat, 18 Oct 2014 20:46:07 +0300 |
> Date: Sat, 18 Oct 2014 13:35:48 -0400
> From: Ken Brown <kbrown@cornell.edu>
> CC: 18752@debbugs.gnu.org, fni-news@pirilampo.org
>
> On 10/18/2014 12:17 PM, Eli Zaretskii wrote:
> > Unoptimized builds make debugging easier, but are about 2 - 2.5 times
> > slower than optimized ones. For that reason, the usual practice is to
> > produce unoptimized builds for snapshots and pretests, but optimized
> > ones for official releases.
> >
> > Latest GCC versions support a -Og optimization switch that gives you
> > the best of both worlds.
>
> Do you happen to know how much of a performance difference there typically is
> between -Og and -O2?
No; measurements welcome.
Personally, I'd be surprised to see more than a few percents of
difference for Emacs.
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?, (continued)
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?, Eli Zaretskii, 2014/10/17
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?, Fabrice Niessen, 2014/10/17
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?, Ken Brown, 2014/10/17
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?, Eli Zaretskii, 2014/10/18
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?, Fabrice Niessen, 2014/10/18
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?, Eli Zaretskii, 2014/10/18
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?, Dani Moncayo, 2014/10/18
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?, Eli Zaretskii, 2014/10/18
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?, Dani Moncayo, 2014/10/18
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?, Ken Brown, 2014/10/18
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?,
Eli Zaretskii <=
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?, Stefan Monnier, 2014/10/18
- bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?, Eli Zaretskii, 2014/10/18