From: Ken Brown <kbrown@cornell.edu>
To: Eli Zaretskii <eliz@gnu.org>, Dani Moncayo <dmoncayo@gmail.com>
Cc: 18752@debbugs.gnu.org, fni-news@pirilampo.org
Subject: bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?
Date: Sat, 18 Oct 2014 13:35:48 -0400 [thread overview]
Message-ID: <5442A4F4.1000201@cornell.edu> (raw)
In-Reply-To: <838ukde4ik.fsf@gnu.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?
Ken
next prev parent reply other threads:[~2014-10-18 17:35 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-17 15:04 bug#18752: 24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs? Fabrice Niessen
2014-10-17 15:41 ` Eli Zaretskii
[not found] ` <86h9z2rb42.fsf-hcDgGtZH8xNBDgjK7y7TUQ@public.gmane.org>
2014-10-17 21:08 ` Fabrice Niessen
2014-10-17 22:12 ` Ken Brown
2014-10-18 5:42 ` Eli Zaretskii
[not found] ` <83wq7ydjc7.fsf@gnu.org>
[not found] ` <83wq7ydjc7.fsf-mXXj517/zsQ@public.gmane.org>
2014-10-18 6:51 ` Fabrice Niessen
[not found] ` <86zjctlvkv.fsf@example.com>
2014-10-18 7:19 ` Eli Zaretskii
2014-10-18 16:11 ` Dani Moncayo
2014-10-18 16:17 ` Eli Zaretskii
2014-10-18 16:25 ` Dani Moncayo
2014-10-18 17:35 ` Ken Brown [this message]
2014-10-18 17:46 ` Eli Zaretskii
2014-10-18 19:25 ` Stefan Monnier
2014-10-18 19:34 ` Eli Zaretskii
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