GNU bug report logs - #18752
24.3.94; Why is Cygwin Emacs 2x quicker than Windows Emacs?

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Package: emacs;

Reported by: Fabrice Niessen <fni-news <at> pirilampo.org>

Date: Fri, 17 Oct 2014 15:07:02 UTC

Severity: wishlist

Tags: notabug

Found in version 24.3.94

Done: Noam Postavsky <npostavs <at> users.sourceforge.net>

Bug is archived. No further changes may be made.

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Message #44 received at 18752 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 18752 <at> debbugs.gnu.org, fni-news <at> pirilampo.org, dmoncayo <at> gmail.com
Subject: Re: bug#18752: 24.3.94;
 Why is Cygwin Emacs 2x quicker than Windows Emacs?
Date: Sat, 18 Oct 2014 22:34:15 +0300

> From: Stefan Monnier <monnier <at> iro.umontreal.ca>
> Cc: Dani Moncayo <dmoncayo <at> gmail.com>,  18752 <at> debbugs.gnu.org,  fni-news <at> pirilampo.org
> Date: Sat, 18 Oct 2014 15:25:15 -0400
> 
> I still constantly get "variable optimized away" messages in GDB.

Nothing can be done about this, given the complexity of DWARF and
compiler/debugger bugs in implementing its dark corners.

The problem with debugging -O2 code is that you cannot trust
backtraces, and cannot set breakpoints and be sure they will break.
This doesn't happen with -Og.
This bug report was last modified 8 years and 344 days ago.

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