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From: Mike Mattie <codermattie@gmail.com>
To: emacs developers <emacs-devel@gnu.org>
Subject: -fomit-frame-pointer lossage FYI
Date: Sun, 16 Dec 2007 03:38:34 -0800	[thread overview]
Message-ID: <20071216033834.117e8649@reforged> (raw)


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Hello,

I was going to report a problem with laggy scrolling in emacs through the usual channels. While rebuilding
emacs to narrow down the problem I discovered that my package manager was building with -fomit-frame-pointer.
I like debugging so I killed the flag. To my joy it eliminated my scrolling problem entirely. The profiling
graphs differed significantly between emacs compiled with and without the flag. It was not simply the hot-spots
which were similar but it looked like the call-paths changed.

I am using gcc 4.2.2, emacs 23.0.60, on i686-pc-gnu-linux. This is not a problem report, just a FYI that
-fomit-frame-pointer may cause serious problems with emacs. If this is not already known to the emacs developers
then I hope this tidbit helps other users/developers.

Cheers,
Mike mattie

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             reply	other threads:[~2007-12-16 11:38 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-16 11:38 Mike Mattie [this message]
2007-12-17  8:25 ` -fomit-frame-pointer lossage FYI Richard Stallman

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