From: Paul Eggert <eggert@cs.ucla.edu>
To: Glenn Morris <rgm@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: Which platforms do/do not support cpu time profiling?
Date: Tue, 20 Nov 2012 09:23:00 -0800 [thread overview]
Message-ID: <50ABBC74.9060507@cs.ucla.edu> (raw)
In-Reply-To: <qlk3tgryyy.fsf@fencepost.gnu.org>
On 11/20/12 09:00, Glenn Morris wrote:
> Why would I want to configure with --enable-profiling, and if I do, how
> do I use it?
You'd do that if you want a low-level CPU profile, one that
maps instruction counts to C functions (or even to
machine instructions). You run Emacs and it automatically
generates a file gmon.out when it exits. You then run
the shell command 'gprof emacs gmon.out' to get a textual summary of the
CPU profile.
It's helpful sometimes, when debugging, to get a profile
at this low level rather than at the Lisp level, which
is what the Emacs profiler does.
prev parent reply other threads:[~2012-11-20 17:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-20 1:25 Which platforms do/do not support cpu time profiling? Glenn Morris
2012-11-20 3:00 ` Glenn Morris
2012-11-20 3:51 ` Eli Zaretskii
2012-11-20 3:56 ` Paul Eggert
2012-11-20 17:00 ` Glenn Morris
2012-11-20 17:23 ` Paul Eggert [this message]
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