From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Glenn Morris Newsgroups: gmane.emacs.bugs Subject: bug#6996: `byte-compile-report-ops', `byte-code-meter', `byte-metering-on', what are they? Date: Tue, 7 Sep 2010 19:29:06 -0400 Message-ID: <19590.51906.678909.900661@fencepost.gnu.org> References: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1283902822 20076 80.91.229.12 (7 Sep 2010 23:40:22 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 7 Sep 2010 23:40:22 +0000 (UTC) Cc: 6996-done@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Sep 08 01:40:21 2010 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Ot7lw-0004aT-WF for geb-bug-gnu-emacs@m.gmane.org; Wed, 08 Sep 2010 01:40:17 +0200 Original-Received: from localhost ([127.0.0.1]:58839 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Ot7lw-0002CF-HU for geb-bug-gnu-emacs@m.gmane.org; Tue, 07 Sep 2010 19:40:16 -0400 Original-Received: from [140.186.70.92] (port=34933 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Ot7lp-0002BJ-4y for bug-gnu-emacs@gnu.org; Tue, 07 Sep 2010 19:40:09 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1Ot7lo-0005Ha-3w for bug-gnu-emacs@gnu.org; Tue, 07 Sep 2010 19:40:09 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:53604) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Ot7lo-0005HT-16 for bug-gnu-emacs@gnu.org; Tue, 07 Sep 2010 19:40:08 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.69) (envelope-from ) id 1Ot7a5-0004l0-TW for bug-gnu-emacs@gnu.org; Tue, 07 Sep 2010 19:28:01 -0400 Resent-From: Glenn Morris Original-Sender: debbugs-submit-bounces@debbugs.gnu.org Resent-To: bug-gnu-emacs@gnu.org Resent-Date: Tue, 07 Sep 2010 23:28:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: cc-closed 6996 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: notabug Mail-Followup-To: 6996@debbugs.gnu.org, rgm@gnu.org Original-Received: via spool by 6996-done@debbugs.gnu.org id=D6996.128390203318274 (code D ref 6996); Tue, 07 Sep 2010 23:28:01 +0000 Original-Received: (at 6996-done) by debbugs.gnu.org; 7 Sep 2010 23:27:13 +0000 Original-Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Ot7ZH-0004kh-RP for submit@debbugs.gnu.org; Tue, 07 Sep 2010 19:27:12 -0400 Original-Received: from fencepost.gnu.org ([140.186.70.10]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Ot7ZG-0004kc-Cg for 6996-done@debbugs.gnu.org; Tue, 07 Sep 2010 19:27:10 -0400 Original-Received: from rgm by fencepost.gnu.org with local (Exim 4.69) (envelope-from ) id 1Ot7b8-0005jE-QE; Tue, 07 Sep 2010 19:29:06 -0400 In-Reply-To: X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Resent-Date: Tue, 07 Sep 2010 19:28:01 -0400 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:40027 Archived-At: MON KEY wrote (on Tue, 7 Sep 2010 at 17:33 -0400): > `byte-compile-report-ops', `byte-code-meter', `byte-metering-on', what are they? > > Following files: > src/bytecode.c > lisp/emacs-lisp/bytecomp.el > > define the variables `byte-code-meter', `byte-metering-on' and a function > `byte-compile-report-ops'. >From src/bytecode.c: #ifdef BYTE_CODE_METER DEFVAR_LISP ("byte-code-meter", &Vbyte_code_meter,... ... #endif In the comments in the same file: define BYTE_CODE_METER to enable generation of a byte-op usage histogram. So if you are interested, why not define it, re-build and see what happens? I have no idea what it does, but since it is not on by default since 1991, and is not documented anywhere, I don't see it as a bug if it doesn't do whatever it is supposed to do. At the worst it is dead code that could be deleted.