From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Lars Magne Ingebrigtsen Newsgroups: gmane.emacs.devel Subject: Re: Compiling Elisp to a native code with a GCC plugin Date: Thu, 16 Sep 2010 19:01:18 +0200 Organization: Programmerer Ingebrigtsen Message-ID: References: <87bp805ecr.fsf@gmail.com> <87iq26z97e.fsf@uwakimon.sk.tsukuba.ac.jp> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: dough.gmane.org 1284661512 5337 80.91.229.12 (16 Sep 2010 18:25:12 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Thu, 16 Sep 2010 18:25:12 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Sep 16 20:25:11 2010 Return-path: Envelope-to: ged-emacs-devel@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 1OwJ8u-000281-SL for ged-emacs-devel@m.gmane.org; Thu, 16 Sep 2010 20:25:09 +0200 Original-Received: from localhost ([127.0.0.1]:43817 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OwJ8t-0001ll-AS for ged-emacs-devel@m.gmane.org; Thu, 16 Sep 2010 14:25:07 -0400 Original-Received: from [140.186.70.92] (port=47082 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OwIEL-00016H-ST for emacs-devel@gnu.org; Thu, 16 Sep 2010 13:26:54 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OwHtb-0000el-0B for emacs-devel@gnu.org; Thu, 16 Sep 2010 13:05:18 -0400 Original-Received: from lo.gmane.org ([80.91.229.12]:58345) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OwHta-0000eW-Ky for emacs-devel@gnu.org; Thu, 16 Sep 2010 13:05:14 -0400 Original-Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1OwHtQ-0005Fm-Go for emacs-devel@gnu.org; Thu, 16 Sep 2010 19:05:04 +0200 Original-Received: from cm-84.215.34.171.getinternet.no ([84.215.34.171]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 16 Sep 2010 19:05:04 +0200 Original-Received: from larsi by cm-84.215.34.171.getinternet.no with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 16 Sep 2010 19:05:04 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: emacs-devel@gnu.org Original-Lines: 26 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: cm-84.215.34.171.getinternet.no Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAAElBMVEUuIhtpTCzbwZUGAwYV Dg5ENSMbGGRVAAACRElEQVQ4jU2UwY7jIAyGnS3c43S4b9DmXgkegFHcO8zU7/8q+9ukO4uqCvFh /7axQ0IUtz2U2lSjKmEFwaJAceRjAhBaO5GSBANbTrdSKUZDvKSe8CMhBThLAWBNnZn7ij9qNHI+ ABoBqPaoIRI0GnHOazEweIW3ZQzGDWqQyB8GInOaQJM2Mk/5G6Au8AzQ1QOm+JXzfhqIe84m0qmH 4DG5NgB2SWeOTdzT72Krma2ZePYOXhPY9gIhEOzzrTpYsvtKbkDZJOo/kUOnTTOwniKlSPUATV4v 8KotnFVO17tAANhDi2qgRfM7PJUXwIEqaZAWHpbT7haxA6xP2+PRXMR8eSaQeOoYA+UpVujMVyqQ iDpYe7hV0vyTPCQc0PMuQ6+AoU55bYOpiyx3ehlwXwh4f8XRCV0yhGqPE5hFQtsEOoswxdatKvuM 6+MR8Y4iLfF4Bpq+rI7fQt0q8skb06wKu8XZAGgtC+c1zKrsDqyf2pLC2HZm9MCsSnSgoeN+Zs4s LuLvjkuMB+YNPYIGc1/JQKNlPx9kz2pg+rKStLjwWdsF/lTvFbQWUFyRxRsUsZ33FrL4AR+Yk0sk JjGwvUGRL+sVswhShf8DvywTogcJ5g+N7uCO/nqaL6LafDbasr1BnaB4E0qR8QYFvg6AMkGxlDMi l/LwF3QgMHtayoz589UvC/w+t8zpOt7yOgFqgtEHuY4xSxMUaSPZyW5xW+THBWpUv7tfvhifDFun xDQ6xt+71h6pEA4NSMDIx+5fJDsofwHl8bmKnaLXJwAAAABJRU5ErkJggg== Mail-Copies-To: never X-Now-Playing: Kate Bush's _Lionheart_: "In The Warm Room" User-Agent: Gnus/5.110011 (No Gnus v0.11) Emacs/24.0.50 (gnu/linux) Cancel-Lock: sha1:iuSIblIbAUTX1zioyjtvQTR/dao= X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:130263 Archived-At: "Stephen J. Turnbull" writes: > Does every one-line function need to be a built-in? > > (defun is-the-string-following-point-equal-to-this-string-p (s) > (string= s (buffer-substring (point) (+ (point) (length s))))) > > or > > (defun is-the-string-following-point-equal-to-this-string-p (s) > (search-forward s (+ (point) (length s)) t)) Does everything have to be slow? :-) The first one (in addition to not really working all that well) makes a benchmark of (benchmark 10000 (goto-char (point-min)) (while (or (s (buffer-substring (point) (+ (point) (length "(defun "))) "(defun ") (search-forward "\n(defun " nil t)) (forward-line 1))) take 24 seconds, while the non-consing version takes 9 seconds. The latter version is only 50% slower than the single-search-forward version. -- (domestic pets only, the antidote for overdose, milk.) larsi@gnus.org * Lars Magne Ingebrigtsen