From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: XeCycle Newsgroups: gmane.emacs.help Subject: Re: Preloading TAGS and completion table (resend) Date: Wed, 11 Jul 2012 19:07:21 +0800 Message-ID: <87y5mqftee.fsf@xc.laptop> References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha1; protocol="application/pgp-signature" X-Trace: dough.gmane.org 1342005078 16179 80.91.229.3 (11 Jul 2012 11:11:18 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Wed, 11 Jul 2012 11:11:18 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Jul 11 13:11:18 2012 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1SoupB-0005wH-Lt for geh-help-gnu-emacs@m.gmane.org; Wed, 11 Jul 2012 13:11:17 +0200 Original-Received: from localhost ([::1]:53598 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SoupA-00048F-Ls for geh-help-gnu-emacs@m.gmane.org; Wed, 11 Jul 2012 07:11:16 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:60083) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Soup0-00047Q-GQ for help-gnu-emacs@gnu.org; Wed, 11 Jul 2012 07:11:12 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Souov-0008BC-Gj for help-gnu-emacs@gnu.org; Wed, 11 Jul 2012 07:11:06 -0400 Original-Received: from plane.gmane.org ([80.91.229.3]:37772) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Souov-0008Am-9W for help-gnu-emacs@gnu.org; Wed, 11 Jul 2012 07:11:01 -0400 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Souor-0005QX-Iz for help-gnu-emacs@gnu.org; Wed, 11 Jul 2012 13:10:57 +0200 Original-Received: from 59.78.37.25 ([59.78.37.25]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 11 Jul 2012 13:10:57 +0200 Original-Received: from XeCycle by 59.78.37.25 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 11 Jul 2012 13:10:57 +0200 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 76 Original-X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: 59.78.37.25 User-Agent: Gnus/5.130006 (Ma Gnus v0.6) Emacs/24.1.50 (gnu/linux) Cancel-Lock: sha1:Vrx9jfZbh+FNjw8I8WZeNYpGPBA= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:85786 Archived-At: --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable "Ludwig, Mark" writes: > [Sorry, resending in plain text] > > I use Emacs to maintain a large software system (>10,000,000 > lines of code). We have multiple releases in the field under > active maintenance (plus the next release under development). I > have cron jobs that make TAGS daily (overnight) because it takes > hours to read the entire source in the multiple release source > branches. Each TAGS file per branch is over 40MB. I run an > instance of Emacs per release branch, because we use ClearCase, > so the "same file name" potentially has different contents > depending on the view (i.e., can't use Emacs Server across > releases). > > When I want to use tag completion, it takes about a minute for > Emacs to construct the completion table. (By TAGS I assume you're using etags completion) Have you tried gtags? I tried it in Linux kernel source, and it gives completion list beginning with two letters in roughly 0.1 secs. The time may vary, but I think it should be able to give you the list in seconds. > Meanwhile, I can't do anything else in Emacs. I'm wondering if > it's possible to get the completion table pre-loaded in the > background, so when I am finding a tag and hit '?' I get an > instantaneous response the first time, instead of a minute-long > wait. > > For context, I have been using EMACS/Emacs for over 30 years and > my .emacs file is tiny, only pointing to another file with the > real customization. My customization is ~1,000 lines, and I > byte-compile it. I like pretending my name is Luke and using the > source, but could use some tips and pointers about whether it's a > good idea to try this in the background. I'm not even sure it's > possible to run this in the background (asynchronously). Does > Emacs have such asynchronous execution capability? > > If asynchronous execution isn't possible or wise, I'll settle for > a way to forcibly load the completion table (without my needing > to manually trigger it). I don't see a way to do that, either. > > Thanks in advance! > Mark > > P.S. If there is a better e-mail list for this question, please let me kn= ow. > > =2D-=20 Carl Lei (XeCycle) Department of Physics, Shanghai Jiao Tong University OpenPGP public key: 7795E591 Fingerprint: 1FB6 7F1F D45D F681 C845 27F7 8D71 8EC4 7795 E591 --=-=-= Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iQEcBAEBAgAGBQJP/V5sAAoJEI1xjsR3leWRnAoIAMkTwtnEUq6A7g6j+6YXDX3t fI3IYa41yLO9Qi28bzQadQAWzn6IBaf1ik5PwPhLcm5HkezJCVXL1H+a8Dz/Wr8r pnPbGhUzuNywkKyEbhardn696nyjlZkuGAjKz3IgP+kzWel3PgTsPT1s6RFNuVX7 CU6dpzvML1goDwjJrLL2ak+f5BJPmvfhIZwiDwMyvPx37xNM8cgelkbjafbXidXz giF9VNlwHFiIfW2vuhaC+XZmb6+iQp+aKi6zW/4+iwP/rDg2n09Wdc+KyN1vM8ok c7GBh4c7wbcU/VmwuQRE50enXlmiwomCEisQAGCVOwYSENqndOc2GU0R5uDA1kc= =QsJF -----END PGP SIGNATURE----- --=-=-=--