Noam Postavsky <npostavs@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Glenn Morris <rgm@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Glenn Morris <rgm@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Stefan Monnier <monnier@HIDDEN>
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Subject: Re: bug#9065: 24.0.50; ESC-> does not seem to function
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Dyballa's message of "Sun, 9 Oct 2011 12:24:01 +0200")
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retitle 9065 Speed up compile.el scanning
thanks
Yes, the scanning performed is problematic for large buffers.
There are several ways to improve the problem:
1- make the job more lazy. E.g. split compilation--ensure-parse into 3 parts:
a- a position independent part (that can be done one a region
regardless of preceding text) to use in font-lock.
b- a position-dependent part doing all the heavy lifting, used in next-error.
c- the rest is also position-dependent but also used from font-lock,
i.e. works just like the current compilation--ensure-parse and hence
is the source of performance problem (so it should do as little as
possible).
2- speed up the scanning done in syntax-propertize.
I suspect most of the time is spent regexp-matching, and this regexp
matching can be done some other way (instead of a loop over various
regexps each one matched via re-search-forward using a backtracking
matcher, we could combine them all into a single regexp matched via
a non-backtracking matcher, except for the few regexps using back-refs).
I.e. option (2) is clearly possible and could reduce the performance
problem by a very large amount.
But option (1) is also possible and highly desirable.
Patches welcome.
Stefan
bug-gnu-emacs@HIDDEN:bug#9065; Package emacs.
Full text available.Received: (at 9065) by debbugs.gnu.org; 9 Oct 2011 10:27:04 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Oct 09 06:27:04 2011 Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1RCqb1-0003SO-3O for submit <at> debbugs.gnu.org; Sun, 09 Oct 2011 06:27:04 -0400 Received: from mout6.freenet.de ([195.4.92.96]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from <Peter_Dyballa@HIDDEN>) id 1RCqaw-0003Ru-6d for 9065 <at> debbugs.gnu.org; Sun, 09 Oct 2011 06:27:00 -0400 Received: from [195.4.92.141] (helo=mjail1.freenet.de) by mout6.freenet.de with esmtpa (ID peter_dyballa@HIDDEN) (port 25) (Exim 4.76 #5) id 1RCqao-0008K1-Rv; Sun, 09 Oct 2011 12:26:50 +0200 Received: from localhost ([::1]:52379 helo=mjail1.freenet.de) by mjail1.freenet.de with esmtpa (ID peter_dyballa@HIDDEN) (Exim 4.76 #1) id 1RCqao-0005kH-Ny; Sun, 09 Oct 2011 12:26:50 +0200 Received: from [195.4.92.18] (port=46561 helo=8.mx.freenet.de) by mjail1.freenet.de with esmtpa (ID peter_dyballa@HIDDEN) (Exim 4.76 #1) id 1RCqY9-0004VP-2D; Sun, 09 Oct 2011 12:24:05 +0200 Received: from ip-88-153-242-186.unitymediagroup.de ([88.153.242.186]:53037 helo=Latsche.fritz.box) by 8.mx.freenet.de with esmtpsa (ID peter_dyballa@HIDDEN) (TLSv1:AES128-SHA:128) (port 587) (Exim 4.76 #1) id 1RCqY8-0006zx-RF; Sun, 09 Oct 2011 12:24:04 +0200 Message-Id: <71CC3B57-1E83-411E-8D5D-473F946659BA@HIDDEN> From: Peter Dyballa <Peter_Dyballa@HIDDEN> To: Lars Magne Ingebrigtsen <larsi@HIDDEN> In-Reply-To: <m3r53nk8r9.fsf@HIDDEN> Content-Type: text/plain; charset=WINDOWS-1252; format=flowed; delsp=yes Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Apple Message framework v936) Subject: Re: 24.0.50; ESC-> does not seem to function Date: Sun, 9 Oct 2011 12:24:01 +0200 References: <1AB10BE2-8490-4365-BB96-586D68F69C1A@HIDDEN> <m3r53nk8r9.fsf@HIDDEN> X-Mailer: Apple Mail (2.936) X-Spam-Score: -3.4 (---) X-Debbugs-Envelope-To: 9065 Cc: 9065 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Sender: debbugs-submit-bounces <at> debbugs.gnu.org Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org X-Spam-Score: -3.3 (---) Am 11.09.2011 um 06:23 schrieb Lars Magne Ingebrigtsen: > Peter Dyballa <Peter_Dyballa@HIDDEN> writes: > >> Launched with -Q, to see whether effects I encounter in customised >> copy might be due to the customisation. Here in a *compilation* =20 >> buffer >> the compilation of GCC happens =96 100,000 or so lines of output. =20 >> When I >> want to go the bottom of the buffer and type ESC-> the wristwatch >> cursor appears. It can stay of minutes, maybe even longer. No =20 >> movement >> of the text in the buffer happens. But when I press C-g the cursor is >> at once at the end of the buffer and is pushed further forward from >> the output just happening. > > Try (setq debug-on-quit t) and then `C-g'. Post the backtrace here. The failure is never so severe that it comes to debugging ... But I =20 found the cause for the slow down, when I repeated this a lot in =20 *compilation* buffers with warnings in them: the cursor is not just =20 moved to the end of the buffer, while this happens the text is scanned =20= for warnings, errors, etc. The same seems to be true when using =20 isearch. It's also pretty slow in *compilation* buffers. I don't know whether this is documented (it should be). What I'd wish =20= is that I could configure/customise the (large, > 10,000 lines) =20 *compilation* buffers (often compiling with -H and -Wl,-t) that it is =20= not scanned for compiler reports, either unconditionally or =20 conditionally based on the number of lines in the buffer, that this =20 scanning stops when the number becomes greater than a certain value. =20 There are means to search for these compiler reports, so there should =20= not be a side-project performed when moving the mark or isearch'ing. -- Greetings Pete Almost anything is easier to get into than out of. =96 Allen's Law
bug-gnu-emacs@HIDDEN:bug#9065; Package emacs.
Full text available.Received: (at 9065) by debbugs.gnu.org; 11 Sep 2011 04:47:25 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Sep 11 00:47:25 2011 Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1R2bwz-00088B-Bm for submit <at> debbugs.gnu.org; Sun, 11 Sep 2011 00:47:25 -0400 Received: from hermes.netfonds.no ([80.91.224.195]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from <larsi@HIDDEN>) id 1R2bwv-00087d-EJ for 9065 <at> debbugs.gnu.org; Sun, 11 Sep 2011 00:47:22 -0400 Received: from cm-84.215.51.58.getinternet.no ([84.215.51.58] helo=stories.gnus.org) by hermes.netfonds.no with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from <larsi@HIDDEN>) id 1R2bsj-0001Zf-J6; Sun, 11 Sep 2011 06:43:01 +0200 From: Lars Magne Ingebrigtsen <larsi@HIDDEN> To: Peter Dyballa <Peter_Dyballa@HIDDEN> Subject: Re: 24.0.50; ESC-> does not seem to function In-Reply-To: <1AB10BE2-8490-4365-BB96-586D68F69C1A@HIDDEN> (Peter Dyballa's message of "Wed, 13 Jul 2011 11:01:15 +0200") Date: Sun, 11 Sep 2011 06:23:06 +0200 Message-ID: <m3r53nk8r9.fsf@HIDDEN> References: <1AB10BE2-8490-4365-BB96-586D68F69C1A@HIDDEN> User-Agent: Gnus/5.110018 (No Gnus v0.18) Emacs/24.0.50 (gnu/linux) X-Now-Playing: Colourbox's _Punch_: "Keep On Pushing" MIME-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable X-MailScanner-ID: 1R2bsj-0001Zf-J6 X-Netfonds-MailScanner: Found to be clean X-Netfonds-MailScanner-From: larsi@HIDDEN MailScanner-NULL-Check: 1316320981.65255@rpCQjtcQFeeL4L3pc+QVAA X-Spam-Status: No X-Spam-Score: -2.7 (--) X-Debbugs-Envelope-To: 9065 Cc: 9065 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Sender: debbugs-submit-bounces <at> debbugs.gnu.org Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org X-Spam-Score: -2.7 (--) Peter Dyballa <Peter_Dyballa@HIDDEN> writes: > Launched with -Q, to see whether effects I encounter in customised > copy might be due to the customisation. Here in a *compilation* buffer > the compilation of GCC happens =96 100,000 or so lines of output. When I > want to go the bottom of the buffer and type ESC-> the wristwatch > cursor appears. It can stay of minutes, maybe even longer. No movement > of the text in the buffer happens. But when I press C-g the cursor is > at once at the end of the buffer and is pushed further forward from > the output just happening. Try (setq debug-on-quit t) and then `C-g'. Post the backtrace here. --=20 (domestic pets only, the antidote for overdose, milk.) bloggy blog http://lars.ingebrigtsen.no/
owner <at> debbugs.gnu.org, bug-gnu-emacs@HIDDEN:bug#9065; Package emacs.
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X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 140.186.70.17 X-Spam-Score: -5.1 (-----) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <http://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <http://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <http://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Sender: debbugs-submit-bounces <at> debbugs.gnu.org Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org X-Spam-Score: -5.2 (-----) Hello! In GNU Emacs 24.0.50.1 (powerpc-apple-darwin9.8.0, GTK+ Version 2.24.4) of 2011-07-02 on ip-109-91-229-51.unitymediagroup.de Windowing system distributor `The X.Org Foundation', version =20 11.0.11002000 configured using `configure '--without-sound' '--without-dbus' '--=20 without-pop' '--without-gconf' '--without-gpm' '--without-gsettings' =20 '--with-x-toolkit=3Dgtk' '--enable-locallisppath=3D/Library/Application =20= Support/Emacs/calendar24:/Library/Application Support/Emacs' 'CFLAGS=3D-=20= g -H -pipe -fPIC -fno-common -mcpu=3D7450 -mtune=3D7450 -maltivec -=20 faltivec -mabi=3Daltivec -Os -mfused-madd -mmultiple -ftree-vectorize' =20= 'LDFLAGS=3D-Wl,-dead_strip_dylibs -Wl,-bind_at_load -Wl,-t' 'CC=3Dgcc-4' = =20 'CPP=3Dcpp-4' = 'PKG_CONFIG_PATH=3D/opt/local/lib/pkgconfig:/opt/local/share/=20 pkgconfig:/usr/lib/pkgconfig'' Important settings: value of $LC_ALL: nil value of $LC_COLLATE: nil value of $LC_CTYPE: de_DE.UTF-8 value of $LC_MESSAGES: nil value of $LC_MONETARY: nil value of $LC_NUMERIC: nil value of $LC_TIME: nil value of $LANG: de_DE.UTF-8 value of $XMODIFIERS: nil locale-coding-system: utf-8-unix default enable-multibyte-characters: t Major mode: Compilation Minor modes in effect: shell-dirtrack-mode: t text-scale-mode: t tooltip-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Launched with -Q, to see whether effects I encounter in customised =20 copy might be due to the customisation. Here in a *compilation* buffer =20= the compilation of GCC happens =96 100,000 or so lines of output. When I = =20 want to go the bottom of the buffer and type ESC-> the wristwatch =20 cursor appears. It can stay of minutes, maybe even longer. No movement =20= of the text in the buffer happens. But when I press C-g the cursor is =20= at once at the end of the buffer and is pushed further forward from =20 the output just happening. I have the impression that a few thousand lines have to be between the =20= point where I type ESC-> and the end of the buffer =96 and maybe text =20= insertion has to happen. One constraint could also be heavy CPU load =20 and GNU Emacs swapped out due to leaving it untouched for hours. It =20 behaves very inert when I pick it to be the active X client. The =20 cursor appears after seconds and heavy disk activity is indicated. -- Greetings Pete Imbecility, n.: A kind of divine inspiration, or sacred fire affecting = censorious =20 critics of this dictionary. =96 Ambrose Bierce: _The Devil's = Dictionary_
Peter Dyballa <Peter_Dyballa@HIDDEN>:bug-gnu-emacs@HIDDEN.
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