From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: xfq Newsgroups: gmane.emacs.devel Subject: Re: About GSoC 2013 Date: Mon, 22 Apr 2013 21:13:40 +0800 Message-ID: References: <87y5cahgbv.fsf@gmail.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1366636467 26969 80.91.229.3 (22 Apr 2013 13:14:27 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 22 Apr 2013 13:14:27 +0000 (UTC) To: emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Apr 22 15:14:32 2013 Return-path: Envelope-to: ged-emacs-devel@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 1UUGZh-000830-NW for ged-emacs-devel@m.gmane.org; Mon, 22 Apr 2013 15:14:29 +0200 Original-Received: from localhost ([::1]:41519 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UUGZh-0004e1-2H for ged-emacs-devel@m.gmane.org; Mon, 22 Apr 2013 09:14:29 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:44859) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UUGYw-0002vs-2D for emacs-devel@gnu.org; Mon, 22 Apr 2013 09:13:43 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UUGYu-0007GC-Pd for emacs-devel@gnu.org; Mon, 22 Apr 2013 09:13:42 -0400 Original-Received: from mail-ia0-x22c.google.com ([2607:f8b0:4001:c02::22c]:45956) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UUGYu-0007G6-L0 for emacs-devel@gnu.org; Mon, 22 Apr 2013 09:13:40 -0400 Original-Received: by mail-ia0-f172.google.com with SMTP id i20so1238536ian.31 for ; Mon, 22 Apr 2013 06:13:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:content-type; bh=S5IM45Nx7QKcoeDHtHI6zdgSWb70vb+W1ruiQeVTrGY=; b=j+VfxZ6/ZKUYODjRtokl81RhAOxFw2KAhlHXHsxfjzuLo+ElH7EA4ntm4IXnI+KRUb Fa8U9Eh+Wkskkwb5zWhpf+Yby5QEIMQe8na6JgXGxdQAyanaFx7Cg8UL24pttUnAmtKB jz02EiIklTCM6FhBPC/YqrjDcUxEtCeV0KHCNU8Ocbxb2lVwA2DLWoPufs8Ez5VuMnOc 3tqHenfj8sLsdx85DxAIp94Qb8ryQb5U3CjTxTNLYgbPAgf6pJuhN0doPOpobwATu0kX CNb9H0s77WNw4qcoQ+1c0POayDDb1iXeSCcKw0QTaAgJlaKNmsWLTogDYD08o3G4OlTW CYlg== X-Received: by 10.50.55.8 with SMTP id n8mr8016606igp.28.1366636420250; Mon, 22 Apr 2013 06:13:40 -0700 (PDT) Original-Received: by 10.43.18.10 with HTTP; Mon, 22 Apr 2013 06:13:40 -0700 (PDT) In-Reply-To: <87y5cahgbv.fsf@gmail.com> X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2607:f8b0:4001:c02::22c X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:159109 Archived-At: On Mon, Apr 22, 2013 at 8:59 PM, Jambunathan K wrote: > Stefan Monnier - the Emacs maintainer - has already indicated two > projects. > > Both concern overlays. A very dedicated and an ambitious contributor > can, by pushing the limits, can even get intimate with the display > engine - apparently one of the holy grails. > > 1. Using interval trees for overlays > Programming language: C > > http://lists.gnu.org/archive/html/emacs-devel/2012-08/msg00308.html > > 2. Introduction of "text planes". > Programming language: Mostly Emacs Lisp, may involve some C > > http://lists.gnu.org/archive/html/emacs-devel/2010-10/msg00177.html > > For the most ambitious of the students, > > 3. Improving the performance of the display engine particularly for a > typical Orgmode workload. > > Focus on Eli's followups in this thread. > > http://lists.gnu.org/archive/html/emacs-orgmode/2013-04/msg00696.html. Thanks for these pointers, I'll see them later. > There may be some requirements on concurrent Emacs side. I have never > seen a self-contained, well-defined work item myself. The concurrency concept is dimness to me: which form of concurrency (locks, transactions, younameit)? -- Best regards, Xue Fuqiao.