From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stephen Leake Newsgroups: gmane.emacs.bugs Subject: bug#18626: 24.3.94; communication with subprocess is slow Date: Sun, 05 Oct 2014 08:34:30 -0500 Message-ID: <854mviej2x.fsf@stephe-leake.org> References: <85wq8ge3gr.fsf@stephe-leake.org> <85d2a8dzkh.fsf@stephe-leake.org> <83lhowgrr3.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1412516124 8966 80.91.229.3 (5 Oct 2014 13:35:24 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 5 Oct 2014 13:35:24 +0000 (UTC) Cc: 18626@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Oct 05 15:35:17 2014 Return-path: Envelope-to: geb-bug-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 1Xaly0-0000LB-Pj for geb-bug-gnu-emacs@m.gmane.org; Sun, 05 Oct 2014 15:35:16 +0200 Original-Received: from localhost ([::1]:47522 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xaly0-0000gI-FL for geb-bug-gnu-emacs@m.gmane.org; Sun, 05 Oct 2014 09:35:16 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:59519) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xalxs-0000dt-Oj for bug-gnu-emacs@gnu.org; Sun, 05 Oct 2014 09:35:14 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Xalxm-0002q8-S8 for bug-gnu-emacs@gnu.org; Sun, 05 Oct 2014 09:35:08 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:42008) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xalxm-0002pV-Nt for bug-gnu-emacs@gnu.org; Sun, 05 Oct 2014 09:35:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1Xalxm-00049X-6B for bug-gnu-emacs@gnu.org; Sun, 05 Oct 2014 09:35:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stephen Leake Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 05 Oct 2014 13:35:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18626 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 18626-submit@debbugs.gnu.org id=B18626.141251607715911 (code B ref 18626); Sun, 05 Oct 2014 13:35:02 +0000 Original-Received: (at 18626) by debbugs.gnu.org; 5 Oct 2014 13:34:37 +0000 Original-Received: from localhost ([127.0.0.1]:33572 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XalxM-00048Y-4h for submit@debbugs.gnu.org; Sun, 05 Oct 2014 09:34:36 -0400 Original-Received: from dnvrco-outbound-snat.email.rr.com ([107.14.73.231]:45990 helo=dnvrco-oedge-vip.email.rr.com) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XalxH-00048O-JR for 18626@debbugs.gnu.org; Sun, 05 Oct 2014 09:34:32 -0400 Original-Received: from [70.94.38.149] ([70.94.38.149:49541] helo=TAKVER) by dnvrco-oedge02 (envelope-from ) (ecelerity 3.5.0.35861 r(Momo-dev:tip)) with ESMTP id 42/C4-08316-6E841345; Sun, 05 Oct 2014 13:34:30 +0000 In-Reply-To: <83lhowgrr3.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 04 Oct 2014 11:32:00 +0300") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (windows-nt) X-RR-Connecting-IP: 107.14.64.130:25 X-Authority-Analysis: v=2.1 cv=ReIeCjdv c=1 sm=1 tr=0 a=AppmJ/7ZOOFWL/q6u6u93g==:117 a=AppmJ/7ZOOFWL/q6u6u93g==:17 a=ayC55rCoAAAA:8 a=9XSUBuVRJI8A:10 a=o_R75loqY_IA:10 a=9i_RQKNPAAAA:8 a=mDV3o1hIAAAA:8 a=fMqkbcfAKPJPCgNnFaoA:9 a=ii61gXl28gQA:10 a=FMD1XRJ_Ct4A:10 X-Cloudmark-Score: 0 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:94161 Archived-At: Eli Zaretskii writes: >> From: Stephen Leake >> >> (find-file "xdisp.c") >> (pipe-torture "debug.exe" "4096") >> >> delay time >> ------------------------ >> 20 * 1000 * 1000 4.450068 >> 10 * 1000 * 1000 2.443788 >> 0 * 1000 * 1000 hangs until C-g >> > > Did you try with 5 msec instead of zero? No, that seemed obvious :). > Anyway, for 24.4 all I can suggest is a variable to replace the fixed > 20 msec value. Doing anything more complicated than that would be too > dangerous this late into the pretest. Right, and I have a good work-around for it (use a large enough buffer in the subprocess). But I'd like to understand the delay on reading from subprocesses. -- -- Stephe