X-Recipient: archive-cygwin@delorie.com X-SWARE-Spam-Status: No, hits=-2.4 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS X-Spam-Check-By: sourceware.org Message-ID: <4A42DAB6.1010408@cygwin.com> Date: Wed, 24 Jun 2009 22:02:30 -0400 From: "Larry Hall (Cygwin)" Reply-To: cygwin@cygwin.com User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.21) Gecko/20090320 Remi/2.0.0.21-1.fc8.remi Lightning/0.9 Thunderbird/2.0.0.21 Mnenhy/0.7.5.0 MIME-Version: 1.0 To: cygwin@cygwin.com Subject: Re: Slow/sluggish response ("system" task at 50%) References: <4A3FCCBD.70101@cygwin.com> <4A401CF4.6050202@cygwin.com> <4A405B7D.7020700@cygwin.com> <4A411665.1040300@cygwin.com> <4A4167A4.4090900@gmail.com> <4A428460.4000402@cygwin.com> <4A428B01.5010903@sidefx.com> <4A429ABE.8080201@cygwin.com> <53046.99.237.216.211.1245894582.squirrel@www.sidefx.com> In-Reply-To: <53046.99.237.216.211.1245894582.squirrel@www.sidefx.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Edward Lam wrote: > On Wed, June 24, 2009 17:29, Larry Hall (Cygwin) wrote: >> Sure, we all know that Cygwin provides Linux emulation and suffers some >> overhead for it. But timings from an individual machine can be >> misleading. >> Running this through multiple times for both Mingw and Cygwin 1.7 on my >> similarly equipped machine, I see Cygwin is somewhere between 1.7 and 2.25 >> times slower. Whether yours or my result is more typical, I can't say. >> But as you noted, neither data set provides much justification for the >> results reported. > > Larry, > > Are you on 32-bit Windows or 64-bit Windows? I've noted on this mailing > list earlier that there are large speed differences between the two. I > wonder which platform Gene is on. The tr test results are consistent on > Windows 64-bit for me. Good point. My test was run against 32-bit Windows. Gene's cygcheck output says he's running 32-bit Windows as well. > I don't quite understand what MINGW32 is doing that makes it ~2 times > faster than cygwin. It has to do with what it doesn't do. But I think the more interesting issue is what's making things _so_ slow in some of his builds. -- Larry Hall http://www.rfk.com RFK Partners, Inc. (508) 893-9779 - RFK Office 216 Dalton Rd. (508) 893-9889 - FAX Holliston, MA 01746 _____________________________________________________________________ A: Yes. > Q: Are you sure? >> A: Because it reverses the logical flow of conversation. >>> Q: Why is top posting annoying in email? -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple