Mailing-List: contact cygwin-help@sourceware.cygnus.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@sources.redhat.com Delivered-To: mailing list cygwin@sources.redhat.com Date: Fri, 16 Feb 2001 12:00:12 -0500 From: Christopher Faylor To: Cygwin-L Subject: Re: Optimizing away "ReadFile" calls when Make calls stat() Message-ID: <20010216120012.B19321@redhat.com> Reply-To: cygwin@cygwin.com Mail-Followup-To: Cygwin-L References: <20010213190131.14369.qmail@lizard.curl.com> <200102131935.OAA09136@envy.delorie.com> <20010213194612.17311.qmail@lizard.curl.com> <200102131954.OAA09284@envy.delorie.com> <20010213152313.A12830@redhat.com> <39319402546.20010214110838@logos-m.ru> <4.3.1.2.20010215160534.04a66d40@pop.ma.ultranet.com> <3A8C5599.EA52B4EC@ece.gatech.edu> <3A8CF411.D0279DA1@etr-usa.com> <4.3.1.2.20010216105803.01952e48@pop.ma.ultranet.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.11i In-Reply-To: <4.3.1.2.20010216105803.01952e48@pop.ma.ultranet.com>; from lhall@rfk.com on Fri, Feb 16, 2001 at 10:59:49AM -0500 On Fri, Feb 16, 2001 at 10:59:49AM -0500, Larry Hall (RFK Partners, Inc) wrote: >At 04:34 AM 2/16/2001, Warren Young wrote: >>"Charles S. Wilson" wrote: >> > >> > If I were porting an old app from unix to cygwin, and wanted to tune >> > performance, I'd much rather do this: >> >>Both you and Jonathan have understood my intent perfectly. >> >>Christopher, please do consider this proposal. It's easy to implement >>-- probably just a few tweaks on Egor's patch -- and it makes it easy to >>gain performance with straightforward patches to affected programs. >>It'd be nice if we can make Cygwin faster, but this proposal has an >>inherent advantage: the calling process _knows_ what it wants, whereas >>Cygwin can only guess or anticipate. >> >>Egor, Jonathan, maybe some benchmarks would help convince Christopher of >>the patch's utility. > >Chris sent some email about this yesterday. He's looking at the possibility >of eliminating this problem without changing the API. Nice to see that *someone* is paying attention. cgf -- Want to unsubscribe from this list? Check out: http://cygwin.com/ml/#unsubscribe-simple