delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin/2001/02/16/11:07:49

Mailing-List: contact cygwin-help AT sourceware DOT cygnus DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT sources DOT redhat DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin/>
List-Post: <mailto:cygwin AT sources DOT redhat DOT com>
List-Help: <mailto:cygwin-help AT sources DOT redhat DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender: cygwin-owner AT sources DOT redhat DOT com
Delivered-To: mailing list cygwin AT sources DOT redhat DOT com
Message-Id: <4.3.1.2.20010216105803.01952e48@pop.ma.ultranet.com>
X-Sender: lhall AT pop DOT ma DOT ultranet DOT com
X-Mailer: QUALCOMM Windows Eudora Version 4.3.1
Date: Fri, 16 Feb 2001 10:59:49 -0500
To: Warren Young <warren AT etr-usa DOT com>, Cygwin-L <cygwin AT cygwin DOT com>
From: "Larry Hall (RFK Partners, Inc)" <lhall AT rfk DOT com>
Subject: Re: Optimizing away "ReadFile" calls when Make calls stat()
In-Reply-To: <3A8CF411.D0279DA1@etr-usa.com>
References: <4 DOT 3 DOT 1 DOT 2 DOT 20010213134821 DOT 019a7130 AT pop DOT ma DOT ultranet DOT com>
<20010213190131 DOT 14369 DOT qmail AT lizard DOT curl DOT com>
<200102131935 DOT OAA09136 AT envy DOT delorie DOT com>
<20010213194612 DOT 17311 DOT qmail AT lizard DOT curl DOT com>
<200102131954 DOT OAA09284 AT envy DOT delorie DOT com>
<20010213152313 DOT A12830 AT redhat DOT com>
<39319402546 DOT 20010214110838 AT logos-m DOT ru>
<4 DOT 3 DOT 1 DOT 2 DOT 20010215160534 DOT 04a66d40 AT pop DOT ma DOT ultranet DOT com>
<3A8C5599 DOT EA52B4EC AT ece DOT gatech DOT edu>
Mime-Version: 1.0

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.



Larry Hall                              lhall AT rfk DOT com
RFK Partners, Inc.                      http://www.rfk.com
118 Washington Street                   (508) 893-9779 - RFK Office
Holliston, MA 01746                     (508) 893-9889 - FAX



--
Want to unsubscribe from this list?
Check out: http://cygwin.com/ml/#unsubscribe-simple

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019