X-Spam-Check-By:	sourceware.org
From:	"Dave Korn" <dave DOT korn AT artimi DOT com>
To:	<cygwin AT cygwin DOT com>
References:	<942b10df0705120623r391f6bdeg7aaf5643901a03b0 AT mail DOT gmail DOT com> <Pine DOT CYG DOT 4 DOT 58 DOT 0705141605220 DOT 2772 AT PC1163-8460-XP DOT flightsafety DOT com> <4e41f5c20705150003u1123d937w1ac8e3e62cd4fe9a AT mail DOT gmail DOT com>
Subject:	RE: Speed of Cygwin's cp vs. Windows Explorer
Date:	Tue, 15 May 2007 10:29:55 +0100
Message-ID:	<079101c796d3$996a39d0$2e08a8c0@CAM.ARTIMI.COM>
MIME-Version:	1.0
X-Mailer:	Microsoft Office Outlook 11
In-Reply-To:	<4e41f5c20705150003u1123d937w1ac8e3e62cd4fe9a@mail.gmail.com>
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Unsubscribe:	<mailto:cygwin-unsubscribe-archive-cygwin=delorie DOT com AT cygwin DOT com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id l4F9VFAm030406

On 15 May 2007 08:03, Morgan Gangwere wrote:


> it would appear that until we increase the i/o buffer (am i using the
> right term?) to do the cp, we run slower than the windows cp
> 
> is there a #DEFINE or some thing that we could add a diff for that
> adventurous people could use?

  If you build from mainline source, (i.e. the upcoming 1.7 cygwin) you'll already get:

2007-01-04  Brian Ford  <>
	    Corinna Vinschen  <>

	* fhandler.h (PREFERRED_IO_BLKSIZE): Define as 64K.
	* fhandler.cc (fhandler_base::fstat): Set st_blksize to
	PREFERRED_IO_BLKSIZE.
	* fhandler_disk_file.cc (fhandler_base::fstat_helper): Ditto.
	* fhandler_mailslot.cc (fhandler_mailslot::fstat): Ditto.
	* fhandler_raw.cc (fhandler_dev_raw::fstat): Ditto.

  If you want to stick to 1.5 series, you could download a snapshot (source) and merge the diffs in yourself easily enough.


    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -