X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org To: cygwin@cygwin.com From: Thorsten Kampe Subject: Re: [ANNOUNCEMENT] Updated: [experimental] cygwin-1.5.25-1 Date: Sat, 24 Nov 2007 13:09:39 -0000 Lines: 47 Message-ID: References: <20071123162550.GA1632@ednor.casa.cgf.cx> <20071123173258.GA2685@ednor.casa.cgf.cx> <20071123173830.GB2685@ednor.casa.cgf.cx> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit User-Agent: MicroPlanet-Gravity/2.70.2067 X-IsSubscribed: yes 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 * Christopher Faylor (Fri, 23 Nov 2007 12:38:30 -0500) > On Fri, Nov 23, 2007 at 12:32:58PM -0500, Christopher Faylor wrote: > >On Fri, Nov 23, 2007 at 05:04:38PM -0000, Thorsten Kampe wrote: > >>* Christopher Faylor (Fri, 23 Nov 2007 11:25:50 -0500) > >>> On Thu, Nov 22, 2007 at 06:05:49PM -0000, Thorsten Kampe wrote: > >>> >* Corinna Vinschen (Thu, 22 Nov 2007 16:42:10 +0100) > >>> >> ==== CYGWIN THANKSGIVING EDITION ==== > >>> >> > >>> >> I've made the new version of the Cygwin DLL, 1.5.25-1, and associated > >>> >> utilities available for testing. Version 1.5.24-2 remains the current > >>> >> version for now. > >>> >> > >>> >> This is a bug fix release. Important changes since 1.5.24-2: > >>> > > >>> >Unfortunately the changes that made rsync run about 2 - 6 times faster > >>> >[1] (on a backup of about 100,000 files residing on a FAT32 volume) > >>> >didn't make it into the prelease. > >>> > > >>> >The first snapshot that exhibited the stunning increase was the > >>> >snapshot from 2007-08-02 and the last one was the snapshot from 2007- > >>> >08-13. > >>> > > >>> >[1] http://thread.gmane.org/gmane.os.cygwin/91350/focus=91509 > >>> > >>> So, does this mean that the snapshot was faster and then it wasn't? > >> > >>Yes, all the snapshots between 2007-08-02 and 2007-08-13 were much > >>faster. You remarked "does rsync use pipes by any chance? If so, that > >>may be at least part of the reason since that code has been revamped." > > > >Yes. I read and recall my comments. Since I didn't remove any of the > >pipe code, if it is now slower, then I don't understand what caused the > >slowdown. > > Also, just for clarity, are you saying that 2007-08-13 was fast but > 2007-08-31 was not? Yes. And I tried every snapshot after that. I realise that you (or Corinna) might have better things do than looking into a speed increase with one application (rsync) that only I have noticed. If there is a real chance for figuring this out I would verify my observations again - especially that the first "fast" snapshot was 2007-08-02 and the last "fast one" 2007-08-13 and some concrete figures about the speed increase. Thorsten -- 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/