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Date: Fri, 23 Nov 2007 12:38:30 -0500
From: Christopher Faylor <cgf-use-the-mailinglist-please AT cygwin DOT com>
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Subject: Re: [ANNOUNCEMENT] Updated: [experimental] cygwin-1.5.25-1
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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?

cgf

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