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Mail Archives: cygwin/2003/06/06/09:53:48

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Date: Fri, 6 Jun 2003 09:53:42 -0400
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Sparse file criteria malfunction - binutils produces sparse .exe & .dll files
Message-ID: <20030606135342.GA2944@redhat.com>
Reply-To: cygwin AT cygwin DOT com
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References: <3EDF9E8D DOT AA452A2E AT ieee DOT org> <20030606081225 DOT GD12547 AT cygbert DOT vinschen DOT de> <002a01c32c05$bf79e040$78d96f83 AT pomello> <20030606130714 DOT GA26173 AT redhat DOT com>
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On Fri, Jun 06, 2003 at 09:07:14AM -0400, Christopher Faylor wrote:
>On Fri, Jun 06, 2003 at 09:29:28AM +0100, Max Bowsher wrote:
>>Corinna Vinschen wrote:
>>> I did the same here and I've added the block count which shows how much
>>> blocks has been wasted by being a sparse file:
>>>
>>>  188 -rwxr-xr-x    1 corinna  root       191765 Jun  6 09:55 ./ftp/ftp.exe
>>> Sparse bit 200
>>>  497 -rwxr-xr-x    1 corinna  root       508186 Jun  6 09:55
>>./ftpd/ftpd.exe
>>> Sparse bit 200
>>>  748 -rwxr-xr-x    1 corinna  root       765264 Jun  6 09:55
>>./inetd/inetd.exe
>>> Sparse bit 200
>>...
>>> So there's no waste of blocks at all.
>>
>>In my testing of sparse files, I found that the extra disc usage did not
>>appear to be reported in Explorer File Properties "Size on Disc", but was
>>visible in the overall Disc Properties, by looking at the change in free
>>space.
>
>I extended Pierre's program to report on disk space used versus size on disk.
>AFAICT, the files produced by ld are actually consuming less space on disk
>than reported by ls, thanks to their sparseness.

Nevermind.  I was testing in a directory where I'd set the compression bit on.

So much for my trustworthiness...

cgf

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