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Date: Wed, 1 Aug 2007 18:26:10 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
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Subject: Re: Request for running a test application
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On Aug  1 08:37, Brian Dessent wrote:
> Corinna Vinschen wrote:
> 
> > It *is* interesting, thank you.
> > 
> > Anybody else running a different ramdisk?
> 
> Yes.  I use Farstone Virtual Hard Drive Pro (a very stupid product name
> if you ask me, but there you go) and the results are below.  I am
> guessing the bulk of the difference is due to this being formatted NTFS
> not FAT.  Frankly having a FAT formatted ramdisk seems like a big waste
> of memory as with NTFS you can enable compression on the whole volume,
> though oddly even when you do that the VOLUME_IS_COMPRESSED flag is
> still FALSE.
> 
> Device Type        : 7
> Characteristics    : 120

Hmm, that's slightly disappointing.  Windows knows a device type
FILE_DEVICE_VIRTUAL_DISK, which I'd expected is used for ram disks.
But all local non-CD file systems seem to use FILE_DEVICE_DISK.
Well, that's obviously easier for testing, but still...

Can you change the source and see what you get when the native NT
filename is only \??\X: instead of \??\X:\ (no trailing backslash)?


Thanks,
Corinna


-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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