[vbox-dev] Plans

Venefax venefax at gmail.com
Tue Jun 24 08:57:21 PDT 2008

Are there any plans to have support for more than 2GB or RAM ver windows VM?
And 64 Bits? That would be excellent before we can use this technology on a


From: vbox-dev-bounces at virtualbox.org
[mailto:vbox-dev-bounces at virtualbox.org] On Behalf Of Huihong Luo
Sent: Tuesday, June 24, 2008 11:50 AM
To: VirtualBox developer's list; Klaus Espenlaub
Subject: Re: [vbox-dev] windows shared folders source code?


Hi Klaus,


Thanks. It's great that you will put out the windows Shared Folders src


As for the performance, I didn't do thorough testing, but you can get an
idea by doing this simple test:


share the whole host system drive, usually C:, then run notepad.exe


then launch map the shared drive in windows XP guest inside virtualbox, say,
you map Z: to be pointing to the host c: drive. then launch notepad.exe by
typing z:\windows\system32\notepad.exe


You will note that it's much slower compared to local notepad.





--- On Tue, 6/24/08, Klaus Espenlaub <Klaus.Espenlaub at Sun.COM> wrote:

From: Klaus Espenlaub <Klaus.Espenlaub at Sun.COM>
Subject: Re: [vbox-dev] windows shared folders source code?
To: huisinro at yahoo.com, "VirtualBox developer's list"
<vbox-dev at virtualbox.org>
Date: Tuesday, June 24, 2008, 6:31 AM

Huihong Luo wrote:
> I assume you used the nulmrx sample from MS DDK. Sample code is supposed 
> to be released without license issues. Is it not right? There are many 
> open source file systems modified from MS samples, e.g., the EXT2 file 
> system on sf.net.
To be honest I don't know. I'm not the one who wrote that code.
But I've asked them and learned that this issue is mostly solved. We 
need to update a few things (e.g. using the WDK 6001) then we can make 
the code part of VBox OSE. So I'm asking for a little patience since 
such cleanup work isn't really high priority. I'll let you know when 
we're ready.
> Over last couple of weeks, I implemented a shared folder driver, which I 
> think is much better performed than the current one. However, there are 
> many tedious stuff, if I can look at your current impl, it would really 
> help me to finish it. Any chance I can get a copy of your code for 
> internal use?
See above. Hopefully done in about a week or so.
> If there is no licensing issues, I'd like to check in my code to the
> edition, so there will be some source code for the windows shared 
> folders driver.
For contributions there's a wiki page describing the process: 
Contributions are always welcome if they actually improve things. What 
tests did you run on your implementation? Getting a filesystem 
bullet-proof is hard work...


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