Hi Jan,

Thanks.  I like when people can separate their opinions from facts.  

I'm gonna try out linux some more.  I already have a dual boot system.  I
just have to port some of the fixes I've made to OSG so that I've got the
same baseline.  One of the things that really degraded performance was
DOFTransforms.  I'll port that change and see what I get.

I have a commercial image generator that does paging very well on windows,
so I know it is possible.  However, I did notice it uses a real-time
extension, and many many more threads.

Watch out linux; I'm about to give you a thorough examination.


Zach

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jan Ciger
Sent: Monday, March 12, 2007 13:51
To: osg users
Subject: Re: [osg-users] Linux vs. Windows file system

On Monday 12 March 2007, Zach Deedler wrote:
> Hello osg-soldiers,
> 
> I'm not trying to wage an OS war here.  I know that is what you 
> usually get with a subject line like this.  I'd just like to know 
> others experiences with file system performance on Linux vs. Windows 
> for OSG, and OSG paging in particular.
> 

I didn't do any rigorous benchmarks on I/O throughput, however Linux seems
to be a bit faster due to better I/O scheduling and smarter caching. Also,
Linux usually doesn't block the rest of the system while doing I/O as
Windows likes to do when under heavy load. 

However, as I said at the start - these are my impressions not benchmarks.
If you want to be sure, set up either a dual boot or one of the live distros
which boot from the CD, put your data and application on the harddrive and
benchmark it. That is the only way how to be sure. 

Jan

-- 

Jan Ciger
GPG public key: http://www.keyserver.net/


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