Re: OT?: simple question 2

[Eric Sandeen <sandeen@sgi.com>]

On Thu, 2003-08-07 at 15:33, Jeffrey E. Hundstad wrote:
> I've got a program that takes a video stream and writes it to disk.  
> What can I do to force it to avoid the buffer cache.  The cache is only 
> going to hurt my performance.

You probably want O_DIRECT

> Is there a write option or a ioctl that hints to how your going to use a 
> file for XFS?  Where do I find documentaion on these features.

>From a recent xfsprogs, see man xfsctl(3)

-Eric

-- 
Eric Sandeen      [C]XFS for Linux   http://oss.sgi.com/projects/xfs
sandeen@sgi.com   SGI, Inc.          651-683-3102