[Pvfs2-developers] VFS page cache

[Sam Lang]

Hi Dharani,

PVFS purposefully avoids using the page cache, because it prevents a  
coherent view of the file from all clients.  Recent versions of PVFS  
support the immutable attribute on files (see the chattr man page).   
If you enable this attribute on your file, it will be cached in the  
VFS page cache.

-sam

On Feb 17, 2008, at 1:16 AM, Dharani Sankar Vijayakumar wrote:

> Hi,
> Is there a chance of the IO requests using the page cache when  
> accessed via the VFS interface. I tried a few simple experiments to  
> find no effect of page cache! Can someone suggest on how to enable  
> the page cache at the VFS layer.
>
> Thanks,
> Dharani
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