Re: [rfc] lockless pagecache

Christoph Lameter
2005-06-27T17:49:24Z

On Mon, 27 Jun 2005, Andrew Morton wrote:

> Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> >
> > First I'll put up some numbers to get you interested - of a 64-way Altix
> > with 64 processes each read-faulting in their own 512MB part of a 32GB
> > file that is preloaded in pagecache (with the proper NUMA memory
> > allocation).
>
> I bet you can get a 5x to 10x reduction in ->tree_lock traffic by doing
> 16-page faultahead.

Could be working into the prefault patch.... Good idea.