Re: [rfc] lockless pagecache

[Christoph Lameter]

On Mon, 27 Jun 2005, Andrew Morton wrote:

> Nick Piggin <nickpiggin@xxxxxxxxxxxx> 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.

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