Re: [rfc] lockless pagecache

Lincoln Dale
2005-06-27T08:56:59Z

Nick Piggin wrote:
[..]

> However I think for Oracle and others that use shared memory like
> this, they are probably not doing linear access, so that would be a
> net loss. I'm not completely sure (I don't have access to real loads
> at the moment), but I would have thought those guys would have looked
> into fault ahead if it were a possibility.

i thought those guys used O_DIRECT - in which case, wouldn't the page
cache not be used?

cheers,

lincoln.