Re: [rfc] lockless pagecache

[Nick Piggin]

Andrew Morton wrote:
> Nick Piggin <nickpiggin@xxxxxxxxxxxx> wrote:
>
> > Also, the memory usage regression cases that fault ahead brings makes it
> > a bit contentious.
>
>
> faultahead consumes no more memory: if the page is present then point a pte
> at it.  It'll make reclaim work a bit harder in some situations.

Oh OK we'll call that faultahead and Christoph's thing prefault then.

I suspect it may still be a net loss for those that are running into
tree_lock contention, but we'll see.

--
SUSE Labs, Novell Inc.

Send instant messages to your online friends http://au.messenger.yahoo.com 
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/