Re: [RFC][PATCH 0/1] Node-based reclaim/migration

KAMEZAWA Hiroyuki
2006-12-01T02:59:07Z

On Thu, 30 Nov 2006 18:43:01 -0800 (PST)
Christoph Lameter <clameter@sgi.com> wrote:

> On Fri, 1 Dec 2006, KAMEZAWA Hiroyuki wrote:
>
> > This is a patch. not tested at all, just idea level.
> > (seems a period of taking rcu_read_lock() is a bit long..)
>
> This is what we have been trying to avoid. Using rcu means that the
> anon_vma cacheline gets cold and this will badly influence benchmarks.
>
Ah, okay. rcu's batch-freeing makes cacheline cold. sorry.

-Kame