From: Andi Kleen <andi@firstfloor.org>
To: Michal Hocko <mhocko@suse.cz>
Cc: Andi Kleen <andi@firstfloor.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH] Expose sysctls for enabling slab/file_cache interleaving
Date: Tue, 19 Nov 2013 19:42:00 +0100 [thread overview]
Message-ID: <20131119184200.GD29695@two.firstfloor.org> (raw)
In-Reply-To: <20131119104203.GB18872@dhcp22.suse.cz>
On Tue, Nov 19, 2013 at 11:42:03AM +0100, Michal Hocko wrote:
> On Mon 18-11-13 16:50:22, Andi Kleen wrote:
> [...]
> > diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
> > index cc1b01c..10966f5 100644
> > --- a/include/linux/cpuset.h
> > +++ b/include/linux/cpuset.h
> > @@ -72,12 +72,14 @@ extern int cpuset_slab_spread_node(void);
> >
> > static inline int cpuset_do_page_mem_spread(void)
> > {
> > - return current->flags & PF_SPREAD_PAGE;
> > + return (current->flags & PF_SPREAD_PAGE) ||
> > + sysctl_spread_file_cache;
> > }
>
> But this might break applications that explicitly opt out from
> spreading.
What do you mean? There's no such setting at the moment.
They can only enable it.
-Andi
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next prev parent reply other threads:[~2013-11-19 18:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-19 0:50 Andi Kleen
2013-11-19 10:42 ` Michal Hocko
2013-11-19 18:42 ` Andi Kleen [this message]
2013-11-19 19:11 ` Michal Hocko
2013-11-19 20:13 ` Andi Kleen
2013-11-19 21:21 ` Michal Hocko
2013-11-19 21:49 ` Andi Kleen
2013-11-20 5:49 ` KOSAKI Motohiro
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