From: Christoph Lameter <cl@linux.com>
To: Michal Hocko <mhocko@suse.cz>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
linux-mm@kvack.org, kamezawa.hiroyu@jp.fujitsu.com,
akpm@linux-foundation.org
Subject: Re: [PATCH] hugeltb: Mark hugelb_max_hstate __read_mostly
Date: Fri, 15 Jun 2012 09:50:00 -0500 (CDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1206150948120.20541@router.home> (raw)
In-Reply-To: <20120615143342.GE8100@tiehlicka.suse.cz>
On Fri, 15 Jun 2012, Michal Hocko wrote:
> > Thats all? There is no performance gain from this change?
>
> Is that required in order to put data in the read mostly section?
I thought so. The read_mostly section is specially designed for data that
causes excessive cacheline bounces and has to be grouped with rarely
accessed other data. That was at least the intend when we created it.
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next prev parent reply other threads:[~2012-06-15 14:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-14 13:56 Aneesh Kumar K.V
2012-06-14 14:12 ` Michal Hocko
2012-06-14 20:43 ` Christoph Lameter
2012-06-15 6:08 ` Aneesh Kumar K.V
2012-06-15 13:57 ` Christoph Lameter
2012-06-15 14:33 ` Michal Hocko
2012-06-15 14:50 ` Christoph Lameter [this message]
2012-06-22 22:06 ` Andrew Morton
2012-06-15 6:10 ` Aneesh Kumar K.V
2012-06-22 22:03 ` Andrew Morton
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