From: Andrew Morton <akpm@linux-foundation.org>
To: Chanho Min <chanho.min@lge.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Hugh Dickins <hughd@google.com>, Michal Hocko <mhocko@suse.cz>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
HyoJun Im <hyojun.im@lge.com>, Gunho Lee <gunho.lee@lge.com>,
Wonhong Kwon <wonhong.kwon@lge.com>
Subject: Re: [PATCH] mm: add parameter to disable faultaround
Date: Mon, 24 Nov 2014 23:05:02 -0800 [thread overview]
Message-ID: <20141124230502.30f9b6f0.akpm@linux-foundation.org> (raw)
In-Reply-To: <1416898318-17409-1-git-send-email-chanho.min@lge.com>
On Tue, 25 Nov 2014 15:51:58 +0900 Chanho Min <chanho.min@lge.com> wrote:
> The faultaround improves the file read performance, whereas pages which
> can be dropped by drop_caches are reduced. On some systems, The amount of
> freeable pages under memory pressure is more important than read
> performance.
The faultaround pages *are* freeable. Perhaps you meant "free" here.
Please tell us a great deal about the problem which you are trying to
solve. What sort of system, what sort of workload, what is bad about
the behaviour which you are observing, etc.
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next prev parent reply other threads:[~2014-11-25 7:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-25 6:51 [PATCH] mm: add parameter to disable faultaround Chanho Min
2014-11-25 7:05 ` Andrew Morton [this message]
2014-11-25 11:19 ` Chanho Min
2014-11-25 11:48 ` Kirill A. Shutemov
[not found] ` <547465d2.6561420a.04ed.0514SMTPIN_ADDED_BROKEN@mx.google.com>
2014-11-25 11:40 ` Andrew Morton
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