From: Johannes Weiner <hannes@cmpxchg.org>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH] radix-tree: replace preallocated node array with linked list
Date: Sun, 17 May 2015 08:38:39 -0400 [thread overview]
Message-ID: <20150517123839.GA5575@cmpxchg.org> (raw)
In-Reply-To: <1431531414-173802-1-git-send-email-kirill.shutemov@linux.intel.com>
On Wed, May 13, 2015 at 06:36:54PM +0300, Kirill A. Shutemov wrote:
> Currently we use per-cpu array to hold pointers to preallocated nodes.
> Let's replace it with linked list. On x86_64 it saves 256 bytes in
> per-cpu ELF section which may translate into freeing up 2MB of memory
> for NR_CPUS==8192.
>
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
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prev parent reply other threads:[~2015-05-17 12:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-13 15:36 Kirill A. Shutemov
2015-05-13 21:23 ` Andrew Morton
2015-05-17 12:38 ` Johannes Weiner [this message]
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