From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f170.google.com (mail-pd0-f170.google.com [209.85.192.170]) by kanga.kvack.org (Postfix) with ESMTP id 097616B00A4 for ; Thu, 17 Oct 2013 14:03:00 -0400 (EDT) Received: by mail-pd0-f170.google.com with SMTP id x10so3163769pdj.15 for ; Thu, 17 Oct 2013 11:03:00 -0700 (PDT) Date: Thu, 17 Oct 2013 18:02:57 +0000 From: Christoph Lameter Subject: Re: [PATCH v2 00/15] slab: overload struct slab over struct page to reduce memory usage In-Reply-To: <525F8FA4.3000702@iki.fi> Message-ID: <00000141c795afcd-7cd3594e-91c4-404a-9f99-48c3b7d19d6f-000000@email.amazonses.com> References: <1381913052-23875-1-git-send-email-iamjoonsoo.kim@lge.com> <20131016133457.60fa71f893cd2962d8ec6ff3@linux-foundation.org> <525F8FA4.3000702@iki.fi> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Pekka Enberg Cc: Andrew Morton , Joonsoo Kim , Pekka Enberg , Joonsoo Kim , David Rientjes , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Wanpeng Li On Thu, 17 Oct 2013, Pekka Enberg wrote: > On 10/16/13 10:34 PM, Andrew Morton wrote: > > On Wed, 16 Oct 2013 17:43:57 +0900 Joonsoo Kim > > wrote: > > > > > There is two main topics in this patchset. One is to reduce memory usage > > > and the other is to change a management method of free objects of a slab. > > > > > > The SLAB allocate a struct slab for each slab. The size of this structure > > > except bufctl array is 40 bytes on 64 bits machine. We can reduce memory > > > waste and cache footprint if we overload struct slab over struct page. > > Seems a good idea from a quick look. > > Indeed. > > Christoph, I'd like to pick this up and queue for linux-next. Any > objections or comments to the patches? I think this is fine. I have looked through the whole set repeatedly and like the overall approach but I have I have only commented in detail on a the beginning part of it. There was always something coming up. Sigh. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org