From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx149.postini.com [74.125.245.149]) by kanga.kvack.org (Postfix) with SMTP id 7B21A6B0006 for ; Mon, 8 Apr 2013 12:33:19 -0400 (EDT) MIME-Version: 1.0 Message-ID: Date: Mon, 8 Apr 2013 09:32:38 -0700 (PDT) From: Dan Magenheimer Subject: zsmalloc defrag (Was: [PATCH] mm: remove compressed copy from zram in-memory) References: <<1365400862-9041-1-git-send-email-minchan@kernel.org>> In-Reply-To: <<1365400862-9041-1-git-send-email-minchan@kernel.org>> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org List-ID: To: Minchan Kim , Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Hugh Dickins , Seth Jennings , Nitin Gupta , Konrad Rzeszutek Wilk , Shaohua Li , Dan Magenheimer , Bob Liu , Shuah Khan > From: Minchan Kim [mailto:minchan@kernel.org] > Sent: Monday, April 08, 2013 12:01 AM > Subject: [PATCH] mm: remove compressed copy from zram in-memory (patch removed) > Fragment ratio is almost same but memory consumption and compile time > is better. I am working to add defragment function of zsmalloc. Hi Minchan -- I would be very interested in your design thoughts on how you plan to add defragmentation for zsmalloc. In particular, I am wondering if your design will also handle the requirements for zcache (especially for cleancache pages) and perhaps also for ramster. In https://lkml.org/lkml/2013/3/27/501 I suggested it would be good to work together on a common design, but you didn't reply. Are you thinking that zsmalloc improvements should focus only on zram, in which case we may -- and possibly should -- end up with a different allocator for frontswap-based/cleancache-based compression in zcache (and possibly zswap)? I'm just trying to determine if I should proceed separately with my design (with Bob Liu, who expressed interest) or if it would be beneficial to work together. Thanks, Dan -- 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