From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with SMTP id 2B12B6B0055 for ; Thu, 12 Mar 2009 08:07:52 -0400 (EDT) Date: Thu, 12 Mar 2009 20:06:49 +0800 From: Wu Fengguang Subject: Re: Memory usage per memory zone Message-ID: <20090312120649.GA20854@localhost> References: <20090311122611.GA8804@localhost> <20090312075952.GA19331@localhost> <20090312081113.GA19506@localhost> <20090312103847.GA20210@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Sender: owner-linux-mm@kvack.org To: jack marrow Cc: LKML , "linux-mm@kvack.org" List-ID: On Thu, Mar 12, 2009 at 01:48:50PM +0200, jack marrow wrote: > >> Sure, but something is unreclaimable... Maybe some process is taking a > >> lot of shared memory(shm)? What's the output of `lsof`? > > > > I can't paste that, but I expect oracle is using it. > > Maybe this is helpful: > > # ipcs |grep oracle > 0x00000000 2293770 oracle 640 4194304 22 > 0x00000000 2326539 oracle 640 536870912 22 > 0x880f3334 2359308 oracle 640 266338304 22 > 0x0f9b5efc 1933312 oracle 640 44 Up to 800M shm... http://lwn.net/Articles/286485/ http://feedblog.org/2009/01/25/splitlru-patch-in-kernel-2628-must-have-for-mysql-and-innodb/ which reads: If youa??re running MySQL with InnoDB and an in-memory buffer pool, and having paging issues, you probably should upgrade to 2.6.28 ASAP. Thanks, Fengguang -- 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