From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965098AbVINJRv (ORCPT ); Wed, 14 Sep 2005 05:17:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965102AbVINJRv (ORCPT ); Wed, 14 Sep 2005 05:17:51 -0400 Received: from dbl.q-ag.de ([213.172.117.3]:62668 "EHLO dbl.q-ag.de") by vger.kernel.org with ESMTP id S965098AbVINJRv (ORCPT ); Wed, 14 Sep 2005 05:17:51 -0400 Message-ID: <4327EA6B.6090102@colorfullife.com> Date: Wed, 14 Sep 2005 11:16:27 +0200 From: Manfred Spraul User-Agent: Mozilla/5.0 (X11; U; Linux i686; fr-FR; rv:1.7.10) Gecko/20050909 Fedora/1.7.10-1.5.2 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Andi Kleen CC: David Chinner , Bharata B Rao , "Theodore Ts'o" , Dipankar Sarma , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: VM balancing issues on 2.6.13: dentry cache not getting shrunk enough References: <20050911105709.GA16369@thunk.org> <20050913084752.GC4474@in.ibm.com> <20050913215932.GA1654338@melbourne.sgi.com> <200509141101.16781.ak@suse.de> In-Reply-To: <200509141101.16781.ak@suse.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andi Kleen wrote: >The slab datastructures are not completely suited for this right now, >but it could be done by using one more of the list_heads in struct page >for slab backing pages. > > > I agree, I even started prototyping something a year ago, but ran out of time. One tricky point are directory dentries: As far as I see, they are pinned and unfreeable if a (freeable) directory entry is in the cache. -- Manfred From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4327EA6B.6090102@colorfullife.com> Date: Wed, 14 Sep 2005 11:16:27 +0200 From: Manfred Spraul MIME-Version: 1.0 Subject: Re: VM balancing issues on 2.6.13: dentry cache not getting shrunk enough References: <20050911105709.GA16369@thunk.org> <20050913084752.GC4474@in.ibm.com> <20050913215932.GA1654338@melbourne.sgi.com> <200509141101.16781.ak@suse.de> In-Reply-To: <200509141101.16781.ak@suse.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Andi Kleen Cc: David Chinner , Bharata B Rao , Theodore Ts'o , Dipankar Sarma , linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: Andi Kleen wrote: >The slab datastructures are not completely suited for this right now, >but it could be done by using one more of the list_heads in struct page >for slab backing pages. > > > I agree, I even started prototyping something a year ago, but ran out of time. One tricky point are directory dentries: As far as I see, they are pinned and unfreeable if a (freeable) directory entry is in the cache. -- Manfred -- 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