Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751384AbWCJE5Q (ORCPT ); Thu, 9 Mar 2006 23:57:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751383AbWCJE5P (ORCPT ); Thu, 9 Mar 2006 23:57:15 -0500 Received: from smtp102.mail.mud.yahoo.com ([209.191.85.212]:49550 "HELO smtp102.mail.mud.yahoo.com") by vger.kernel.org with SMTP id S1751384AbWCJE5P (ORCPT ); Thu, 9 Mar 2006 23:57:15 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:Message-ID:Date:From:User-Agent:X-Accept-Language:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=f85DNnkCadIVpI7wP0eKzfYcJnFzykr8zAp+wrsL/LWkVFv9+jPm8QDJh+lYva/I+sLDFIFHWQYNW+uWmTSuejb/nfqQfv8yTapRzgb4TbFp1NbGnPO2wrV7fiyEOmmU/XdUQ7E5y9owwlI1X7gehYCRp+UW/DUBFkfj/Eib+wo= ; Message-ID: <44110727.802@yahoo.com.au> Date: Fri, 10 Mar 2006 15:57:11 +1100 From: Nick Piggin User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20051007 Debian/1.7.12-1 X-Accept-Language: en MIME-Version: 1.0 To: Magnus Damm CC: Linux Kernel , linux-mm@kvack.org Subject: Re: [PATCH 03/03] Unmapped: Add guarantee code References: <20060310034412.8340.90939.sendpatchset@cherry.local> <20060310034429.8340.61997.sendpatchset@cherry.local> In-Reply-To: <20060310034429.8340.61997.sendpatchset@cherry.local> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 950 Lines: 26 Magnus Damm wrote: > Implement per-LRU guarantee through sysctl. > > This patch introduces the two new sysctl files "node_mapped_guar" and > "node_unmapped_guar". Each file contains one percentage per node and tells > the system how many percentage of all pages that should be kept in RAM as > unmapped or mapped pages. > The whole Linux VM philosophy until now has been to get away from stuff like this. If your app is really that specialised then maybe it can use mlock. If not, maybe the VM is currently broken. You do have a real-world workload that is significantly improved by this, right? -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/