Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261690AbUCPNy4 (ORCPT ); Tue, 16 Mar 2004 08:54:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261750AbUCPNyz (ORCPT ); Tue, 16 Mar 2004 08:54:55 -0500 Received: from ppp-217-133-42-200.cust-adsl.tiscali.it ([217.133.42.200]:56078 "EHLO dualathlon.random") by vger.kernel.org with ESMTP id S261690AbUCPNtg (ORCPT ); Tue, 16 Mar 2004 08:49:36 -0500 Date: Tue, 16 Mar 2004 14:50:17 +0100 From: Andrea Arcangeli To: Marcelo Tosatti Cc: Ingo Molnar , Linus Torvalds , Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: [lockup] Re: objrmap-core-1 (rmap removal for file mappings to avoid 4:4 in <=16G machines) Message-ID: <20040316135017.GX30940@dualathlon.random> References: <20040315220022.GK30940@dualathlon.random> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i X-GPG-Key: 1024D/68B9CB43 13D9 8355 295F 4823 7C49 C012 DFA1 686E 68B9 CB43 X-PGP-Key: 1024R/CB4660B9 CC A0 71 81 F4 A0 63 AC C0 4B 81 1D 8C 15 C8 E5 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 738 Lines: 17 On Tue, Mar 16, 2004 at 04:39:50AM -0300, Marcelo Tosatti wrote: > What are the problems you are facing ? Yes, I could read the previous > posts, etc. but a nice resume is always good, for me, for others, and for > you :) the primary problem of rmap is the memory consumption and the slowdown during things like parallel compiles in 32-ways. on 32bit and 64bit archs. > Yes, 4:4 tlb flushing is, hum, not very cool. and it can't help avoiding to waste several gigs of ram on the 64bit ;). - 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/