Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261465AbVCCF1a (ORCPT ); Thu, 3 Mar 2005 00:27:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261460AbVCCFYK (ORCPT ); Thu, 3 Mar 2005 00:24:10 -0500 Received: from omx3-ext.sgi.com ([192.48.171.20]:4008 "EHLO omx3.sgi.com") by vger.kernel.org with ESMTP id S261465AbVCCFTr (ORCPT ); Thu, 3 Mar 2005 00:19:47 -0500 Date: Wed, 2 Mar 2005 21:19:31 -0800 (PST) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: Paul Mackerras cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org, benh@kernel.crashing.org, anton@samba.org Subject: Re: Page fault scalability patch V18: Drop first acquisition of ptl In-Reply-To: <16934.39386.686708.768378@cargo.ozlabs.ibm.com> Message-ID: References: <20050302174507.7991af94.akpm@osdl.org> <20050302185508.4cd2f618.akpm@osdl.org> <20050302201425.2b994195.akpm@osdl.org> <16934.39386.686708.768378@cargo.ozlabs.ibm.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 641 Lines: 14 On Thu, 3 Mar 2005, Paul Mackerras wrote: > More generally, I would be interested to know what sorts of > applications or benchmarks show scalability problems on large machines > due to contention on mm->page_table_lock. Number crunching apps that use vast amounts of memory through MPI or large databases etc. They stall for a long time during their initialization phase without these patches. - 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/