From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754780Ab3AaNMe (ORCPT ); Thu, 31 Jan 2013 08:12:34 -0500 Received: from mail-ee0-f50.google.com ([74.125.83.50]:35316 "EHLO mail-ee0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753547Ab3AaNMc (ORCPT ); Thu, 31 Jan 2013 08:12:32 -0500 Date: Thu, 31 Jan 2013 14:12:28 +0100 From: Ingo Molnar To: Yuanhan Liu Cc: Michel Lespinasse , linux-kernel@vger.kernel.org, David Howells Subject: Re: [PATCH] rwsem-spinlock: let rwsem write lock stealable Message-ID: <20130131131228.GB6627@gmail.com> References: <1359537244-20588-1-git-send-email-yuanhan.liu@linux.intel.com> <20130131124004.GA12678@yliu-dev.sh.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20130131124004.GA12678@yliu-dev.sh.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Yuanhan Liu wrote: > BTW, mind to tell a nice test case for mmap_sem? this one was write-hitting on mmap_sem pretty hard, last I checked: http://people.redhat.com/mingo/threaded-mmap-stresstest/ Thanks, Ingo