Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964827AbWEJGWQ (ORCPT ); Wed, 10 May 2006 02:22:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S964831AbWEJGWQ (ORCPT ); Wed, 10 May 2006 02:22:16 -0400 Received: from dsl027-180-168.sfo1.dsl.speakeasy.net ([216.27.180.168]:37354 "EHLO sunset.davemloft.net") by vger.kernel.org with ESMTP id S964827AbWEJGWP (ORCPT ); Wed, 10 May 2006 02:22:15 -0400 Date: Tue, 09 May 2006 23:22:15 -0700 (PDT) Message-Id: <20060509.232215.69573210.davem@davemloft.net> To: olof@lixom.net Cc: paulus@samba.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linuxppc-dev@ozlabs.org Subject: Re: [RFC/PATCH] Make powerpc64 use __thread for per-cpu variables From: "David S. Miller" In-Reply-To: <20060510051649.GD1794@lixom.net> References: <17505.26159.807484.477212@cargo.ozlabs.ibm.com> <20060510051649.GD1794@lixom.net> X-Mailer: Mew version 4.2.53 on Emacs 21.4 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 675 Lines: 15 From: Olof Johansson Date: Wed, 10 May 2006 00:16:50 -0500 > It would be interesting to see benchmarks of how much it improves > things. I guess it doesn't really get interesting until after the paca > gets removed though, due to the added mfsprg's. When I moved the per-cpu base into a fixed register on sparc64, it definitely showed up on the micro-benchmarks because this shrunk the .text a lot in that case. - 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/