From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261590AbVGYCoJ (ORCPT ); Sun, 24 Jul 2005 22:44:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261599AbVGYCoJ (ORCPT ); Sun, 24 Jul 2005 22:44:09 -0400 Received: from femail.waymark.net ([206.176.148.84]:52705 "EHLO femail.waymark.net") by vger.kernel.org with ESMTP id S261590AbVGYCoI convert rfc822-to-8bit (ORCPT ); Sun, 24 Jul 2005 22:44:08 -0400 Date: 25 Jul 2005 02:34:58 GMT From: Kenneth Parrish Subject: Re: [patch 2.6.13-rc3a] i386: inline restore_fpu To: linux-kernel@vger.kernel.org Message-ID: <603f59.f8ac5d@family-bbs.org> Organization: FamilyNet HQ X-Mailer: BBBS/NT v4.01 Flag-5 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 -=> Kenneth Parrish wrote to All <=- KP> 2.6.13-rc3-git5 lags -git4 on nbench's bitfield test, a part of its KP> memory index, eg typical runs KP> -git5 KP> BITFIELD : 1.1589e+07 : 1.99 : 0.42 KP> -git4 KP> BITFIELD : 2.1892e+07 : 3.76 : 0.78 KP> lmbench has slower context switch numbers for -git5. i've been experimentally adding -funswitch-loops and -fpeel loops to the default -march=i586 in the ../arch/i386/Makefile cflags-$(CONFIG_M586) += -march=i586 -funswitch-loops -fpeel-loops based on some tests with gcc 3.4.3,4 and the cyrix mii cpu, but with v2.6.13-rc3-git5 carelessly put these flags on the next, cflags-$(CONFIG_M586TSC) line, and so they would not have been used. i shall retest after recompiling to confirm. [..] yeah, a couple nbench runs show similar overall results as -git4