From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tor Arntsen Subject: Re: [PATCH] git gc: Speed it up by 18% via faster hash comparisons Date: Thu, 28 Apr 2011 14:16:20 +0200 Message-ID: References: <20110427225114.GA16765@elte.hu> <7voc3r5kzn.fsf@alter.siamese.dyndns.org> <20110428062717.GA952@elte.hu> <20110428093703.GB15349@elte.hu> <4DB93D16.4000603@cs.helsinki.fi> <4DB941CD.2050403@cs.helsinki.fi> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Cc: kusmabite@gmail.com, Ingo Molnar , Junio C Hamano , git@vger.kernel.org, "H. Peter Anvin" , Thomas Gleixner , Peter Zijlstra , Arnaldo Carvalho de Melo , =?ISO-8859-1?Q?Fr=E9d=E9ric_Weisbecker?= To: Pekka Enberg X-From: git-owner@vger.kernel.org Thu Apr 28 14:16:29 2011 Return-path: Envelope-to: gcvg-git-2@lo.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1QFQ8y-000539-4u for gcvg-git-2@lo.gmane.org; Thu, 28 Apr 2011 14:16:28 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753879Ab1D1MQX (ORCPT ); Thu, 28 Apr 2011 08:16:23 -0400 Received: from mail-bw0-f46.google.com ([209.85.214.46]:46793 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751473Ab1D1MQV (ORCPT ); Thu, 28 Apr 2011 08:16:21 -0400 Received: by bwz15 with SMTP id 15so2233075bwz.19 for ; Thu, 28 Apr 2011 05:16:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; bh=d3h5ckeSuS9pPp2G4moSp3e9aS+oG1/2fsxqDlwc+Bk=; b=k+Ok6PoHUgSiNJPtTppiJmzLG2yjcYag5Q6rN3CsPJ0s/7CMD4wWleb1HOZnaJP8nn xD3lSE9XFlDZH6MYYMOdQf8SxTHx/UEfGB3+/cMYH5dGxwvO5E87t7np25hL2aNOJOkE tI9POep0ONfvOolyVBgl9WxMv7bA59Y4IPvnk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=I/ybkp8vCeSa8I+SQHwtjYNa8G/ma4LWjh2s/w5PMfwrqfbL/7eXQu5XRtdr33bBmy PiNbRNju//z9DvkkoseDs3Hjdkf75qvy0Ty+oqrRZlnkmlP/2t5h+/z8aF8F1cP4pgbA yVlZa+8BmbGzH2YIXg+DRnCHbIo1gOMPYd6G8= Received: by 10.204.83.82 with SMTP id e18mr455463bkl.71.1303992980404; Thu, 28 Apr 2011 05:16:20 -0700 (PDT) Received: by 10.204.51.133 with HTTP; Thu, 28 Apr 2011 05:16:20 -0700 (PDT) In-Reply-To: <4DB941CD.2050403@cs.helsinki.fi> X-Google-Sender-Auth: h6--SBSHrZ01BUxAPs-I7LTxcTM Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: On Thu, Apr 28, 2011 at 12:30, Pekka Enberg wrote: > Hi, > > On 4/28/11 1:19 PM, Erik Faye-Lund wrote: [alignment issues] > > Yes, ARM is a problem and I didn't try to claim otherwise. However, it's not > "impossible to fix" as you say with memalign(). MIPS (e.g. SGI machines) also bus-errors on non-aligned data. -Tor