From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dkim2.fusionio.com ([66.114.96.54]:51607 "EHLO dkim2.fusionio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933104Ab3GKObZ convert rfc822-to-8bit (ORCPT ); Thu, 11 Jul 2013 10:31:25 -0400 Received: from mx1.fusionio.com (unknown [10.101.1.160]) by dkim2.fusionio.com (Postfix) with ESMTP id 3B2B19A0693 for ; Thu, 11 Jul 2013 08:31:25 -0600 (MDT) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 From: Chris Mason To: Miao Xie , References: <1373520339-13870-1-git-send-email-miaox@cn.fujitsu.com> <1373520339-13870-2-git-send-email-miaox@cn.fujitsu.com> In-Reply-To: <1373520339-13870-2-git-send-email-miaox@cn.fujitsu.com> Message-ID: <20130711143122.12026.78808@localhost.localdomain> Subject: Re: [PATCH 2/5] Btrfs: add branch prediction hints in the read page end IO function Date: Thu, 11 Jul 2013 10:31:22 -0400 Sender: linux-btrfs-owner@vger.kernel.org List-ID: Do you have benchmark numbers for how much these help? I hesitate to bring in the likely/unlikely unless we can see it on the benchmarks. (The patch does look fine though) -chris