From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752148AbdDHIql (ORCPT ); Sat, 8 Apr 2017 04:46:41 -0400 Received: from mga14.intel.com ([192.55.52.115]:13140 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751569AbdDHIqd (ORCPT ); Sat, 8 Apr 2017 04:46:33 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.37,171,1488873600"; d="scan'208";a="843550992" Subject: Re: [PATCH v2 2/5] perf/x86/intel: Record branch type To: Andi Kleen , Peter Zijlstra Cc: acme@kernel.org, jolsa@kernel.org, mingo@redhat.com, alexander.shishkin@linux.intel.com, Linux-kernel@vger.kernel.org, kan.liang@intel.com, yao.jin@intel.com, linuxppc-dev@lists.ozlabs.org References: <1491562066-7472-1-git-send-email-yao.jin@linux.intel.com> <1491562066-7472-3-git-send-email-yao.jin@linux.intel.com> <20170407152031.k2auigfkj7ek4suo@hirez.programming.kicks-ass.net> <20170407164834.GA4021@tassilo.jf.intel.com> <20170407172024.r66fkp4xkux5blxi@hirez.programming.kicks-ass.net> <20170407175006.GB4021@tassilo.jf.intel.com> From: "Jin, Yao" Message-ID: Date: Sat, 8 Apr 2017 16:46:29 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.0 MIME-Version: 1.0 In-Reply-To: <20170407175006.GB4021@tassilo.jf.intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Without this patch, we don't know if it's conditional or something else. > And the kernel already knows this for its filtering, so it can as well > report it. > > Right the CROSS_* and forward backward information could be computed > later. > > -Andi > > OK, I will move CROSS_* and JCC forward/backward computing to user-space though it makes user-space code to be complicated. Thanks Jin Yao