From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751702AbbJaFck (ORCPT ); Sat, 31 Oct 2015 01:32:40 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:55281 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751016AbbJaFcj (ORCPT ); Sat, 31 Oct 2015 01:32:39 -0400 Message-ID: <5634523B.8060109@huawei.com> Date: Sat, 31 Oct 2015 13:31:39 +0800 From: "Wangnan (F)" User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: Arnaldo Carvalho de Melo CC: , , , , , , , , , , , , , Subject: Re: [PATCH 10/31] perf test: Enforce LLVM test for BPF test References: <1444826502-49291-1-git-send-email-wangnan0@huawei.com> <1444826502-49291-11-git-send-email-wangnan0@huawei.com> <20151029223744.GK2923@kernel.org> In-Reply-To: <20151029223744.GK2923@kernel.org> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.111.66.109] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A0B0202.56345254.006D,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 99002837bf2826578e72be7a497e2612 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2015/10/30 6:37, Arnaldo Carvalho de Melo wrote: > Em Wed, Oct 14, 2015 at 12:41:21PM +0000, Wang Nan escreveu: >> This patch replaces the original toy BPF program with previous introduced >> bpf-script-example.c. Dynamically embedded it into 'llvm-src.c'. >> >> The newly introduced BPF program attaches a BPF program at >> 'sys_epoll_pwait()', and collect half samples from it. perf itself never > "collect half samples from it"? Can you rephrase this? I mean half of epoll_pwait syscall will be captured. This test case totally issue 111 calls. Thank you.