From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3F7B8C433DB for ; Mon, 28 Dec 2020 17:42:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0DFBB22A84 for ; Mon, 28 Dec 2020 17:42:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728512AbgL1RmW (ORCPT ); Mon, 28 Dec 2020 12:42:22 -0500 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]:22328 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727743AbgL1Rlx (ORCPT ); Mon, 28 Dec 2020 12:41:53 -0500 Received: from pps.filterd (m0089730.ppops.net [127.0.0.1]) by m0089730.ppops.net (8.16.0.43/8.16.0.43) with SMTP id 0BSHYfF6013383 for ; Mon, 28 Dec 2020 09:41:12 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : content-type : content-transfer-encoding : mime-version; s=facebook; bh=Ysenkaz4xmHiGN9QNiiBDXf9aT5VS5bVRHvXpXtXS3s=; b=L8pLPuigLh1MGa12MmPBNbq1C71C0KMQiCkWSNgL2nzk2OFGw/3tyvcBZRX84V8MlQeY VL4fn7x9QGShcU3W3tk1Jq/oPsNcWxTFexqloWhd6KSv4U5EmKKuY1vO0RtnSBMR1+Ky CqBk9E2d16DmnaWlGnT0p6O0pDlxtiYYAP8= Received: from mail.thefacebook.com ([163.114.132.120]) by m0089730.ppops.net with ESMTP id 35p1j5xr9p-5 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Mon, 28 Dec 2020 09:41:11 -0800 Received: from intmgw003.03.ash8.facebook.com (2620:10d:c085:108::8) by mail.thefacebook.com (2620:10d:c085:11d::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Mon, 28 Dec 2020 09:41:09 -0800 Received: by devbig006.ftw2.facebook.com (Postfix, from userid 4523) id 7914B62E2D3A; Mon, 28 Dec 2020 09:41:08 -0800 (PST) From: Song Liu To: CC: , , , , , , , , Song Liu Subject: [PATCH v6 4/4] perf-stat: add documentation for -b option Date: Mon, 28 Dec 2020 09:40:54 -0800 Message-ID: <20201228174054.907740-5-songliubraving@fb.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20201228174054.907740-1-songliubraving@fb.com> References: <20201228174054.907740-1-songliubraving@fb.com> X-FB-Internal: Safe Content-Type: text/plain Content-Transfer-Encoding: quoted-printable X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343,18.0.737 definitions=2020-12-28_17:2020-12-28,2020-12-28 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 priorityscore=1501 malwarescore=0 mlxlogscore=999 bulkscore=0 phishscore=0 lowpriorityscore=0 mlxscore=0 spamscore=0 adultscore=5 clxscore=1015 impostorscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2012280111 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add documentation to perf-stat -b option, which stats event for BPF programs. Signed-off-by: Song Liu --- tools/perf/Documentation/perf-stat.txt | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentat= ion/perf-stat.txt index 5d4a673d7621a..15b9a646e853d 100644 --- a/tools/perf/Documentation/perf-stat.txt +++ b/tools/perf/Documentation/perf-stat.txt @@ -75,6 +75,20 @@ report:: --tid=3D:: stat events on existing thread id (comma separated list) =20 +-b:: +--bpf-prog:: + stat events on existing bpf program id (comma separated list), + requiring root righs. For example: + + # perf stat -e cycles,instructions --bpf-prog 17247 --timeout 1000 + + Performance counter stats for 'BPF program(s) 17247': + + 85,967 cycles + 28,982 instructions # 0.34 insn per cyc= le + + 1.102235068 seconds time elapsed + ifdef::HAVE_LIBPFM[] --pfm-events events:: Select a PMU event using libpfm4 syntax (see http://perfmon2.sf.net) --=20 2.24.1