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=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED 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 DDD91C43387 for ; Thu, 10 Jan 2019 11:24:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B918A214C6 for ; Thu, 10 Jan 2019 11:24:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728443AbfAJLYb (ORCPT ); Thu, 10 Jan 2019 06:24:31 -0500 Received: from mga02.intel.com ([134.134.136.20]:62625 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727455AbfAJLYb (ORCPT ); Thu, 10 Jan 2019 06:24:31 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Jan 2019 03:24:30 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,461,1539673200"; d="scan'208";a="115715755" Received: from linux.intel.com ([10.54.29.200]) by fmsmga008.fm.intel.com with ESMTP; 10 Jan 2019 03:24:30 -0800 Received: from [10.125.252.115] (abudanko-mobl.ccr.corp.intel.com [10.125.252.115]) by linux.intel.com (Postfix) with ESMTP id 2055D58058B; Thu, 10 Jan 2019 03:24:27 -0800 (PST) Subject: [PATCH v4 4/4] perf record: implement --affinity=node|cpu option From: Alexey Budankov To: Arnaldo Carvalho de Melo , Ingo Molnar , Peter Zijlstra Cc: Jiri Olsa , Namhyung Kim , Alexander Shishkin , Andi Kleen , linux-kernel References: <085c941d-106b-3d8f-027d-58962c54edd6@linux.intel.com> Organization: Intel Corp. Message-ID: <769d45ba-fa43-f38d-397d-ece83a2e88a6@linux.intel.com> Date: Thu, 10 Jan 2019 14:24:26 +0300 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: <085c941d-106b-3d8f-027d-58962c54edd6@linux.intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Implement --affinity=node|cpu option for the record mode defaulting to system affinity mask bouncing. Signed-off-by: Alexey Budankov --- changes in v3: - adjusted indentation at record__parse_affinity() --- tools/perf/Documentation/perf-record.txt | 5 +++++ tools/perf/builtin-record.c | 20 ++++++++++++++++++++ 2 files changed, 25 insertions(+) diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt index d232b13ea713..efb839784f32 100644 --- a/tools/perf/Documentation/perf-record.txt +++ b/tools/perf/Documentation/perf-record.txt @@ -440,6 +440,11 @@ Use control blocks in asynchronous (Posix AIO) trace writing mode (default: Asynchronous mode is supported only when linking Perf tool with libc library providing implementation for Posix AIO API. +--affinity=mode:: +Set affinity mask of trace reading thread according to the policy defined by 'mode' value: + node - thread affinity mask is set to NUMA node cpu mask of the processed mmap buffer + cpu - thread affinity mask is set to cpu of the processed mmap buffer + --all-kernel:: Configure all used events to run in kernel space. diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 553c2fabf3c1..94a966ba9a6f 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -1659,6 +1659,23 @@ static int parse_clockid(const struct option *opt, const char *str, int unset) return -1; } +static int record__parse_affinity(const struct option *opt, const char *str, int unset) +{ + struct record_opts *opts = (struct record_opts *)opt->value; + + if (unset) + return 0; + + if (str) { + if (!strcasecmp(str, "node")) + opts->affinity = PERF_AFFINITY_NODE; + else if (!strcasecmp(str, "cpu")) + opts->affinity = PERF_AFFINITY_CPU; + } + + return 0; +} + static int record__parse_mmap_pages(const struct option *opt, const char *str, int unset __maybe_unused) @@ -1966,6 +1983,9 @@ static struct option __record_options[] = { &nr_cblocks_default, "n", "Use control blocks in asynchronous trace writing mode (default: 1, max: 4)", record__aio_parse), #endif + OPT_CALLBACK(0, "affinity", &record.opts, "node|cpu", + "Set affinity mask of trace reading thread to NUMA node cpu mask or cpu of processed mmap buffer", + record__parse_affinity), OPT_END() };