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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS 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 8CFDBC65C20 for ; Mon, 8 Oct 2018 15:22:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4D791205C9 for ; Mon, 8 Oct 2018 15:22:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4D791205C9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726712AbeJHWeV (ORCPT ); Mon, 8 Oct 2018 18:34:21 -0400 Received: from mga01.intel.com ([192.55.52.88]:48112 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726491AbeJHWeV (ORCPT ); Mon, 8 Oct 2018 18:34:21 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Oct 2018 08:22:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,357,1534834800"; d="scan'208";a="76341890" Received: from linux.intel.com ([10.54.29.200]) by fmsmga007.fm.intel.com with ESMTP; 08 Oct 2018 08:21:52 -0700 Received: from [10.252.30.144] (abudanko-mobl.ccr.corp.intel.com [10.252.30.144]) by linux.intel.com (Postfix) with ESMTP id 006285801E6; Mon, 8 Oct 2018 08:21:49 -0700 (PDT) Subject: Re: [PATCH v11 3/3]: perf record: extend trace writing to multi AIO To: Jiri Olsa Cc: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Alexander Shishkin , Namhyung Kim , Andi Kleen , linux-kernel References: <7d42aa80-8e69-44e4-b963-e8ef89df2099@linux.intel.com> <3c3d65dc-b2f6-b102-1805-a05ee6755653@linux.intel.com> <20181008105509.GH17270@krava> <4016811d-74ac-fffc-7dc9-1c7acaf228be@linux.intel.com> <20181008124538.GE18757@krava> From: Alexey Budankov Organization: Intel Corp. Message-ID: Date: Mon, 8 Oct 2018 18:21:48 +0300 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20181008124538.GE18757@krava> 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 Hi, On 08.10.2018 15:45, Jiri Olsa wrote: > > 'perf record --aio-cblocks=N' could imply '--aio', > > I'd like to have simple/intuitive way to enable that, > without studing the meaning of the cblocks argument > > # perf record --aio ... > > means that I'm storing data via async writes, > and using some reasonable default for cblocks Semantically, --aio is equal to --aio-cblocks=default, as you said. So, options duplication could be avoided by having some parsing callback using OPT_CALLBACK(). > > and later on we'd add 'perf record --threads' > allowing threads based writers ;-) Oh, I see. Cool. Thanks, Alexey > > jirka >