From mboxrd@z Thu Jan 1 00:00:00 1970 From: taeung Subject: What does several of perf configurations (alias, help, call-graph) mean ? Date: Thu, 05 Feb 2015 17:04:58 +0900 Message-ID: <54D3242A.8050606@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-pa0-f45.google.com ([209.85.220.45]:40147 "EHLO mail-pa0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751296AbbBEIFG (ORCPT ); Thu, 5 Feb 2015 03:05:06 -0500 Received: by mail-pa0-f45.google.com with SMTP id et14so8488533pad.4 for ; Thu, 05 Feb 2015 00:05:05 -0800 (PST) Received: from [123.140.74.165] ([123.140.74.165]) by mx.google.com with ESMTPSA id nm8sm4209476pdb.36.2015.02.05.00.05.03 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 05 Feb 2015 00:05:04 -0800 (PST) Sender: linux-perf-users-owner@vger.kernel.org List-ID: To: linux-perf-users@vger.kernel.org Hi, every one. :-) I'm tring to make things about perf configuration neat and tidy. Three questions have arisen doing it. 1. alias [ util/alias.c : alias_lookup_cb(), util/help.c : perf_unknown_cmd_config() ] What kind of alias keys are there ? 2. help [ builtin-help.c : perf_help_config() ] 'autocorrect' can have a value of integer type. What does the value mean ? 3. call-graph [ util/callchain.c : perf_callchain_config(), parse_callchain_record_opt() ] record-mode can be 'Framepointer style' or 'Dwarf style'. Why does 'Dwarf style' accompany dump-size ? 'threshold' can have a value of double type and the value can be entered into callchain_param.min_percent. What does 'threshold' mean ? Thanks, Taeung