From patchwork Fri Jun 19 15:36:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ahmed Karaman X-Patchwork-Id: 279979 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=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 6B1B6C433E0 for ; Fri, 19 Jun 2020 15:40:07 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2F29220786 for ; Fri, 19 Jun 2020 15:40:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="F8kW1+xA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2F29220786 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:50296 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jmJ7e-0004Kl-AD for qemu-devel@archiver.kernel.org; Fri, 19 Jun 2020 11:40:06 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60272) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jmJ4l-0006GG-Cx for qemu-devel@nongnu.org; Fri, 19 Jun 2020 11:37:07 -0400 Received: from mail-wm1-x343.google.com ([2a00:1450:4864:20::343]:39848) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jmJ4j-00054W-DI for qemu-devel@nongnu.org; Fri, 19 Jun 2020 11:37:07 -0400 Received: by mail-wm1-x343.google.com with SMTP id t194so9497993wmt.4 for ; Fri, 19 Jun 2020 08:37:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=3pe+cy1PMrcgZWmsymw2ifZ/LH88Xw0rfLGCjMAL5zA=; b=F8kW1+xA0FKovqqOOFwa1dxzijR9fQrxezJZbLg+m2j50uLWZnvtX92FRbsrLTpaCj RPgUw+/V45DaWGMn9GDJbWyybmsTahVhhWEe4bJwi6hAKXyOVzZy8MZWAnEt/keqSk8q KRC+ARApuKtUHYLOP5wtsOd2A3U0CI4kMKuhGhqrnNhPchFy6GRZYeEMYVsljyfxy05Z baHusll4uXvVGAQnzS7fgTm55D3rE3m1B7Az1cKGye7i+rijY7wxPVjMFgDf4c3A6UsC MCpMeBQP4clfLpldFrmFVzlZIZCIlCcb4Yt+IkUgd6WtS6nUTlejwzsGSOm8n+3ezU44 62+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=3pe+cy1PMrcgZWmsymw2ifZ/LH88Xw0rfLGCjMAL5zA=; b=RWbhaeJsVzBliQDysWN66AQKp4nPhBjHUgVVu+ByzJJKEub6dDcZ7QUxvWMT04A1y6 wiayu8YA2RZDq7cXFoipDCjGcs2cIwK54Zo9PtHfnWCkPrnobqNbO/DmfvJX7r7oO0H3 ljGGeE6SR2tenE0sG9HqWr2xivIIqX6/+9/9DevJh5c+Yd5Nv88SSzwgGQfOiYPI6+TR yph3i7Xio73gKfBqroPbwz1lEgs3BpXDnci2LBj7VEXAIo9KRmAzLQYidhYI/u/Tgjkh 8PS+o/mQGUMNZR2hONmY7kClUYqU/9GyB8yjYZI1VfycaworN4t4EUgI054g6KBnjNhd Yz8A== X-Gm-Message-State: AOAM532hOzMw3LYQB9aRAd7/XyKSH2R2WKjbXZG7KjkQKla47nSFTwil 6FbQE3thgc5LKESlCFbfip9yAzGD X-Google-Smtp-Source: ABdhPJxuB5+Vydm8g5UOpN2zeuYgtVj+r/nXBXBsewaVbgOaojsviV4tuAhQQpaiODI2FY4EZv2bWA== X-Received: by 2002:a1c:23d2:: with SMTP id j201mr4299768wmj.186.1592581023645; Fri, 19 Jun 2020 08:37:03 -0700 (PDT) Received: from AK-L.domain.name ([41.232.120.95]) by smtp.gmail.com with ESMTPSA id x186sm7341354wmg.8.2020.06.19.08.37.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 19 Jun 2020 08:37:03 -0700 (PDT) From: Ahmed Karaman To: qemu-devel@nongnu.org, aleksandar.qemu.devel@gmail.com, alex.bennee@linaro.org, eblake@redhat.com, rth@twiddle.net, ldoktor@redhat.com, ehabkost@redhat.com, crosa@redhat.com Subject: [PATCH v2 2/3] scripts/performance: Add topN_callgrind.py script Date: Fri, 19 Jun 2020 17:36:31 +0200 Message-Id: <20200619153632.1365-3-ahmedkhaledkaraman@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200619153632.1365-1-ahmedkhaledkaraman@gmail.com> References: <20200619153632.1365-1-ahmedkhaledkaraman@gmail.com> Received-SPF: pass client-ip=2a00:1450:4864:20::343; envelope-from=ahmedkhaledkaraman@gmail.com; helo=mail-wm1-x343.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, PDS_OTHER_BAD_TLD=1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ahmed Karaman Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Python script that prints the top N most executed functions in QEMU using callgrind. Example Usage: topN_callgrind.py -n 20 -- /path/to/qemu program -program -flags If '-n' is not specified, the default is 25. Example Output: No. Percentage Name Source File ---- --------- ------------------ ------------------------------ 1 24.577% 0x00000000082db000 ??? 2 20.467% float64_mul /fpu/softfloat.c 3 14.720% float64_sub /fpu/softfloat.c 4 13.864% float64_add /fpu/softfloat.c 5 4.876% helper_mulsd /target/i386/ops_sse.h 6 3.767% helper_subsd /target/i386/ops_sse.h 7 3.549% helper_addsd /target/i386/ops_sse.h 8 2.185% helper_ucomisd /target/i386/ops_sse.h 9 1.667% helper_lookup_tb_ptr /include/exec/tb-lookup.h 10 1.662% f64_compare /fpu/softfloat.c 11 1.509% helper_lookup_tb_ptr /accel/tcg/tcg-runtime.c 12 0.635% helper_lookup_tb_ptr /include/exec/exec-all.h 13 0.616% float64_div /fpu/softfloat.c 14 0.502% helper_pand_xmm /target/i386/ops_sse.h 15 0.502% float64_mul /include/fpu/softfloat.h 16 0.476% helper_lookup_tb_ptr /target/i386/cpu.h 17 0.437% float64_compare_quiet /fpu/softfloat.c 18 0.414% helper_pxor_xmm /target/i386/ops_sse.h 19 0.353% round_to_int /fpu/softfloat.c 20 0.347% helper_cc_compute_all /target/i386/cc_helper.c Signed-off-by: Ahmed Karaman --- scripts/performance/topN_callgrind.py | 131 ++++++++++++++++++++++++++ 1 file changed, 131 insertions(+) create mode 100755 scripts/performance/topN_callgrind.py diff --git a/scripts/performance/topN_callgrind.py b/scripts/performance/topN_callgrind.py new file mode 100755 index 0000000000..2cfff54c98 --- /dev/null +++ b/scripts/performance/topN_callgrind.py @@ -0,0 +1,131 @@ +#!/usr/bin/env python3 + +# Print the top N most executed functions in QEMU using callgrind. +# Example Usage: +# topN_callgrind.py -n 20 -- /path/to/qemu program -program -flags +# +# If '-n' is not specified, the default is 25. +# +# This file is a part of the project "TCG Continuous Benchmarking". +# +# Copyright (C) 2020 Ahmed Karaman +# Copyright (C) 2020 Aleksandar Markovic +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +import argparse +import os +import subprocess +import sys + + +# Parse the command line arguments +parser = argparse.ArgumentParser(usage=\ + 'topN_callgrind.py [-h] [-n TOP_FUNCTIONS] --' + ' /path/to/qemu program -[flags PROGRAM_FLAGS]') + +parser.add_argument('-n', dest='top', type=int, default=25, + help='Specify the number of top functions to print.') + +parser.add_argument('command', type=str, nargs='+', help=argparse.SUPPRESS) + +args = parser.parse_args() + +# Extract the needed variables from the args +command = args.command +top = args.top + +# Insure that valgrind is installed +check_valgrind = subprocess.run( + ["which", "valgrind"], stdout=subprocess.DEVNULL) +if check_valgrind.returncode: + sys.exit("Please install valgrind before running the script!") + +# Run callgrind +callgrind = subprocess.run((["valgrind", "--tool=callgrind", + "--callgrind-out-file=callgrind.data"] + command), + stdout=subprocess.DEVNULL, stderr=subprocess.PIPE) +if callgrind.returncode: + sys.exit(callgrind.stderr.decode("utf-8")) + +# Save callgrind_annotate output to tmp.callgrind.data +with open("tmp.callgrind.data", "w") as output: + callgrind_annotate = subprocess.run( + ["callgrind_annotate", "callgrind.data"], + stdout=output, + stderr=subprocess.PIPE) + if callgrind_annotate.returncode: + os.unlink('callgrind.data') + output.close() + os.unlink('tmp.callgrind.data') + sys.exit(callgrind_annotate.stderr.decode("utf-8")) + + +# Read the callgrind_annotate output to callgrind_data[] +callgrind_data = [] +with open('tmp.callgrind.data', 'r') as data: + callgrind_data = data.readlines() + +# Line number with the total number of instructions +total_instructions_line_number = 20 + +# Get the total number of instructions +total_instructions_line_data = callgrind_data[total_instructions_line_number] +total_number_of_instructions = total_instructions_line_data.split(' ')[0] +total_number_of_instructions = int( + total_number_of_instructions.replace(',', '')) + +# Line number with the top function +first_func_line = 25 + +# Number of functions recorded by callgrind, last two lines are always empty +number_of_functions = len(callgrind_data) - first_func_line - 2 + +# Limit the number of top functions to "top" +number_of_top_functions = (top if number_of_functions > + top else number_of_functions) + +# Store the data of the top functions in top_functions[] +top_functions = callgrind_data[first_func_line: + first_func_line + number_of_top_functions] + +# Print information headers +print('{:>4} {:>10} {:<30} {}\n{} {} {} {}'.format('No.', + 'Percentage', + 'Name', + 'Source File', + '-' * 4, + '-' * 10, + '-' * 30, + '-' * 30, + )) + +# Print top N functions +for (index, function) in enumerate(top_functions, start=1): + function_data = function.split() + # Calculate function percentage + function_instructions = float(function_data[0].replace(',', '')) + function_percentage = (function_instructions / + total_number_of_instructions)*100 + # Get function name and source files path + function_source_path, function_name = function_data[1].split(':') + # Print extracted data + print('{:>4} {:>9.3f}% {:<30} {}'.format(index, + round(function_percentage, 3), + function_name, + function_source_path)) + +# Remove intermediate files +os.unlink('callgrind.data') +os.unlink('tmp.callgrind.data')