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That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @gmail.com) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Python script that prints executed helpers of a QEMU invocation. Syntax: list_helpers.py [-h] -- \ [] \ [] [-h] - Print the script arguments help message. Example of usage: list_helpers.py -- qemu-mips coulomb_double-mips -n10 Example output: Total number of instructions: 108,933,695 Executed QEMU Helpers: No. Ins Percent Calls Ins/Call Helper Name Source File --- ------- ------- ------ -------- -------------------- --------------- 1 183,021 0.168% 1,305 140 helper_float_sub_d /target/= mips/fpu_helper.c 2 177,111 0.163% 770 230 helper_float_madd_d /target/= mips/fpu_helper.c 3 171,537 0.157% 1,014 169 helper_float_mul_d /target/= mips/fpu_helper.c 4 157,298 0.144% 2,443 64 helper_lookup_tb_ptr /accel/t= cg/tcg-runtime.c 5 138,123 0.127% 897 153 helper_float_add_d /target/= mips/fpu_helper.c 6 47,083 0.043% 207 227 helper_float_msub_d /target/= mips/fpu_helper.c 7 24,062 0.022% 487 49 helper_cmp_d_lt /target/= mips/fpu_helper.c 8 22,910 0.021% 150 152 helper_float_div_d /target/= mips/fpu_helper.c 9 15,497 0.014% 321 48 helper_cmp_d_eq /target/= mips/fpu_helper.c 10 9,100 0.008% 52 175 helper_float_trunc_w_d /target/= mips/fpu_helper.c 11 7,059 0.006% 10 705 helper_float_sqrt_d /target/= mips/fpu_helper.c 12 3,000 0.003% 40 75 helper_cmp_d_ule /target/= mips/fpu_helper.c 13 2,720 0.002% 20 136 helper_float_cvtd_w /target/= mips/fpu_helper.c 14 2,477 0.002% 27 91 helper_swl /target/= mips/op_helper.c 15 2,000 0.002% 40 50 helper_cmp_d_le /target/= mips/fpu_helper.c 16 1,800 0.002% 40 45 helper_cmp_d_un /target/= mips/fpu_helper.c 17 1,164 0.001% 12 97 helper_raise_exception_ /target/= mips/op_helper.c 18 720 0.001% 10 72 helper_cmp_d_ult /target/= mips/fpu_helper.c 19 560 0.001% 140 4 helper_cfc1 /target/= mips/fpu_helper.c Signed-off-by: Ahmed Karaman --- scripts/performance/list_helpers.py | 221 ++++++++++++++++++++++++++++ 1 file changed, 221 insertions(+) create mode 100755 scripts/performance/list_helpers.py diff --git a/scripts/performance/list_helpers.py b/scripts/performance/list= _helpers.py new file mode 100755 index 0000000000..823b1cef66 --- /dev/null +++ b/scripts/performance/list_helpers.py @@ -0,0 +1,221 @@ +#!/usr/bin/env python3 + +""" +Print the executed helpers of a QEMU invocation. + +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 +import tempfile + +from typing import List, Union + + +def find_jit_line(callgrind_data: List[str]) -> int: + """ + Search for the line with the JIT call in the callgrind_annotate + output when ran using --tre=3Dcalling. + All the helpers should be listed after that line. + + Parameters: + callgrind_data (List[str]): callgrind_annotate output + + Returns: + (int): Line number of JIT call + """ + line =3D -1 + for (i, callgrind_datum) in enumerate(callgrind_data): + split_line =3D callgrind_datum.split() + if len(split_line) > 2 and \ + split_line[1] =3D=3D "*" and \ + split_line[-1] =3D=3D "[???]": + line =3D i + break + return line + + +def get_helpers(jit_line: int, + callgrind_data: List[str]) -> List[List[Union[str, int]]]: + """ + Get all helpers data given the line number of the JIT call. + + Parameters: + jit_line (int): Line number of the JIT call + callgrind_data (List[str]): callgrind_annotate output + + Returns: + (List[List[Union[str, int]]]):[[number_of_instructions(int), + helper_name(str), + number_of_calls(int), + source_file(str)], + ...] + """ + helpers: List[List[Union[str, int]]] =3D [] + next_helper =3D jit_line + 1 + while callgrind_data[next_helper] !=3D "\n": + split_line =3D callgrind_data[next_helper].split() + number_of_instructions =3D int(split_line[0].replace(",", "")) + source_file =3D split_line[2].split(":")[0] + callee_name =3D split_line[2].split(":")[1] + number_of_calls =3D int(split_line[3][1:-2]) + helpers.append([number_of_instructions, callee_name, + number_of_calls, source_file]) + next_helper +=3D 1 + return sorted(helpers, reverse=3DTrue) + + +def main(): + """ + Parse the command line arguments then start execution + + Syntax: + list_helpers.py [-h] -- \ + [] \ + [] + + [-h] - Print the script arguments help message. + + Example of usage: + list_helpers.py -- qemu-mips coulomb_double-mips + """ + # Parse the command line arguments + parser =3D argparse.ArgumentParser( + usage=3D"list_helpers.py [-h] -- " + " [] " + " []") + + parser.add_argument("command", type=3Dstr, nargs=3D"+", help=3Dargpars= e.SUPPRESS) + + args =3D parser.parse_args() + + # Extract the needed variables from the args + command =3D args.command + + # Insure that valgrind is installed + check_valgrind =3D subprocess.run( + ["which", "valgrind"], stdout=3Dsubprocess.DEVNULL, check=3DFalse) + if check_valgrind.returncode: + sys.exit("Please install valgrind before running the script.") + + # Save all intermediate files in a temporary directory + with tempfile.TemporaryDirectory() as tmpdirname: + # callgrind output file path + data_path =3D os.path.join(tmpdirname, "callgrind.data") + # callgrind_annotate output file path + annotate_out_path =3D os.path.join(tmpdirname, "callgrind_annotate= .out") + + # Run callgrind + callgrind =3D subprocess.run((["valgrind", + "--tool=3Dcallgrind", + "--callgrind-out-file=3D" + data_path] + + command), + stdout=3Dsubprocess.DEVNULL, + stderr=3Dsubprocess.PIPE, + check=3DFalse) + if callgrind.returncode: + sys.exit(callgrind.stderr.decode("utf-8")) + + # Save callgrind_annotate output + with open(annotate_out_path, "w") as output: + callgrind_annotate =3D subprocess.run(["callgrind_annotate", + data_path, + "--threshold=3D100", + "--tree=3Dcalling"], + stdout=3Doutput, + stderr=3Dsubprocess.PIPE, + check=3DFalse) + if callgrind_annotate.returncode: + sys.exit(callgrind_annotate.stderr.decode("utf-8")) + + # Read the callgrind_annotate output to callgrind_data[] + callgrind_data =3D [] + with open(annotate_out_path, "r") as data: + callgrind_data =3D data.readlines() + + # Line number with the total number of instructions + total_instructions_line_number =3D 20 + # Get the total number of instructions + total_instructions_line_data =3D \ + callgrind_data[total_instructions_line_number] + total_instructions =3D total_instructions_line_data.split()[0] + + print("Total number of instructions: {}\n".format(total_instructio= ns)) + + # Remove commas and convert to int + total_instructions =3D int(total_instructions.replace(",", "")) + + # Line number with the JIT call + jit_line =3D find_jit_line(callgrind_data) + if jit_line =3D=3D -1: + sys.exit("Couldn't locate the JIT call ... Exiting") + + # Get helpers + helpers =3D get_helpers(jit_line, callgrind_data) + + print("Executed QEMU Helpers:\n") + + # Print table header + print("{:>4} {:>15} {:>10} {:>15} {:>10} {:<25} {}". + format( + "No.", + "Instructions", + "Percentage", + "Calls", + "Ins/Call", + "Helper Name", + "Source File") + ) + + print("{:>4} {:>15} {:>10} {:>15} {:>10} {:<25} {}". + format( + "-" * 4, + "-" * 15, + "-" * 10, + "-" * 15, + "-" * 10, + "-" * 25, + "-" * 30) + ) + + for (index, callee) in enumerate(helpers, start=3D1): + instructions =3D callee[0] + percentage =3D (callee[0] / total_instructions) * 100 + calls =3D callee[2] + instruction_per_call =3D int(callee[0] / callee[2]) + helper_name =3D callee[1] + source_file =3D callee[3] + # Print extracted data + print("{:>4} {:>15} {:>9.3f}% {:>15} {:>10} {:<25} {}". + format( + index, + format(instructions, ","), + round(percentage, 3), + format(calls, ","), + format(instruction_per_call, ","), + helper_name, + source_file) + ) + + +if __name__ =3D=3D "__main__": + main() --=20 2.17.1