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Diffstat (limited to '')
| -rwxr-xr-x | tools/power/x86/amd_pstate_tracer/amd_pstate_trace.py | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/tools/power/x86/amd_pstate_tracer/amd_pstate_trace.py b/tools/power/x86/amd_pstate_tracer/amd_pstate_trace.py new file mode 100755 index 000000000000..2dea4032ac56 --- /dev/null +++ b/tools/power/x86/amd_pstate_tracer/amd_pstate_trace.py @@ -0,0 +1,354 @@ +#!/usr/bin/env python3 +# SPDX-License-Identifier: GPL-2.0-only +# -*- coding: utf-8 -*- +# +""" This utility can be used to debug and tune the performance of the +AMD P-State driver. It imports intel_pstate_tracer to analyze AMD P-State +trace event. + +Prerequisites: + Python version 2.7.x or higher + gnuplot 5.0 or higher + gnuplot-py 1.8 or higher + (Most of the distributions have these required packages. They may be called + gnuplot-py, phython-gnuplot or phython3-gnuplot, gnuplot-nox, ... ) + + Kernel config for Linux trace is enabled + + see print_help(): for Usage and Output details + +""" +from __future__ import print_function +from datetime import datetime +import subprocess +import os +import time +import re +import signal +import sys +import getopt +import Gnuplot +from numpy import * +from decimal import * +sys.path.append('../intel_pstate_tracer') +#import intel_pstate_tracer +import intel_pstate_tracer as ipt + +__license__ = "GPL version 2" + +MAX_CPUS = 256 +# Define the csv file columns +C_COMM = 15 +C_ELAPSED = 14 +C_SAMPLE = 13 +C_DURATION = 12 +C_LOAD = 11 +C_TSC = 10 +C_APERF = 9 +C_MPERF = 8 +C_FREQ = 7 +C_MAX_PERF = 6 +C_DES_PERF = 5 +C_MIN_PERF = 4 +C_USEC = 3 +C_SEC = 2 +C_CPU = 1 + +global sample_num, last_sec_cpu, last_usec_cpu, start_time, test_name, trace_file + +getcontext().prec = 11 + +sample_num =0 +last_sec_cpu = [0] * MAX_CPUS +last_usec_cpu = [0] * MAX_CPUS + +def plot_per_cpu_freq(cpu_index): + """ Plot per cpu frequency """ + + file_name = 'cpu{:0>3}.csv'.format(cpu_index) + if os.path.exists(file_name): + output_png = "cpu%03d_frequency.png" % cpu_index + g_plot = ipt.common_gnuplot_settings() + g_plot('set output "' + output_png + '"') + g_plot('set yrange [0:7]') + g_plot('set ytics 0, 1') + g_plot('set ylabel "CPU Frequency (GHz)"') + g_plot('set title "{} : frequency : CPU {:0>3} : {:%F %H:%M}"'.format(test_name, cpu_index, datetime.now())) + g_plot('set ylabel "CPU frequency"') + g_plot('set key off') + ipt.set_4_plot_linestyles(g_plot) + g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y1'.format(C_ELAPSED, C_FREQ)) + +def plot_per_cpu_des_perf(cpu_index): + """ Plot per cpu desired perf """ + + file_name = 'cpu{:0>3}.csv'.format(cpu_index) + if os.path.exists(file_name): + output_png = "cpu%03d_des_perf.png" % cpu_index + g_plot = ipt.common_gnuplot_settings() + g_plot('set output "' + output_png + '"') + g_plot('set yrange [0:255]') + g_plot('set ylabel "des perf"') + g_plot('set title "{} : cpu des perf : CPU {:0>3} : {:%F %H:%M}"'.format(test_name, cpu_index, datetime.now())) + g_plot('set key off') + ipt.set_4_plot_linestyles(g_plot) + g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y1'.format(C_ELAPSED, C_DES_PERF)) + +def plot_per_cpu_load(cpu_index): + """ Plot per cpu load """ + + file_name = 'cpu{:0>3}.csv'.format(cpu_index) + if os.path.exists(file_name): + output_png = "cpu%03d_load.png" % cpu_index + g_plot = ipt.common_gnuplot_settings() + g_plot('set output "' + output_png + '"') + g_plot('set yrange [0:100]') + g_plot('set ytics 0, 10') + g_plot('set ylabel "CPU load (percent)"') + g_plot('set title "{} : cpu load : CPU {:0>3} : {:%F %H:%M}"'.format(test_name, cpu_index, datetime.now())) + g_plot('set key off') + ipt.set_4_plot_linestyles(g_plot) + g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y1'.format(C_ELAPSED, C_LOAD)) + +def plot_all_cpu_frequency(): + """ Plot all cpu frequencies """ + + output_png = 'all_cpu_frequencies.png' + g_plot = ipt.common_gnuplot_settings() + g_plot('set output "' + output_png + '"') + g_plot('set ylabel "CPU Frequency (GHz)"') + g_plot('set title "{} : cpu frequencies : {:%F %H:%M}"'.format(test_name, datetime.now())) + + title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') + plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_FREQ) + g_plot('title_list = "{}"'.format(title_list)) + g_plot(plot_str) + +def plot_all_cpu_des_perf(): + """ Plot all cpu desired perf """ + + output_png = 'all_cpu_des_perf.png' + g_plot = ipt.common_gnuplot_settings() + g_plot('set output "' + output_png + '"') + g_plot('set ylabel "des perf"') + g_plot('set title "{} : cpu des perf : {:%F %H:%M}"'.format(test_name, datetime.now())) + + title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') + plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 255 ps 1 title i".format(C_ELAPSED, C_DES_PERF) + g_plot('title_list = "{}"'.format(title_list)) + g_plot(plot_str) + +def plot_all_cpu_load(): + """ Plot all cpu load """ + + output_png = 'all_cpu_load.png' + g_plot = ipt.common_gnuplot_settings() + g_plot('set output "' + output_png + '"') + g_plot('set yrange [0:100]') + g_plot('set ylabel "CPU load (percent)"') + g_plot('set title "{} : cpu load : {:%F %H:%M}"'.format(test_name, datetime.now())) + + title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') + plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 255 ps 1 title i".format(C_ELAPSED, C_LOAD) + g_plot('title_list = "{}"'.format(title_list)) + g_plot(plot_str) + +def store_csv(cpu_int, time_pre_dec, time_post_dec, min_perf, des_perf, max_perf, freq_ghz, mperf, aperf, tsc, common_comm, load, duration_ms, sample_num, elapsed_time, cpu_mask): + """ Store master csv file information """ + + global graph_data_present + + if cpu_mask[cpu_int] == 0: + return + + try: + f_handle = open('cpu.csv', 'a') + string_buffer = "CPU_%03u, %05u, %06u, %u, %u, %u, %.4f, %u, %u, %u, %.2f, %.3f, %u, %.3f, %s\n" % (cpu_int, int(time_pre_dec), int(time_post_dec), int(min_perf), int(des_perf), int(max_perf), freq_ghz, int(mperf), int(aperf), int(tsc), load, duration_ms, sample_num, elapsed_time, common_comm) + f_handle.write(string_buffer) + f_handle.close() + except: + print('IO error cpu.csv') + return + + graph_data_present = True; + + +def cleanup_data_files(): + """ clean up existing data files """ + + if os.path.exists('cpu.csv'): + os.remove('cpu.csv') + f_handle = open('cpu.csv', 'a') + f_handle.write('common_cpu, common_secs, common_usecs, min_perf, des_perf, max_perf, freq, mperf, aperf, tsc, load, duration_ms, sample_num, elapsed_time, common_comm') + f_handle.write('\n') + f_handle.close() + +def read_trace_data(file_name, cpu_mask): + """ Read and parse trace data """ + + global current_max_cpu + global sample_num, last_sec_cpu, last_usec_cpu, start_time + + try: + data = open(file_name, 'r').read() + except: + print('Error opening ', file_name) + sys.exit(2) + + for line in data.splitlines(): + search_obj = \ + re.search(r'(^(.*?)\[)((\d+)[^\]])(.*?)(\d+)([.])(\d+)(.*?amd_min_perf=)(\d+)(.*?amd_des_perf=)(\d+)(.*?amd_max_perf=)(\d+)(.*?freq=)(\d+)(.*?mperf=)(\d+)(.*?aperf=)(\d+)(.*?tsc=)(\d+)' + , line) + + if search_obj: + cpu = search_obj.group(3) + cpu_int = int(cpu) + cpu = str(cpu_int) + + time_pre_dec = search_obj.group(6) + time_post_dec = search_obj.group(8) + min_perf = search_obj.group(10) + des_perf = search_obj.group(12) + max_perf = search_obj.group(14) + freq = search_obj.group(16) + mperf = search_obj.group(18) + aperf = search_obj.group(20) + tsc = search_obj.group(22) + + common_comm = search_obj.group(2).replace(' ', '') + + if sample_num == 0 : + start_time = Decimal(time_pre_dec) + Decimal(time_post_dec) / Decimal(1000000) + sample_num += 1 + + if last_sec_cpu[cpu_int] == 0 : + last_sec_cpu[cpu_int] = time_pre_dec + last_usec_cpu[cpu_int] = time_post_dec + else : + duration_us = (int(time_pre_dec) - int(last_sec_cpu[cpu_int])) * 1000000 + (int(time_post_dec) - int(last_usec_cpu[cpu_int])) + duration_ms = Decimal(duration_us) / Decimal(1000) + last_sec_cpu[cpu_int] = time_pre_dec + last_usec_cpu[cpu_int] = time_post_dec + elapsed_time = Decimal(time_pre_dec) + Decimal(time_post_dec) / Decimal(1000000) - start_time + load = Decimal(int(mperf)*100)/ Decimal(tsc) + freq_ghz = Decimal(freq)/Decimal(1000000) + store_csv(cpu_int, time_pre_dec, time_post_dec, min_perf, des_perf, max_perf, freq_ghz, mperf, aperf, tsc, common_comm, load, duration_ms, sample_num, elapsed_time, cpu_mask) + + if cpu_int > current_max_cpu: + current_max_cpu = cpu_int +# Now separate the main overall csv file into per CPU csv files. + ipt.split_csv(current_max_cpu, cpu_mask) + + +def signal_handler(signal, frame): + print(' SIGINT: Forcing cleanup before exit.') + if interval: + ipt.disable_trace(trace_file) + ipt.clear_trace_file() + ipt.free_trace_buffer() + sys.exit(0) + +trace_file = "/sys/kernel/debug/tracing/events/amd_cpu/enable" +signal.signal(signal.SIGINT, signal_handler) + +interval = "" +file_name = "" +cpu_list = "" +test_name = "" +memory = "10240" +graph_data_present = False; + +valid1 = False +valid2 = False + +cpu_mask = zeros((MAX_CPUS,), dtype=int) + + +try: + opts, args = getopt.getopt(sys.argv[1:],"ht:i:c:n:m:",["help","trace_file=","interval=","cpu=","name=","memory="]) +except getopt.GetoptError: + ipt.print_help('amd_pstate') + sys.exit(2) +for opt, arg in opts: + if opt == '-h': + print() + sys.exit() + elif opt in ("-t", "--trace_file"): + valid1 = True + location = os.path.realpath(os.path.join(os.getcwd(), os.path.dirname(__file__))) + file_name = os.path.join(location, arg) + elif opt in ("-i", "--interval"): + valid1 = True + interval = arg + elif opt in ("-c", "--cpu"): + cpu_list = arg + elif opt in ("-n", "--name"): + valid2 = True + test_name = arg + elif opt in ("-m", "--memory"): + memory = arg + +if not (valid1 and valid2): + ipt.print_help('amd_pstate') + sys.exit() + +if cpu_list: + for p in re.split("[,]", cpu_list): + if int(p) < MAX_CPUS : + cpu_mask[int(p)] = 1 +else: + for i in range (0, MAX_CPUS): + cpu_mask[i] = 1 + +if not os.path.exists('results'): + os.mkdir('results') + ipt.fix_ownership('results') + +os.chdir('results') +if os.path.exists(test_name): + print('The test name directory already exists. Please provide a unique test name. Test re-run not supported, yet.') + sys.exit() +os.mkdir(test_name) +ipt.fix_ownership(test_name) +os.chdir(test_name) + +cur_version = sys.version_info +print('python version (should be >= 2.7):') +print(cur_version) + +cleanup_data_files() + +if interval: + file_name = "/sys/kernel/debug/tracing/trace" + ipt.clear_trace_file() + ipt.set_trace_buffer_size(memory) + ipt.enable_trace(trace_file) + time.sleep(int(interval)) + ipt.disable_trace(trace_file) + +current_max_cpu = 0 + +read_trace_data(file_name, cpu_mask) + +if interval: + ipt.clear_trace_file() + ipt.free_trace_buffer() + +if graph_data_present == False: + print('No valid data to plot') + sys.exit(2) + +for cpu_no in range(0, current_max_cpu + 1): + plot_per_cpu_freq(cpu_no) + plot_per_cpu_des_perf(cpu_no) + plot_per_cpu_load(cpu_no) + +plot_all_cpu_des_perf() +plot_all_cpu_frequency() +plot_all_cpu_load() + +for root, dirs, files in os.walk('.'): + for f in files: + ipt.fix_ownership(f) + +os.chdir('../../') |