1#!/usr/bin/env python3 2# SPDX-License-Identifier: GPL-2.0-only 3# -*- coding: utf-8 -*- 4# 5""" This utility can be used to debug and tune the performance of the 6AMD P-State driver. It imports intel_pstate_tracer to analyze AMD P-State 7trace event. 8 9Prerequisites: 10 Python version 2.7.x or higher 11 gnuplot 5.0 or higher 12 gnuplot-py 1.8 or higher 13 (Most of the distributions have these required packages. They may be called 14 gnuplot-py, phython-gnuplot or phython3-gnuplot, gnuplot-nox, ... ) 15 16 Kernel config for Linux trace is enabled 17 18 see print_help(): for Usage and Output details 19 20""" 21from __future__ import print_function 22from datetime import datetime 23import subprocess 24import os 25import time 26import re 27import signal 28import sys 29import getopt 30import Gnuplot 31from numpy import * 32from decimal import * 33sys.path.append('../intel_pstate_tracer') 34#import intel_pstate_tracer 35import intel_pstate_tracer as ipt 36 37__license__ = "GPL version 2" 38 39MAX_CPUS = 256 40# Define the csv file columns 41C_COMM = 15 42C_ELAPSED = 14 43C_SAMPLE = 13 44C_DURATION = 12 45C_LOAD = 11 46C_TSC = 10 47C_APERF = 9 48C_MPERF = 8 49C_FREQ = 7 50C_MAX_PERF = 6 51C_DES_PERF = 5 52C_MIN_PERF = 4 53C_USEC = 3 54C_SEC = 2 55C_CPU = 1 56 57global sample_num, last_sec_cpu, last_usec_cpu, start_time, test_name, trace_file 58 59getcontext().prec = 11 60 61sample_num =0 62last_sec_cpu = [0] * MAX_CPUS 63last_usec_cpu = [0] * MAX_CPUS 64 65def plot_per_cpu_freq(cpu_index): 66 """ Plot per cpu frequency """ 67 68 file_name = 'cpu{:0>3}.csv'.format(cpu_index) 69 if os.path.exists(file_name): 70 output_png = "cpu%03d_frequency.png" % cpu_index 71 g_plot = ipt.common_gnuplot_settings() 72 g_plot('set output "' + output_png + '"') 73 g_plot('set yrange [0:7]') 74 g_plot('set ytics 0, 1') 75 g_plot('set ylabel "CPU Frequency (GHz)"') 76 g_plot('set title "{} : frequency : CPU {:0>3} : {:%F %H:%M}"'.format(test_name, cpu_index, datetime.now())) 77 g_plot('set ylabel "CPU frequency"') 78 g_plot('set key off') 79 ipt.set_4_plot_linestyles(g_plot) 80 g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y1'.format(C_ELAPSED, C_FREQ)) 81 82def plot_per_cpu_des_perf(cpu_index): 83 """ Plot per cpu desired perf """ 84 85 file_name = 'cpu{:0>3}.csv'.format(cpu_index) 86 if os.path.exists(file_name): 87 output_png = "cpu%03d_des_perf.png" % cpu_index 88 g_plot = ipt.common_gnuplot_settings() 89 g_plot('set output "' + output_png + '"') 90 g_plot('set yrange [0:255]') 91 g_plot('set ylabel "des perf"') 92 g_plot('set title "{} : cpu des perf : CPU {:0>3} : {:%F %H:%M}"'.format(test_name, cpu_index, datetime.now())) 93 g_plot('set key off') 94 ipt.set_4_plot_linestyles(g_plot) 95 g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y1'.format(C_ELAPSED, C_DES_PERF)) 96 97def plot_per_cpu_load(cpu_index): 98 """ Plot per cpu load """ 99 100 file_name = 'cpu{:0>3}.csv'.format(cpu_index) 101 if os.path.exists(file_name): 102 output_png = "cpu%03d_load.png" % cpu_index 103 g_plot = ipt.common_gnuplot_settings() 104 g_plot('set output "' + output_png + '"') 105 g_plot('set yrange [0:100]') 106 g_plot('set ytics 0, 10') 107 g_plot('set ylabel "CPU load (percent)"') 108 g_plot('set title "{} : cpu load : CPU {:0>3} : {:%F %H:%M}"'.format(test_name, cpu_index, datetime.now())) 109 g_plot('set key off') 110 ipt.set_4_plot_linestyles(g_plot) 111 g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y1'.format(C_ELAPSED, C_LOAD)) 112 113def plot_all_cpu_frequency(): 114 """ Plot all cpu frequencies """ 115 116 output_png = 'all_cpu_frequencies.png' 117 g_plot = ipt.common_gnuplot_settings() 118 g_plot('set output "' + output_png + '"') 119 g_plot('set ylabel "CPU Frequency (GHz)"') 120 g_plot('set title "{} : cpu frequencies : {:%F %H:%M}"'.format(test_name, datetime.now())) 121 122 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') 123 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_FREQ) 124 g_plot('title_list = "{}"'.format(title_list)) 125 g_plot(plot_str) 126 127def plot_all_cpu_des_perf(): 128 """ Plot all cpu desired perf """ 129 130 output_png = 'all_cpu_des_perf.png' 131 g_plot = ipt.common_gnuplot_settings() 132 g_plot('set output "' + output_png + '"') 133 g_plot('set ylabel "des perf"') 134 g_plot('set title "{} : cpu des perf : {:%F %H:%M}"'.format(test_name, datetime.now())) 135 136 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') 137 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) 138 g_plot('title_list = "{}"'.format(title_list)) 139 g_plot(plot_str) 140 141def plot_all_cpu_load(): 142 """ Plot all cpu load """ 143 144 output_png = 'all_cpu_load.png' 145 g_plot = ipt.common_gnuplot_settings() 146 g_plot('set output "' + output_png + '"') 147 g_plot('set yrange [0:100]') 148 g_plot('set ylabel "CPU load (percent)"') 149 g_plot('set title "{} : cpu load : {:%F %H:%M}"'.format(test_name, datetime.now())) 150 151 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') 152 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 255 ps 1 title i".format(C_ELAPSED, C_LOAD) 153 g_plot('title_list = "{}"'.format(title_list)) 154 g_plot(plot_str) 155 156def 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): 157 """ Store master csv file information """ 158 159 global graph_data_present 160 161 if cpu_mask[cpu_int] == 0: 162 return 163 164 try: 165 f_handle = open('cpu.csv', 'a') 166 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) 167 f_handle.write(string_buffer) 168 f_handle.close() 169 except: 170 print('IO error cpu.csv') 171 return 172 173 graph_data_present = True; 174 175 176def cleanup_data_files(): 177 """ clean up existing data files """ 178 179 if os.path.exists('cpu.csv'): 180 os.remove('cpu.csv') 181 f_handle = open('cpu.csv', 'a') 182 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') 183 f_handle.write('\n') 184 f_handle.close() 185 186def read_trace_data(file_name, cpu_mask): 187 """ Read and parse trace data """ 188 189 global current_max_cpu 190 global sample_num, last_sec_cpu, last_usec_cpu, start_time 191 192 try: 193 data = open(file_name, 'r').read() 194 except: 195 print('Error opening ', file_name) 196 sys.exit(2) 197 198 for line in data.splitlines(): 199 search_obj = \ 200 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+)' 201 , line) 202 203 if search_obj: 204 cpu = search_obj.group(3) 205 cpu_int = int(cpu) 206 cpu = str(cpu_int) 207 208 time_pre_dec = search_obj.group(6) 209 time_post_dec = search_obj.group(8) 210 min_perf = search_obj.group(10) 211 des_perf = search_obj.group(12) 212 max_perf = search_obj.group(14) 213 freq = search_obj.group(16) 214 mperf = search_obj.group(18) 215 aperf = search_obj.group(20) 216 tsc = search_obj.group(22) 217 218 common_comm = search_obj.group(2).replace(' ', '') 219 220 if sample_num == 0 : 221 start_time = Decimal(time_pre_dec) + Decimal(time_post_dec) / Decimal(1000000) 222 sample_num += 1 223 224 if last_sec_cpu[cpu_int] == 0 : 225 last_sec_cpu[cpu_int] = time_pre_dec 226 last_usec_cpu[cpu_int] = time_post_dec 227 else : 228 duration_us = (int(time_pre_dec) - int(last_sec_cpu[cpu_int])) * 1000000 + (int(time_post_dec) - int(last_usec_cpu[cpu_int])) 229 duration_ms = Decimal(duration_us) / Decimal(1000) 230 last_sec_cpu[cpu_int] = time_pre_dec 231 last_usec_cpu[cpu_int] = time_post_dec 232 elapsed_time = Decimal(time_pre_dec) + Decimal(time_post_dec) / Decimal(1000000) - start_time 233 load = Decimal(int(mperf)*100)/ Decimal(tsc) 234 freq_ghz = Decimal(freq)/Decimal(1000000) 235 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) 236 237 if cpu_int > current_max_cpu: 238 current_max_cpu = cpu_int 239# Now separate the main overall csv file into per CPU csv files. 240 ipt.split_csv(current_max_cpu, cpu_mask) 241 242 243def signal_handler(signal, frame): 244 print(' SIGINT: Forcing cleanup before exit.') 245 if interval: 246 ipt.disable_trace(trace_file) 247 ipt.clear_trace_file() 248 ipt.free_trace_buffer() 249 sys.exit(0) 250 251trace_file = "/sys/kernel/tracing/events/amd_cpu/enable" 252signal.signal(signal.SIGINT, signal_handler) 253 254interval = "" 255file_name = "" 256cpu_list = "" 257test_name = "" 258memory = "10240" 259graph_data_present = False; 260 261valid1 = False 262valid2 = False 263 264cpu_mask = zeros((MAX_CPUS,), dtype=int) 265 266 267try: 268 opts, args = getopt.getopt(sys.argv[1:],"ht:i:c:n:m:",["help","trace_file=","interval=","cpu=","name=","memory="]) 269except getopt.GetoptError: 270 ipt.print_help('amd_pstate') 271 sys.exit(2) 272for opt, arg in opts: 273 if opt == '-h': 274 print() 275 sys.exit() 276 elif opt in ("-t", "--trace_file"): 277 valid1 = True 278 location = os.path.realpath(os.path.join(os.getcwd(), os.path.dirname(__file__))) 279 file_name = os.path.join(location, arg) 280 elif opt in ("-i", "--interval"): 281 valid1 = True 282 interval = arg 283 elif opt in ("-c", "--cpu"): 284 cpu_list = arg 285 elif opt in ("-n", "--name"): 286 valid2 = True 287 test_name = arg 288 elif opt in ("-m", "--memory"): 289 memory = arg 290 291if not (valid1 and valid2): 292 ipt.print_help('amd_pstate') 293 sys.exit() 294 295if cpu_list: 296 for p in re.split("[,]", cpu_list): 297 if int(p) < MAX_CPUS : 298 cpu_mask[int(p)] = 1 299else: 300 for i in range (0, MAX_CPUS): 301 cpu_mask[i] = 1 302 303if not os.path.exists('results'): 304 os.mkdir('results') 305 ipt.fix_ownership('results') 306 307os.chdir('results') 308if os.path.exists(test_name): 309 print('The test name directory already exists. Please provide a unique test name. Test re-run not supported, yet.') 310 sys.exit() 311os.mkdir(test_name) 312ipt.fix_ownership(test_name) 313os.chdir(test_name) 314 315cur_version = sys.version_info 316print('python version (should be >= 2.7):') 317print(cur_version) 318 319cleanup_data_files() 320 321if interval: 322 file_name = "/sys/kernel/tracing/trace" 323 ipt.clear_trace_file() 324 ipt.set_trace_buffer_size(memory) 325 ipt.enable_trace(trace_file) 326 time.sleep(int(interval)) 327 ipt.disable_trace(trace_file) 328 329current_max_cpu = 0 330 331read_trace_data(file_name, cpu_mask) 332 333if interval: 334 ipt.clear_trace_file() 335 ipt.free_trace_buffer() 336 337if graph_data_present == False: 338 print('No valid data to plot') 339 sys.exit(2) 340 341for cpu_no in range(0, current_max_cpu + 1): 342 plot_per_cpu_freq(cpu_no) 343 plot_per_cpu_des_perf(cpu_no) 344 plot_per_cpu_load(cpu_no) 345 346plot_all_cpu_des_perf() 347plot_all_cpu_frequency() 348plot_all_cpu_load() 349 350for root, dirs, files in os.walk('.'): 351 for f in files: 352 ipt.fix_ownership(f) 353 354os.chdir('../../') 355