1#!/usr/bin/python 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 6intel_pstate driver. This utility can be used in two ways: 7- If there is Linux trace file with pstate_sample events enabled, then 8this utility can parse the trace file and generate performance plots. 9- If user has not specified a trace file as input via command line parameters, 10then this utility enables and collects trace data for a user specified interval 11and generates performance plots. 12 13Prerequisites: 14 Python version 2.7.x 15 gnuplot 5.0 or higher 16 gnuplot-py 1.8 17 (Most of the distributions have these required packages. They may be called 18 gnuplot-py, phython-gnuplot. ) 19 20 HWP (Hardware P-States are disabled) 21 Kernel config for Linux trace is enabled 22 23 see print_help(): for Usage and Output details 24 25""" 26from __future__ import print_function 27from datetime import datetime 28import subprocess 29import os 30import time 31import re 32import signal 33import sys 34import getopt 35import Gnuplot 36from numpy import * 37from decimal import * 38 39__author__ = "Srinivas Pandruvada" 40__copyright__ = " Copyright (c) 2017, Intel Corporation. " 41__license__ = "GPL version 2" 42 43 44MAX_CPUS = 256 45 46# Define the csv file columns 47C_COMM = 18 48C_GHZ = 17 49C_ELAPSED = 16 50C_SAMPLE = 15 51C_DURATION = 14 52C_LOAD = 13 53C_BOOST = 12 54C_FREQ = 11 55C_TSC = 10 56C_APERF = 9 57C_MPERF = 8 58C_TO = 7 59C_FROM = 6 60C_SCALED = 5 61C_CORE = 4 62C_USEC = 3 63C_SEC = 2 64C_CPU = 1 65 66global sample_num, last_sec_cpu, last_usec_cpu, start_time, testname 67 68# 11 digits covers uptime to 115 days 69getcontext().prec = 11 70 71sample_num =0 72last_sec_cpu = [0] * MAX_CPUS 73last_usec_cpu = [0] * MAX_CPUS 74 75def print_help(): 76 print('intel_pstate_tracer.py:') 77 print(' Usage:') 78 print(' If the trace file is available, then to simply parse and plot, use (sudo not required):') 79 print(' ./intel_pstate_tracer.py [-c cpus] -t <trace_file> -n <test_name>') 80 print(' Or') 81 print(' ./intel_pstate_tracer.py [--cpu cpus] ---trace_file <trace_file> --name <test_name>') 82 print(' To generate trace file, parse and plot, use (sudo required):') 83 print(' sudo ./intel_pstate_tracer.py [-c cpus] -i <interval> -n <test_name> -m <kbytes>') 84 print(' Or') 85 print(' sudo ./intel_pstate_tracer.py [--cpu cpus] --interval <interval> --name <test_name> --memory <kbytes>') 86 print(' Optional argument:') 87 print(' cpus: comma separated list of CPUs') 88 print(' kbytes: Kilo bytes of memory per CPU to allocate to the trace buffer. Default: 10240') 89 print(' Output:') 90 print(' If not already present, creates a "results/test_name" folder in the current working directory with:') 91 print(' cpu.csv - comma seperated values file with trace contents and some additional calculations.') 92 print(' cpu???.csv - comma seperated values file for CPU number ???.') 93 print(' *.png - a variety of PNG format plot files created from the trace contents and the additional calculations.') 94 print(' Notes:') 95 print(' Avoid the use of _ (underscore) in test names, because in gnuplot it is a subscript directive.') 96 print(' Maximum number of CPUs is {0:d}. If there are more the script will abort with an error.'.format(MAX_CPUS)) 97 print(' Off-line CPUs cause the script to list some warnings, and create some empty files. Use the CPU mask feature for a clean run.') 98 print(' Empty y range warnings for autoscaled plots can occur and can be ignored.') 99 100def plot_perf_busy_with_sample(cpu_index): 101 """ Plot method to per cpu information """ 102 103 file_name = 'cpu{:0>3}.csv'.format(cpu_index) 104 if os.path.exists(file_name): 105 output_png = "cpu%03d_perf_busy_vs_samples.png" % cpu_index 106 g_plot = common_all_gnuplot_settings(output_png) 107 g_plot('set yrange [0:40]') 108 g_plot('set y2range [0:200]') 109 g_plot('set y2tics 0, 10') 110 g_plot('set title "{} : cpu perf busy vs. sample : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now())) 111# Override common 112 g_plot('set xlabel "Samples"') 113 g_plot('set ylabel "P-State"') 114 g_plot('set y2label "Scaled Busy/performance/io-busy(%)"') 115 set_4_plot_linestyles(g_plot) 116 g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y2 title "performance",\\'.format(C_SAMPLE, C_CORE)) 117 g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 2 axis x1y2 title "scaled-busy",\\'.format(C_SAMPLE, C_SCALED)) 118 g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 3 axis x1y2 title "io-boost",\\'.format(C_SAMPLE, C_BOOST)) 119 g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 4 axis x1y1 title "P-State"'.format(C_SAMPLE, C_TO)) 120 121def plot_perf_busy(cpu_index): 122 """ Plot some per cpu information """ 123 124 file_name = 'cpu{:0>3}.csv'.format(cpu_index) 125 if os.path.exists(file_name): 126 output_png = "cpu%03d_perf_busy.png" % cpu_index 127 g_plot = common_all_gnuplot_settings(output_png) 128 g_plot('set yrange [0:40]') 129 g_plot('set y2range [0:200]') 130 g_plot('set y2tics 0, 10') 131 g_plot('set title "{} : perf busy : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now())) 132 g_plot('set ylabel "P-State"') 133 g_plot('set y2label "Scaled Busy/performance/io-busy(%)"') 134 set_4_plot_linestyles(g_plot) 135 g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y2 title "performance",\\'.format(C_ELAPSED, C_CORE)) 136 g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 2 axis x1y2 title "scaled-busy",\\'.format(C_ELAPSED, C_SCALED)) 137 g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 3 axis x1y2 title "io-boost",\\'.format(C_ELAPSED, C_BOOST)) 138 g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 4 axis x1y1 title "P-State"'.format(C_ELAPSED, C_TO)) 139 140def plot_durations(cpu_index): 141 """ Plot per cpu durations """ 142 143 file_name = 'cpu{:0>3}.csv'.format(cpu_index) 144 if os.path.exists(file_name): 145 output_png = "cpu%03d_durations.png" % cpu_index 146 g_plot = common_all_gnuplot_settings(output_png) 147# Should autoscale be used here? Should seconds be used here? 148 g_plot('set yrange [0:5000]') 149 g_plot('set ytics 0, 500') 150 g_plot('set title "{} : durations : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now())) 151 g_plot('set ylabel "Timer Duration (MilliSeconds)"') 152# override common 153 g_plot('set key off') 154 set_4_plot_linestyles(g_plot) 155 g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y1'.format(C_ELAPSED, C_DURATION)) 156 157def plot_loads(cpu_index): 158 """ Plot per cpu loads """ 159 160 file_name = 'cpu{:0>3}.csv'.format(cpu_index) 161 if os.path.exists(file_name): 162 output_png = "cpu%03d_loads.png" % cpu_index 163 g_plot = common_all_gnuplot_settings(output_png) 164 g_plot('set yrange [0:100]') 165 g_plot('set ytics 0, 10') 166 g_plot('set title "{} : loads : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now())) 167 g_plot('set ylabel "CPU load (percent)"') 168# override common 169 g_plot('set key off') 170 set_4_plot_linestyles(g_plot) 171 g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y1'.format(C_ELAPSED, C_LOAD)) 172 173def plot_pstate_cpu_with_sample(): 174 """ Plot all cpu information """ 175 176 if os.path.exists('cpu.csv'): 177 output_png = 'all_cpu_pstates_vs_samples.png' 178 g_plot = common_all_gnuplot_settings(output_png) 179 g_plot('set yrange [0:40]') 180# override common 181 g_plot('set xlabel "Samples"') 182 g_plot('set ylabel "P-State"') 183 g_plot('set title "{} : cpu pstate vs. sample : {:%F %H:%M}"'.format(testname, datetime.now())) 184 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).replace('\n', ' ') 185 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_SAMPLE, C_TO) 186 g_plot('title_list = "{}"'.format(title_list)) 187 g_plot(plot_str) 188 189def plot_pstate_cpu(): 190 """ Plot all cpu information from csv files """ 191 192 output_png = 'all_cpu_pstates.png' 193 g_plot = common_all_gnuplot_settings(output_png) 194 g_plot('set yrange [0:40]') 195 g_plot('set ylabel "P-State"') 196 g_plot('set title "{} : cpu pstates : {:%F %H:%M}"'.format(testname, datetime.now())) 197 198# the following command is really cool, but doesn't work with the CPU masking option because it aborts on the first missing file. 199# plot_str = 'plot for [i=0:*] file=sprintf("cpu%03d.csv",i) title_s=sprintf("cpu%03d",i) file using 16:7 pt 7 ps 1 title title_s' 200# 201 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).replace('\n', ' ') 202 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_TO) 203 g_plot('title_list = "{}"'.format(title_list)) 204 g_plot(plot_str) 205 206def plot_load_cpu(): 207 """ Plot all cpu loads """ 208 209 output_png = 'all_cpu_loads.png' 210 g_plot = common_all_gnuplot_settings(output_png) 211 g_plot('set yrange [0:100]') 212 g_plot('set ylabel "CPU load (percent)"') 213 g_plot('set title "{} : cpu loads : {:%F %H:%M}"'.format(testname, datetime.now())) 214 215 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).replace('\n', ' ') 216 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_LOAD) 217 g_plot('title_list = "{}"'.format(title_list)) 218 g_plot(plot_str) 219 220def plot_frequency_cpu(): 221 """ Plot all cpu frequencies """ 222 223 output_png = 'all_cpu_frequencies.png' 224 g_plot = common_all_gnuplot_settings(output_png) 225 g_plot('set yrange [0:4]') 226 g_plot('set ylabel "CPU Frequency (GHz)"') 227 g_plot('set title "{} : cpu frequencies : {:%F %H:%M}"'.format(testname, datetime.now())) 228 229 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).replace('\n', ' ') 230 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_FREQ) 231 g_plot('title_list = "{}"'.format(title_list)) 232 g_plot(plot_str) 233 234def plot_duration_cpu(): 235 """ Plot all cpu durations """ 236 237 output_png = 'all_cpu_durations.png' 238 g_plot = common_all_gnuplot_settings(output_png) 239 g_plot('set yrange [0:5000]') 240 g_plot('set ytics 0, 500') 241 g_plot('set ylabel "Timer Duration (MilliSeconds)"') 242 g_plot('set title "{} : cpu durations : {:%F %H:%M}"'.format(testname, datetime.now())) 243 244 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).replace('\n', ' ') 245 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_DURATION) 246 g_plot('title_list = "{}"'.format(title_list)) 247 g_plot(plot_str) 248 249def plot_scaled_cpu(): 250 """ Plot all cpu scaled busy """ 251 252 output_png = 'all_cpu_scaled.png' 253 g_plot = common_all_gnuplot_settings(output_png) 254# autoscale this one, no set y range 255 g_plot('set ylabel "Scaled Busy (Unitless)"') 256 g_plot('set title "{} : cpu scaled busy : {:%F %H:%M}"'.format(testname, datetime.now())) 257 258 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).replace('\n', ' ') 259 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_SCALED) 260 g_plot('title_list = "{}"'.format(title_list)) 261 g_plot(plot_str) 262 263def plot_boost_cpu(): 264 """ Plot all cpu IO Boosts """ 265 266 output_png = 'all_cpu_boost.png' 267 g_plot = common_all_gnuplot_settings(output_png) 268 g_plot('set yrange [0:100]') 269 g_plot('set ylabel "CPU IO Boost (percent)"') 270 g_plot('set title "{} : cpu io boost : {:%F %H:%M}"'.format(testname, datetime.now())) 271 272 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).replace('\n', ' ') 273 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_BOOST) 274 g_plot('title_list = "{}"'.format(title_list)) 275 g_plot(plot_str) 276 277def plot_ghz_cpu(): 278 """ Plot all cpu tsc ghz """ 279 280 output_png = 'all_cpu_ghz.png' 281 g_plot = common_all_gnuplot_settings(output_png) 282# autoscale this one, no set y range 283 g_plot('set ylabel "TSC Frequency (GHz)"') 284 g_plot('set title "{} : cpu TSC Frequencies (Sanity check calculation) : {:%F %H:%M}"'.format(testname, datetime.now())) 285 286 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).replace('\n', ' ') 287 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_GHZ) 288 g_plot('title_list = "{}"'.format(title_list)) 289 g_plot(plot_str) 290 291def common_all_gnuplot_settings(output_png): 292 """ common gnuplot settings for multiple CPUs one one graph. """ 293 294 g_plot = common_gnuplot_settings() 295 g_plot('set output "' + output_png + '"') 296 return(g_plot) 297 298def common_gnuplot_settings(): 299 """ common gnuplot settings. """ 300 301 g_plot = Gnuplot.Gnuplot(persist=1) 302# The following line is for rigor only. It seems to be assumed for .csv files 303 g_plot('set datafile separator \",\"') 304 g_plot('set ytics nomirror') 305 g_plot('set xtics nomirror') 306 g_plot('set xtics font ", 10"') 307 g_plot('set ytics font ", 10"') 308 g_plot('set tics out scale 1.0') 309 g_plot('set grid') 310 g_plot('set key out horiz') 311 g_plot('set key bot center') 312 g_plot('set key samplen 2 spacing .8 font ", 9"') 313 g_plot('set term png size 1200, 600') 314 g_plot('set title font ", 11"') 315 g_plot('set ylabel font ", 10"') 316 g_plot('set xlabel font ", 10"') 317 g_plot('set xlabel offset 0, 0.5') 318 g_plot('set xlabel "Elapsed Time (Seconds)"') 319 return(g_plot) 320 321def set_4_plot_linestyles(g_plot): 322 """ set the linestyles used for 4 plots in 1 graphs. """ 323 324 g_plot('set style line 1 linetype 1 linecolor rgb "green" pointtype -1') 325 g_plot('set style line 2 linetype 1 linecolor rgb "red" pointtype -1') 326 g_plot('set style line 3 linetype 1 linecolor rgb "purple" pointtype -1') 327 g_plot('set style line 4 linetype 1 linecolor rgb "blue" pointtype -1') 328 329def store_csv(cpu_int, time_pre_dec, time_post_dec, core_busy, scaled, _from, _to, mperf, aperf, tsc, freq_ghz, io_boost, common_comm, load, duration_ms, sample_num, elapsed_time, tsc_ghz): 330 """ Store master csv file information """ 331 332 global graph_data_present 333 334 if cpu_mask[cpu_int] == 0: 335 return 336 337 try: 338 f_handle = open('cpu.csv', 'a') 339 string_buffer = "CPU_%03u, %05u, %06u, %u, %u, %u, %u, %u, %u, %u, %.4f, %u, %.2f, %.3f, %u, %.3f, %.3f, %s\n" % (cpu_int, int(time_pre_dec), int(time_post_dec), int(core_busy), int(scaled), int(_from), int(_to), int(mperf), int(aperf), int(tsc), freq_ghz, int(io_boost), load, duration_ms, sample_num, elapsed_time, tsc_ghz, common_comm) 340 f_handle.write(string_buffer); 341 f_handle.close() 342 except: 343 print('IO error cpu.csv') 344 return 345 346 graph_data_present = True; 347 348def split_csv(): 349 """ seperate the all csv file into per CPU csv files. """ 350 351 global current_max_cpu 352 353 if os.path.exists('cpu.csv'): 354 for index in range(0, current_max_cpu + 1): 355 if cpu_mask[int(index)] != 0: 356 os.system('grep -m 1 common_cpu cpu.csv > cpu{:0>3}.csv'.format(index)) 357 os.system('grep CPU_{:0>3} cpu.csv >> cpu{:0>3}.csv'.format(index, index)) 358 359def fix_ownership(path): 360 """Change the owner of the file to SUDO_UID, if required""" 361 362 uid = os.environ.get('SUDO_UID') 363 gid = os.environ.get('SUDO_GID') 364 if uid is not None: 365 os.chown(path, int(uid), int(gid)) 366 367def cleanup_data_files(): 368 """ clean up existing data files """ 369 370 if os.path.exists('cpu.csv'): 371 os.remove('cpu.csv') 372 f_handle = open('cpu.csv', 'a') 373 f_handle.write('common_cpu, common_secs, common_usecs, core_busy, scaled_busy, from, to, mperf, aperf, tsc, freq, boost, load, duration_ms, sample_num, elapsed_time, tsc_ghz, common_comm') 374 f_handle.write('\n') 375 f_handle.close() 376 377def clear_trace_file(): 378 """ Clear trace file """ 379 380 try: 381 f_handle = open('/sys/kernel/debug/tracing/trace', 'w') 382 f_handle.close() 383 except: 384 print('IO error clearing trace file ') 385 sys.exit(2) 386 387def enable_trace(): 388 """ Enable trace """ 389 390 try: 391 open('/sys/kernel/debug/tracing/events/power/pstate_sample/enable' 392 , 'w').write("1") 393 except: 394 print('IO error enabling trace ') 395 sys.exit(2) 396 397def disable_trace(): 398 """ Disable trace """ 399 400 try: 401 open('/sys/kernel/debug/tracing/events/power/pstate_sample/enable' 402 , 'w').write("0") 403 except: 404 print('IO error disabling trace ') 405 sys.exit(2) 406 407def set_trace_buffer_size(): 408 """ Set trace buffer size """ 409 410 try: 411 with open('/sys/kernel/debug/tracing/buffer_size_kb', 'w') as fp: 412 fp.write(memory) 413 except: 414 print('IO error setting trace buffer size ') 415 sys.exit(2) 416 417def free_trace_buffer(): 418 """ Free the trace buffer memory """ 419 420 try: 421 open('/sys/kernel/debug/tracing/buffer_size_kb' 422 , 'w').write("1") 423 except: 424 print('IO error freeing trace buffer ') 425 sys.exit(2) 426 427def read_trace_data(filename): 428 """ Read and parse trace data """ 429 430 global current_max_cpu 431 global sample_num, last_sec_cpu, last_usec_cpu, start_time 432 433 try: 434 data = open(filename, 'r').read() 435 except: 436 print('Error opening ', filename) 437 sys.exit(2) 438 439 for line in data.splitlines(): 440 search_obj = \ 441 re.search(r'(^(.*?)\[)((\d+)[^\]])(.*?)(\d+)([.])(\d+)(.*?core_busy=)(\d+)(.*?scaled=)(\d+)(.*?from=)(\d+)(.*?to=)(\d+)(.*?mperf=)(\d+)(.*?aperf=)(\d+)(.*?tsc=)(\d+)(.*?freq=)(\d+)' 442 , line) 443 444 if search_obj: 445 cpu = search_obj.group(3) 446 cpu_int = int(cpu) 447 cpu = str(cpu_int) 448 449 time_pre_dec = search_obj.group(6) 450 time_post_dec = search_obj.group(8) 451 core_busy = search_obj.group(10) 452 scaled = search_obj.group(12) 453 _from = search_obj.group(14) 454 _to = search_obj.group(16) 455 mperf = search_obj.group(18) 456 aperf = search_obj.group(20) 457 tsc = search_obj.group(22) 458 freq = search_obj.group(24) 459 common_comm = search_obj.group(2).replace(' ', '') 460 461 # Not all kernel versions have io_boost field 462 io_boost = '0' 463 search_obj = re.search(r'.*?io_boost=(\d+)', line) 464 if search_obj: 465 io_boost = search_obj.group(1) 466 467 if sample_num == 0 : 468 start_time = Decimal(time_pre_dec) + Decimal(time_post_dec) / Decimal(1000000) 469 sample_num += 1 470 471 if last_sec_cpu[cpu_int] == 0 : 472 last_sec_cpu[cpu_int] = time_pre_dec 473 last_usec_cpu[cpu_int] = time_post_dec 474 else : 475 duration_us = (int(time_pre_dec) - int(last_sec_cpu[cpu_int])) * 1000000 + (int(time_post_dec) - int(last_usec_cpu[cpu_int])) 476 duration_ms = Decimal(duration_us) / Decimal(1000) 477 last_sec_cpu[cpu_int] = time_pre_dec 478 last_usec_cpu[cpu_int] = time_post_dec 479 elapsed_time = Decimal(time_pre_dec) + Decimal(time_post_dec) / Decimal(1000000) - start_time 480 load = Decimal(int(mperf)*100)/ Decimal(tsc) 481 freq_ghz = Decimal(freq)/Decimal(1000000) 482# Sanity check calculation, typically anomalies indicate missed samples 483# However, check for 0 (should never occur) 484 tsc_ghz = Decimal(0) 485 if duration_ms != Decimal(0) : 486 tsc_ghz = Decimal(tsc)/duration_ms/Decimal(1000000) 487 store_csv(cpu_int, time_pre_dec, time_post_dec, core_busy, scaled, _from, _to, mperf, aperf, tsc, freq_ghz, io_boost, common_comm, load, duration_ms, sample_num, elapsed_time, tsc_ghz) 488 489 if cpu_int > current_max_cpu: 490 current_max_cpu = cpu_int 491# End of for each trace line loop 492# Now seperate the main overall csv file into per CPU csv files. 493 split_csv() 494 495def signal_handler(signal, frame): 496 print(' SIGINT: Forcing cleanup before exit.') 497 if interval: 498 disable_trace() 499 clear_trace_file() 500 # Free the memory 501 free_trace_buffer() 502 sys.exit(0) 503 504signal.signal(signal.SIGINT, signal_handler) 505 506interval = "" 507filename = "" 508cpu_list = "" 509testname = "" 510memory = "10240" 511graph_data_present = False; 512 513valid1 = False 514valid2 = False 515 516cpu_mask = zeros((MAX_CPUS,), dtype=int) 517 518try: 519 opts, args = getopt.getopt(sys.argv[1:],"ht:i:c:n:m:",["help","trace_file=","interval=","cpu=","name=","memory="]) 520except getopt.GetoptError: 521 print_help() 522 sys.exit(2) 523for opt, arg in opts: 524 if opt == '-h': 525 print() 526 sys.exit() 527 elif opt in ("-t", "--trace_file"): 528 valid1 = True 529 location = os.path.realpath(os.path.join(os.getcwd(), os.path.dirname(__file__))) 530 filename = os.path.join(location, arg) 531 elif opt in ("-i", "--interval"): 532 valid1 = True 533 interval = arg 534 elif opt in ("-c", "--cpu"): 535 cpu_list = arg 536 elif opt in ("-n", "--name"): 537 valid2 = True 538 testname = arg 539 elif opt in ("-m", "--memory"): 540 memory = arg 541 542if not (valid1 and valid2): 543 print_help() 544 sys.exit() 545 546if cpu_list: 547 for p in re.split("[,]", cpu_list): 548 if int(p) < MAX_CPUS : 549 cpu_mask[int(p)] = 1 550else: 551 for i in range (0, MAX_CPUS): 552 cpu_mask[i] = 1 553 554if not os.path.exists('results'): 555 os.mkdir('results') 556 # The regular user needs to own the directory, not root. 557 fix_ownership('results') 558 559os.chdir('results') 560if os.path.exists(testname): 561 print('The test name directory already exists. Please provide a unique test name. Test re-run not supported, yet.') 562 sys.exit() 563os.mkdir(testname) 564# The regular user needs to own the directory, not root. 565fix_ownership(testname) 566os.chdir(testname) 567 568# Temporary (or perhaps not) 569cur_version = sys.version_info 570print('python version (should be >= 2.7):') 571print(cur_version) 572 573# Left as "cleanup" for potential future re-run ability. 574cleanup_data_files() 575 576if interval: 577 filename = "/sys/kernel/debug/tracing/trace" 578 clear_trace_file() 579 set_trace_buffer_size() 580 enable_trace() 581 print('Sleeping for ', interval, 'seconds') 582 time.sleep(int(interval)) 583 disable_trace() 584 585current_max_cpu = 0 586 587read_trace_data(filename) 588 589if interval: 590 clear_trace_file() 591 # Free the memory 592 free_trace_buffer() 593 594if graph_data_present == False: 595 print('No valid data to plot') 596 sys.exit(2) 597 598for cpu_no in range(0, current_max_cpu + 1): 599 plot_perf_busy_with_sample(cpu_no) 600 plot_perf_busy(cpu_no) 601 plot_durations(cpu_no) 602 plot_loads(cpu_no) 603 604plot_pstate_cpu_with_sample() 605plot_pstate_cpu() 606plot_load_cpu() 607plot_frequency_cpu() 608plot_duration_cpu() 609plot_scaled_cpu() 610plot_boost_cpu() 611plot_ghz_cpu() 612 613# It is preferrable, but not necessary, that the regular user owns the files, not root. 614for root, dirs, files in os.walk('.'): 615 for f in files: 616 fix_ownership(f) 617 618os.chdir('../../') 619