1#!/usr/bin/env 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 or higher 15 gnuplot 5.0 or higher 16 gnuplot-py 1.8 or higher 17 (Most of the distributions have these required packages. They may be called 18 gnuplot-py, phython-gnuplot or phython3-gnuplot, gnuplot-nox, ... ) 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, trace_file 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(driver_name): 76 print('%s_tracer.py:'%driver_name) 77 print(' Usage:') 78 print(' If the trace file is available, then to simply parse and plot, use (sudo not required):') 79 print(' ./%s_tracer.py [-c cpus] -t <trace_file> -n <test_name>'%driver_name) 80 print(' Or') 81 print(' ./%s_tracer.py [--cpu cpus] ---trace_file <trace_file> --name <test_name>'%driver_name) 82 print(' To generate trace file, parse and plot, use (sudo required):') 83 print(' sudo ./%s_tracer.py [-c cpus] -i <interval> -n <test_name> -m <kbytes>'%driver_name) 84 print(' Or') 85 print(' sudo ./%s_tracer.py [--cpu cpus] --interval <interval> --name <test_name> --memory <kbytes>'%driver_name) 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# autoscale this one, no set y1 range 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# autoscale this one, no set y1 range 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# autoscale this one, no set y range 148 g_plot('set title "{} : durations : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now())) 149 g_plot('set ylabel "Timer Duration (MilliSeconds)"') 150# override common 151 g_plot('set key off') 152 set_4_plot_linestyles(g_plot) 153 g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y1'.format(C_ELAPSED, C_DURATION)) 154 155def plot_loads(cpu_index): 156 """ Plot per cpu loads """ 157 158 file_name = 'cpu{:0>3}.csv'.format(cpu_index) 159 if os.path.exists(file_name): 160 output_png = "cpu%03d_loads.png" % cpu_index 161 g_plot = common_all_gnuplot_settings(output_png) 162 g_plot('set yrange [0:100]') 163 g_plot('set ytics 0, 10') 164 g_plot('set title "{} : loads : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now())) 165 g_plot('set ylabel "CPU load (percent)"') 166# override common 167 g_plot('set key off') 168 set_4_plot_linestyles(g_plot) 169 g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y1'.format(C_ELAPSED, C_LOAD)) 170 171def plot_pstate_cpu_with_sample(): 172 """ Plot all cpu information """ 173 174 if os.path.exists('cpu.csv'): 175 output_png = 'all_cpu_pstates_vs_samples.png' 176 g_plot = common_all_gnuplot_settings(output_png) 177# autoscale this one, no set y range 178# override common 179 g_plot('set xlabel "Samples"') 180 g_plot('set ylabel "P-State"') 181 g_plot('set title "{} : cpu pstate vs. sample : {:%F %H:%M}"'.format(testname, datetime.now())) 182 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') 183 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_SAMPLE, C_TO) 184 g_plot('title_list = "{}"'.format(title_list)) 185 g_plot(plot_str) 186 187def plot_pstate_cpu(): 188 """ Plot all cpu information from csv files """ 189 190 output_png = 'all_cpu_pstates.png' 191 g_plot = common_all_gnuplot_settings(output_png) 192# autoscale this one, no set y range 193 g_plot('set ylabel "P-State"') 194 g_plot('set title "{} : cpu pstates : {:%F %H:%M}"'.format(testname, datetime.now())) 195 196# the following command is really cool, but doesn't work with the CPU masking option because it aborts on the first missing file. 197# 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' 198# 199 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') 200 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_TO) 201 g_plot('title_list = "{}"'.format(title_list)) 202 g_plot(plot_str) 203 204def plot_load_cpu(): 205 """ Plot all cpu loads """ 206 207 output_png = 'all_cpu_loads.png' 208 g_plot = common_all_gnuplot_settings(output_png) 209 g_plot('set yrange [0:100]') 210 g_plot('set ylabel "CPU load (percent)"') 211 g_plot('set title "{} : cpu loads : {:%F %H:%M}"'.format(testname, datetime.now())) 212 213 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') 214 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_LOAD) 215 g_plot('title_list = "{}"'.format(title_list)) 216 g_plot(plot_str) 217 218def plot_frequency_cpu(): 219 """ Plot all cpu frequencies """ 220 221 output_png = 'all_cpu_frequencies.png' 222 g_plot = common_all_gnuplot_settings(output_png) 223# autoscale this one, no set y range 224 g_plot('set ylabel "CPU Frequency (GHz)"') 225 g_plot('set title "{} : cpu frequencies : {:%F %H:%M}"'.format(testname, datetime.now())) 226 227 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') 228 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_FREQ) 229 g_plot('title_list = "{}"'.format(title_list)) 230 g_plot(plot_str) 231 232def plot_duration_cpu(): 233 """ Plot all cpu durations """ 234 235 output_png = 'all_cpu_durations.png' 236 g_plot = common_all_gnuplot_settings(output_png) 237# autoscale this one, no set y range 238 g_plot('set ylabel "Timer Duration (MilliSeconds)"') 239 g_plot('set title "{} : cpu durations : {:%F %H:%M}"'.format(testname, datetime.now())) 240 241 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') 242 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_DURATION) 243 g_plot('title_list = "{}"'.format(title_list)) 244 g_plot(plot_str) 245 246def plot_scaled_cpu(): 247 """ Plot all cpu scaled busy """ 248 249 output_png = 'all_cpu_scaled.png' 250 g_plot = common_all_gnuplot_settings(output_png) 251# autoscale this one, no set y range 252 g_plot('set ylabel "Scaled Busy (Unitless)"') 253 g_plot('set title "{} : cpu scaled busy : {:%F %H:%M}"'.format(testname, datetime.now())) 254 255 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') 256 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_SCALED) 257 g_plot('title_list = "{}"'.format(title_list)) 258 g_plot(plot_str) 259 260def plot_boost_cpu(): 261 """ Plot all cpu IO Boosts """ 262 263 output_png = 'all_cpu_boost.png' 264 g_plot = common_all_gnuplot_settings(output_png) 265 g_plot('set yrange [0:100]') 266 g_plot('set ylabel "CPU IO Boost (percent)"') 267 g_plot('set title "{} : cpu io boost : {:%F %H:%M}"'.format(testname, datetime.now())) 268 269 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') 270 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_BOOST) 271 g_plot('title_list = "{}"'.format(title_list)) 272 g_plot(plot_str) 273 274def plot_ghz_cpu(): 275 """ Plot all cpu tsc ghz """ 276 277 output_png = 'all_cpu_ghz.png' 278 g_plot = common_all_gnuplot_settings(output_png) 279# autoscale this one, no set y range 280 g_plot('set ylabel "TSC Frequency (GHz)"') 281 g_plot('set title "{} : cpu TSC Frequencies (Sanity check calculation) : {:%F %H:%M}"'.format(testname, datetime.now())) 282 283 title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') 284 plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_GHZ) 285 g_plot('title_list = "{}"'.format(title_list)) 286 g_plot(plot_str) 287 288def common_all_gnuplot_settings(output_png): 289 """ common gnuplot settings for multiple CPUs one one graph. """ 290 291 g_plot = common_gnuplot_settings() 292 g_plot('set output "' + output_png + '"') 293 return(g_plot) 294 295def common_gnuplot_settings(): 296 """ common gnuplot settings. """ 297 298 g_plot = Gnuplot.Gnuplot(persist=1) 299# The following line is for rigor only. It seems to be assumed for .csv files 300 g_plot('set datafile separator \",\"') 301 g_plot('set ytics nomirror') 302 g_plot('set xtics nomirror') 303 g_plot('set xtics font ", 10"') 304 g_plot('set ytics font ", 10"') 305 g_plot('set tics out scale 1.0') 306 g_plot('set grid') 307 g_plot('set key out horiz') 308 g_plot('set key bot center') 309 g_plot('set key samplen 2 spacing .8 font ", 9"') 310 g_plot('set term png size 1200, 600') 311 g_plot('set title font ", 11"') 312 g_plot('set ylabel font ", 10"') 313 g_plot('set xlabel font ", 10"') 314 g_plot('set xlabel offset 0, 0.5') 315 g_plot('set xlabel "Elapsed Time (Seconds)"') 316 return(g_plot) 317 318def set_4_plot_linestyles(g_plot): 319 """ set the linestyles used for 4 plots in 1 graphs. """ 320 321 g_plot('set style line 1 linetype 1 linecolor rgb "green" pointtype -1') 322 g_plot('set style line 2 linetype 1 linecolor rgb "red" pointtype -1') 323 g_plot('set style line 3 linetype 1 linecolor rgb "purple" pointtype -1') 324 g_plot('set style line 4 linetype 1 linecolor rgb "blue" pointtype -1') 325 326def 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, cpu_mask): 327 """ Store master csv file information """ 328 329 global graph_data_present 330 331 if cpu_mask[cpu_int] == 0: 332 return 333 334 try: 335 f_handle = open('cpu.csv', 'a') 336 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) 337 f_handle.write(string_buffer); 338 f_handle.close() 339 except: 340 print('IO error cpu.csv') 341 return 342 343 graph_data_present = True; 344 345def split_csv(current_max_cpu, cpu_mask): 346 """ seperate the all csv file into per CPU csv files. """ 347 348 if os.path.exists('cpu.csv'): 349 for index in range(0, current_max_cpu + 1): 350 if cpu_mask[int(index)] != 0: 351 os.system('grep -m 1 common_cpu cpu.csv > cpu{:0>3}.csv'.format(index)) 352 os.system('grep CPU_{:0>3} cpu.csv >> cpu{:0>3}.csv'.format(index, index)) 353 354def fix_ownership(path): 355 """Change the owner of the file to SUDO_UID, if required""" 356 357 uid = os.environ.get('SUDO_UID') 358 gid = os.environ.get('SUDO_GID') 359 if uid is not None: 360 os.chown(path, int(uid), int(gid)) 361 362def cleanup_data_files(): 363 """ clean up existing data files """ 364 365 if os.path.exists('cpu.csv'): 366 os.remove('cpu.csv') 367 f_handle = open('cpu.csv', 'a') 368 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') 369 f_handle.write('\n') 370 f_handle.close() 371 372def clear_trace_file(): 373 """ Clear trace file """ 374 375 try: 376 f_handle = open('/sys/kernel/debug/tracing/trace', 'w') 377 f_handle.close() 378 except: 379 print('IO error clearing trace file ') 380 sys.exit(2) 381 382def enable_trace(trace_file): 383 """ Enable trace """ 384 385 try: 386 open(trace_file,'w').write("1") 387 except: 388 print('IO error enabling trace ') 389 sys.exit(2) 390 391def disable_trace(trace_file): 392 """ Disable trace """ 393 394 try: 395 open(trace_file, 'w').write("0") 396 except: 397 print('IO error disabling trace ') 398 sys.exit(2) 399 400def set_trace_buffer_size(memory): 401 """ Set trace buffer size """ 402 403 try: 404 with open('/sys/kernel/debug/tracing/buffer_size_kb', 'w') as fp: 405 fp.write(memory) 406 except: 407 print('IO error setting trace buffer size ') 408 sys.exit(2) 409 410def free_trace_buffer(): 411 """ Free the trace buffer memory """ 412 413 try: 414 open('/sys/kernel/debug/tracing/buffer_size_kb' 415 , 'w').write("1") 416 except: 417 print('IO error freeing trace buffer ') 418 sys.exit(2) 419 420def read_trace_data(filename, cpu_mask): 421 """ Read and parse trace data """ 422 423 global current_max_cpu 424 global sample_num, last_sec_cpu, last_usec_cpu, start_time 425 426 try: 427 data = open(filename, 'r').read() 428 except: 429 print('Error opening ', filename) 430 sys.exit(2) 431 432 for line in data.splitlines(): 433 search_obj = \ 434 re.search(r'(^(.*?)\[)((\d+)[^\]])(.*?)(\d+)([.])(\d+)(.*?core_busy=)(\d+)(.*?scaled=)(\d+)(.*?from=)(\d+)(.*?to=)(\d+)(.*?mperf=)(\d+)(.*?aperf=)(\d+)(.*?tsc=)(\d+)(.*?freq=)(\d+)' 435 , line) 436 437 if search_obj: 438 cpu = search_obj.group(3) 439 cpu_int = int(cpu) 440 cpu = str(cpu_int) 441 442 time_pre_dec = search_obj.group(6) 443 time_post_dec = search_obj.group(8) 444 core_busy = search_obj.group(10) 445 scaled = search_obj.group(12) 446 _from = search_obj.group(14) 447 _to = search_obj.group(16) 448 mperf = search_obj.group(18) 449 aperf = search_obj.group(20) 450 tsc = search_obj.group(22) 451 freq = search_obj.group(24) 452 common_comm = search_obj.group(2).replace(' ', '') 453 454 # Not all kernel versions have io_boost field 455 io_boost = '0' 456 search_obj = re.search(r'.*?io_boost=(\d+)', line) 457 if search_obj: 458 io_boost = search_obj.group(1) 459 460 if sample_num == 0 : 461 start_time = Decimal(time_pre_dec) + Decimal(time_post_dec) / Decimal(1000000) 462 sample_num += 1 463 464 if last_sec_cpu[cpu_int] == 0 : 465 last_sec_cpu[cpu_int] = time_pre_dec 466 last_usec_cpu[cpu_int] = time_post_dec 467 else : 468 duration_us = (int(time_pre_dec) - int(last_sec_cpu[cpu_int])) * 1000000 + (int(time_post_dec) - int(last_usec_cpu[cpu_int])) 469 duration_ms = Decimal(duration_us) / Decimal(1000) 470 last_sec_cpu[cpu_int] = time_pre_dec 471 last_usec_cpu[cpu_int] = time_post_dec 472 elapsed_time = Decimal(time_pre_dec) + Decimal(time_post_dec) / Decimal(1000000) - start_time 473 load = Decimal(int(mperf)*100)/ Decimal(tsc) 474 freq_ghz = Decimal(freq)/Decimal(1000000) 475# Sanity check calculation, typically anomalies indicate missed samples 476# However, check for 0 (should never occur) 477 tsc_ghz = Decimal(0) 478 if duration_ms != Decimal(0) : 479 tsc_ghz = Decimal(tsc)/duration_ms/Decimal(1000000) 480 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, cpu_mask) 481 482 if cpu_int > current_max_cpu: 483 current_max_cpu = cpu_int 484# End of for each trace line loop 485# Now seperate the main overall csv file into per CPU csv files. 486 split_csv(current_max_cpu, cpu_mask) 487 488def signal_handler(signal, frame): 489 print(' SIGINT: Forcing cleanup before exit.') 490 if interval: 491 disable_trace(trace_file) 492 clear_trace_file() 493 # Free the memory 494 free_trace_buffer() 495 sys.exit(0) 496 497if __name__ == "__main__": 498 trace_file = "/sys/kernel/debug/tracing/events/power/pstate_sample/enable" 499 signal.signal(signal.SIGINT, signal_handler) 500 501 interval = "" 502 filename = "" 503 cpu_list = "" 504 testname = "" 505 memory = "10240" 506 graph_data_present = False; 507 508 valid1 = False 509 valid2 = False 510 511 cpu_mask = zeros((MAX_CPUS,), dtype=int) 512 513 try: 514 opts, args = getopt.getopt(sys.argv[1:],"ht:i:c:n:m:",["help","trace_file=","interval=","cpu=","name=","memory="]) 515 except getopt.GetoptError: 516 print_help('intel_pstate') 517 sys.exit(2) 518 for opt, arg in opts: 519 if opt == '-h': 520 print_help('intel_pstate') 521 sys.exit() 522 elif opt in ("-t", "--trace_file"): 523 valid1 = True 524 location = os.path.realpath(os.path.join(os.getcwd(), os.path.dirname(__file__))) 525 filename = os.path.join(location, arg) 526 elif opt in ("-i", "--interval"): 527 valid1 = True 528 interval = arg 529 elif opt in ("-c", "--cpu"): 530 cpu_list = arg 531 elif opt in ("-n", "--name"): 532 valid2 = True 533 testname = arg 534 elif opt in ("-m", "--memory"): 535 memory = arg 536 537 if not (valid1 and valid2): 538 print_help('intel_pstate') 539 sys.exit() 540 541 if cpu_list: 542 for p in re.split("[,]", cpu_list): 543 if int(p) < MAX_CPUS : 544 cpu_mask[int(p)] = 1 545 else: 546 for i in range (0, MAX_CPUS): 547 cpu_mask[i] = 1 548 549 if not os.path.exists('results'): 550 os.mkdir('results') 551 # The regular user needs to own the directory, not root. 552 fix_ownership('results') 553 554 os.chdir('results') 555 if os.path.exists(testname): 556 print('The test name directory already exists. Please provide a unique test name. Test re-run not supported, yet.') 557 sys.exit() 558 os.mkdir(testname) 559 # The regular user needs to own the directory, not root. 560 fix_ownership(testname) 561 os.chdir(testname) 562 563 # Temporary (or perhaps not) 564 cur_version = sys.version_info 565 print('python version (should be >= 2.7):') 566 print(cur_version) 567 568 # Left as "cleanup" for potential future re-run ability. 569 cleanup_data_files() 570 571 if interval: 572 filename = "/sys/kernel/debug/tracing/trace" 573 clear_trace_file() 574 set_trace_buffer_size(memory) 575 enable_trace(trace_file) 576 print('Sleeping for ', interval, 'seconds') 577 time.sleep(int(interval)) 578 disable_trace(trace_file) 579 580 current_max_cpu = 0 581 582 read_trace_data(filename, cpu_mask) 583 584 if interval: 585 clear_trace_file() 586 # Free the memory 587 free_trace_buffer() 588 589 if graph_data_present == False: 590 print('No valid data to plot') 591 sys.exit(2) 592 593 for cpu_no in range(0, current_max_cpu + 1): 594 plot_perf_busy_with_sample(cpu_no) 595 plot_perf_busy(cpu_no) 596 plot_durations(cpu_no) 597 plot_loads(cpu_no) 598 599 plot_pstate_cpu_with_sample() 600 plot_pstate_cpu() 601 plot_load_cpu() 602 plot_frequency_cpu() 603 plot_duration_cpu() 604 plot_scaled_cpu() 605 plot_boost_cpu() 606 plot_ghz_cpu() 607 608 # It is preferrable, but not necessary, that the regular user owns the files, not root. 609 for root, dirs, files in os.walk('.'): 610 for f in files: 611 fix_ownership(f) 612 613 os.chdir('../../') 614