Date:   Mon, 13 Feb 2017 15:19:07 -0800
From:   Doug Smythies <doug.smythies@...il.com>
To:     srinivas.pandruvada@...ux.intel.com, rjw@...ysocki.net,
        len.brown@...el.com
Cc:     dsmythies@...us.net, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org
Subject: [PATCH v2] tools/power/x86: Debug utility for intel_pstate driver

This utility can be used to debug and tune the performance of the
intel_pstate driver.
This utility can be used in two ways:
- If there is Linux trace file with pstate_sample events enabled, then
this utility can parse the trace file and generate performance plots.
- If user has not specified a trace file as input via command line
parameters, then this utility enables and collects trace data for a user
specified interval and generates performance plots.

Signed-off-by: Doug Smythies <dsmythies@...us.net>
---
 .../x86/intel_pstate_tracer/intel_pstate_tracer.py | 569 +++++++++++++++++++++
 1 file changed, 569 insertions(+)
 create mode 100755 tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py

diff --git a/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py b/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py
new file mode 100755
index 0000000..fd706ac
--- /dev/null
+++ b/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py
@@ -0,0 +1,569 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+#
+""" This utility can be used to debug and tune the performance of the
+intel_pstate driver. This utility can be used in two ways:
+- If there is Linux trace file with pstate_sample events enabled, then
+this utility can parse the trace file and generate performance plots.
+- If user has not specified a trace file as input via command line parameters,
+then this utility enables and collects trace data for a user specified interval
+and generates performance plots.
+
+Prerequisites:
+    Python version 2.7.x
+    gnuplot 5.0 or higher
+    gnuplot-py 1.8
+    (Most of the distributions have these required packages. They may be called
+     gnuplot-py, phython-gnuplot. )
+
+    HWP (Hardware P-States are disabled)
+    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 sys
+import getopt
+import Gnuplot
+from numpy import *
+from decimal import *
+
+__author__ = "Srinivas Pandruvada"
+__copyright__ = " Copyright (c) 2017, Intel Corporation. "
+__license__ = "GPL version 2"
+
+
+MAX_CPUS = 256
+
+# Define the csv file columns
+C_COMM = 18
+C_GHZ = 17
+C_ELAPSED = 16
+C_SAMPLE = 15
+C_DURATION = 14
+C_LOAD = 13
+C_BOOST = 12
+C_FREQ = 11
+C_TSC = 10
+C_APERF = 9
+C_MPERF = 8
+C_TO = 7
+C_FROM = 6
+C_SCALED = 5
+C_CORE = 4
+C_USEC = 3
+C_SEC = 2
+C_CPU = 1
+
+global sample_num, last_sec_cpu, last_usec_cpu, start_time, testname
+
+# 11 digits covers uptime to 115 days
+getcontext().prec = 11
+
+sample_num =0
+last_sec_cpu = [0] * MAX_CPUS
+last_usec_cpu = [0] * MAX_CPUS
+
+def print_help():
+    print('intel_pstate_tracer.py:')
+    print('  Usage:')
+    print('    If the trace file is available, then to simply parse and plot, use (sudo not required):')
+    print('      ./intel_pstate_tracer.py [-c cpus] -t <trace_file> -n <test_name>')
+    print('    Or')
+    print('      ./intel_pstate_tracer.py [--cpu cpus] ---trace_file <trace_file> --name <test_name>')
+    print('    To generate trace file, parse and plot, use (sudo required):')
+    print('      sudo ./intel_pstate_tracer.py [-c cpus] -i <interval> -n <test_name>')
+    print('    Or')
+    print('      sudo ./intel_pstate_tracer.py [--cpu cpus] --interval <interval> --name <test_name>')
+    print('    Optional argument:')
+    print('      cpus:  comma separated list of CPUs')
+    print('  Output:')
+    print('    If not already present, creates a "results/test_name" folder in the current working directory with:')
+    print('      cpu.csv - comma seperated values file with trace contents and some additional calculations.')
+    print('      cpu???.csv - comma seperated values file for CPU number ???.')
+    print('      *.png - a variety of PNG format plot files created from the trace contents and the additional calculations.')
+    print('  Notes:')
+    print('    Avoid the use of _ (underscore) in test names, because in gnuplot it is a subscript directive.')
+    print('    Maximum number of CPUs is {0:d}. If there are more the script will abort with an error.'.format(MAX_CPUS))
+    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.')
+    print('    Empty y range warnings for autoscaled plots can occur and can be ignored.')
+
+def plot_perf_busy_with_sample(cpu_index):
+    """ Plot method to per cpu information """
+
+    file_name = 'cpu{:0>3}.csv'.format(cpu_index)
+    if os.path.exists(file_name):
+        output_png = "cpu%03d_perf_busy_vs_samples.png" % cpu_index
+        g_plot = common_all_gnuplot_settings(output_png)
+        g_plot('set yrange [0:40]')
+        g_plot('set y2range [0:200]')
+        g_plot('set y2tics 0, 10')
+        g_plot('set title "{} : cpu perf busy vs. sample : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now()))
+#       Override common
+        g_plot('set xlabel "Samples"')
+        g_plot('set ylabel "P-State"')
+        g_plot('set y2label "Scaled Busy/performance/io-busy(%)"')
+        set_4_plot_linestyles(g_plot)
+        g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y2 title "performance",\\'.format(C_SAMPLE, C_CORE))
+        g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 2 axis x1y2 title "scaled-busy",\\'.format(C_SAMPLE, C_SCALED))
+        g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 3 axis x1y2 title "io-boost",\\'.format(C_SAMPLE, C_BOOST))
+        g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 4 axis x1y1 title "P-State"'.format(C_SAMPLE, C_TO))
+
+def plot_perf_busy(cpu_index):
+    """ Plot some per cpu information """
+
+    file_name = 'cpu{:0>3}.csv'.format(cpu_index)
+    if os.path.exists(file_name):
+        output_png = "cpu%03d_perf_busy.png" % cpu_index
+        g_plot = common_all_gnuplot_settings(output_png)
+        g_plot('set yrange [0:40]')
+        g_plot('set y2range [0:200]')
+        g_plot('set y2tics 0, 10')
+        g_plot('set title "{} : perf busy : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now()))
+        g_plot('set ylabel "P-State"')
+        g_plot('set y2label "Scaled Busy/performance/io-busy(%)"')
+        set_4_plot_linestyles(g_plot)
+        g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y2 title "performance",\\'.format(C_ELAPSED, C_CORE))
+        g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 2 axis x1y2 title "scaled-busy",\\'.format(C_ELAPSED, C_SCALED))
+        g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 3 axis x1y2 title "io-boost",\\'.format(C_ELAPSED, C_BOOST))
+        g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 4 axis x1y1 title "P-State"'.format(C_ELAPSED, C_TO))
+
+def plot_durations(cpu_index):
+    """ Plot per cpu durations """
+
+    file_name = 'cpu{:0>3}.csv'.format(cpu_index)
+    if os.path.exists(file_name):
+        output_png = "cpu%03d_durations.png" % cpu_index
+        g_plot = common_all_gnuplot_settings(output_png)
+#       Should autoscale be used here? Should seconds be used here?
+        g_plot('set yrange [0:5000]')
+        g_plot('set ytics 0, 500')
+        g_plot('set title "{} : durations : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now()))
+        g_plot('set ylabel "Timer Duration (MilliSeconds)"')
+#       override common
+        g_plot('set key off')
+        set_4_plot_linestyles(g_plot)
+        g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y1'.format(C_ELAPSED, C_DURATION))
+
+def plot_loads(cpu_index):
+    """ Plot per cpu loads """
+
+    file_name = 'cpu{:0>3}.csv'.format(cpu_index)
+    if os.path.exists(file_name):
+        output_png = "cpu%03d_loads.png" % cpu_index
+        g_plot = common_all_gnuplot_settings(output_png)
+        g_plot('set yrange [0:100]')
+        g_plot('set ytics 0, 10')
+        g_plot('set title "{} : loads : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now()))
+        g_plot('set ylabel "CPU load (percent)"')
+#       override common
+        g_plot('set key off')
+        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_pstate_cpu_with_sample():
+    """ Plot all cpu information """
+
+    if os.path.exists('cpu.csv'):
+        output_png = 'all_cpu_pstates_vs_samples.png'
+        g_plot = common_all_gnuplot_settings(output_png)
+        g_plot('set yrange [0:40]')
+#       override common
+        g_plot('set xlabel "Samples"')
+        g_plot('set ylabel "P-State"')
+        g_plot('set title "{} : cpu pstate vs. sample : {:%F %H:%M}"'.format(testname, datetime.now()))
+        title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).replace('\n', ' ')
+        plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_SAMPLE, C_TO)
+        g_plot('title_list = "{}"'.format(title_list))
+        g_plot(plot_str)
+
+def plot_pstate_cpu():
+    """ Plot all cpu information from csv files """
+
+    output_png = 'all_cpu_pstates.png'
+    g_plot = common_all_gnuplot_settings(output_png)
+    g_plot('set yrange [0:40]')
+    g_plot('set ylabel "P-State"')
+    g_plot('set title "{} : cpu pstates : {:%F %H:%M}"'.format(testname, datetime.now()))
+
+#    the following command is really cool, but doesn't work with the CPU masking option because it aborts on the first missing file.
+#    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'
+#
+    title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).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_TO)
+    g_plot('title_list = "{}"'.format(title_list))
+    g_plot(plot_str)
+
+def plot_load_cpu():
+    """ Plot all cpu loads """
+
+    output_png = 'all_cpu_loads.png'
+    g_plot = common_all_gnuplot_settings(output_png)
+    g_plot('set yrange [0:100]')
+    g_plot('set ylabel "CPU load (percent)"')
+    g_plot('set title "{} : cpu loads : {:%F %H:%M}"'.format(testname, datetime.now()))
+
+    title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).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_LOAD)
+    g_plot('title_list = "{}"'.format(title_list))
+    g_plot(plot_str)
+
+def plot_frequency_cpu():
+    """ Plot all cpu frequencies """
+
+    output_png = 'all_cpu_frequencies.png'
+    g_plot = common_all_gnuplot_settings(output_png)
+    g_plot('set yrange [0:4]')
+    g_plot('set ylabel "CPU Frequency (GHz)"')
+    g_plot('set title "{} : cpu frequencies : {:%F %H:%M}"'.format(testname, datetime.now()))
+
+    title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).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_duration_cpu():
+    """ Plot all cpu durations """
+
+    output_png = 'all_cpu_durations.png'
+    g_plot = common_all_gnuplot_settings(output_png)
+    g_plot('set yrange [0:5000]')
+    g_plot('set ytics 0, 500')
+    g_plot('set ylabel "Timer Duration (MilliSeconds)"')
+    g_plot('set title "{} : cpu durations : {:%F %H:%M}"'.format(testname, datetime.now()))
+
+    title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).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_DURATION)
+    g_plot('title_list = "{}"'.format(title_list))
+    g_plot(plot_str)
+
+def plot_scaled_cpu():
+    """ Plot all cpu scaled busy """
+
+    output_png = 'all_cpu_scaled.png'
+    g_plot = common_all_gnuplot_settings(output_png)
+#   autoscale this one, no set y range
+    g_plot('set ylabel "Scaled Busy (Unitless)"')
+    g_plot('set title "{} : cpu scaled busy : {:%F %H:%M}"'.format(testname, datetime.now()))
+
+    title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).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_SCALED)
+    g_plot('title_list = "{}"'.format(title_list))
+    g_plot(plot_str)
+
+def plot_boost_cpu():
+    """ Plot all cpu IO Boosts """
+
+    output_png = 'all_cpu_boost.png'
+    g_plot = common_all_gnuplot_settings(output_png)
+    g_plot('set yrange [0:100]')
+    g_plot('set ylabel "CPU IO Boost (percent)"')
+    g_plot('set title "{} : cpu io boost : {:%F %H:%M}"'.format(testname, datetime.now()))
+
+    title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).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_BOOST)
+    g_plot('title_list = "{}"'.format(title_list))
+    g_plot(plot_str)
+
+def plot_ghz_cpu():
+    """ Plot all cpu tsc ghz """
+
+    output_png = 'all_cpu_ghz.png'
+    g_plot = common_all_gnuplot_settings(output_png)
+#   autoscale this one, no set y range
+    g_plot('set ylabel "TSC Frequency (GHz)"')
+    g_plot('set title "{} : cpu TSC Frequencies (Sanity check calculation) : {:%F %H:%M}"'.format(testname, datetime.now()))
+
+    title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).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_GHZ)
+    g_plot('title_list = "{}"'.format(title_list))
+    g_plot(plot_str)
+
+def common_all_gnuplot_settings(output_png):
+    """ common gnuplot settings for multiple CPUs one one graph. """
+
+    g_plot = common_gnuplot_settings()
+    g_plot('set output "' + output_png + '"')
+    return(g_plot)
+
+def common_gnuplot_settings():
+    """ common gnuplot settings. """
+
+    g_plot = Gnuplot.Gnuplot(persist=1)
+#   The following line is for rigor only. It seems to be assumed for .csv files
+    g_plot('set datafile separator \",\"')
+    g_plot('set ytics nomirror')
+    g_plot('set xtics nomirror')
+    g_plot('set xtics font ", 10"')
+    g_plot('set ytics font ", 10"')
+    g_plot('set tics out scale 1.0')
+    g_plot('set grid')
+    g_plot('set key out horiz')
+    g_plot('set key bot center')
+    g_plot('set key samplen 2 spacing .8 font ", 9"')
+    g_plot('set term png size 1200, 600')
+    g_plot('set title font ", 11"')
+    g_plot('set ylabel font ", 10"')
+    g_plot('set xlabel font ", 10"')
+    g_plot('set xlabel offset 0, 0.5')
+    g_plot('set xlabel "Elapsed Time (Seconds)"')
+    return(g_plot)
+
+def set_4_plot_linestyles(g_plot):
+    """ set the linestyles used for 4 plots in 1 graphs. """
+
+    g_plot('set style line 1 linetype 1 linecolor rgb "green" pointtype -1')
+    g_plot('set style line 2 linetype 1 linecolor rgb "red" pointtype -1')
+    g_plot('set style line 3 linetype 1 linecolor rgb "purple" pointtype -1')
+    g_plot('set style line 4 linetype 1 linecolor rgb "blue" pointtype -1')
+
+def 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):
+    """ 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, %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)
+        f_handle.write(string_buffer);
+        f_handle.close()
+    except:
+        print('IO error cpu.csv')
+        return
+
+    graph_data_present = True;
+
+def split_csv():
+    """ seperate the all csv file into per CPU csv files. """
+
+    global current_max_cpu
+
+    if os.path.exists('cpu.csv'):
+        for index in range(0, current_max_cpu + 1):
+            if cpu_mask[int(index)] != 0:
+                os.system('grep -m 1 common_cpu cpu.csv > cpu{:0>3}.csv'.format(index))
+                os.system('grep CPU_{:0>3} cpu.csv >> cpu{:0>3}.csv'.format(index, index))
+
+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, core_busy, scaled_busy, from, to, mperf, aperf, tsc, freq, boost, load, duration_ms, sample_num, elapsed_time, tsc_ghz, common_comm')
+    f_handle.write('\n')
+    f_handle.close()
+
+def clear_trace_file():
+    """ Clear trace file """
+
+    try:
+        f_handle = open('/sys/kernel/debug/tracing/trace', 'w')
+        f_handle.close()
+    except:
+        print('IO error clearing trace file ')
+        quit()
+
+def enable_trace():
+    """ Enable trace """
+
+    try:
+       open('/sys/kernel/debug/tracing/events/power/pstate_sample/enable'
+                 , 'w').write("1")
+    except:
+        print('IO error enabling trace ')
+        quit()
+
+def disable_trace():
+    """ Disable trace """
+
+    try:
+       open('/sys/kernel/debug/tracing/events/power/pstate_sample/enable'
+                 , 'w').write("0")
+    except:
+        print('IO error disabling trace ')
+        quit()
+
+def set_trace_buffer_size():
+    """ Set trace buffer size """
+
+    try:
+       open('/sys/kernel/debug/tracing/buffer_size_kb'
+                 , 'w').write("10240")
+    except:
+        print('IO error setting trace buffer size ')
+        quit()
+
+def read_trace_data(filename):
+    """ Read and parse trace data """
+
+    global current_max_cpu
+    global sample_num, last_sec_cpu, last_usec_cpu, start_time
+
+    try:
+        data = open(filename, 'r').read()
+    except:
+        print('Error opening ', filename)
+        quit()
+
+    for line in data.splitlines():
+        search_obj = \
+            re.search(r'(^(.*?)\[)((\d+)[^\]])(.*?)(\d+)([.])(\d+)(.*?core_busy=)(\d+)(.*?scaled=)(\d+)(.*?from=)(\d+)(.*?to=)(\d+)(.*?mperf=)(\d+)(.*?aperf=)(\d+)(.*?tsc=)(\d+)(.*?freq=)(\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)
+            core_busy = search_obj.group(10)
+            scaled = search_obj.group(12)
+            _from = search_obj.group(14)
+            _to = search_obj.group(16)
+            mperf = search_obj.group(18)
+            aperf = search_obj.group(20)
+            tsc = search_obj.group(22)
+            freq = search_obj.group(24)
+            common_comm = search_obj.group(2).replace(' ', '')
+
+            # Not all kernel versions have io_boost field
+            io_boost = '0'
+            search_obj = re.search(r'.*?io_boost=(\d+)', line)
+            if search_obj:
+                io_boost = search_obj.group(1)
+
+            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)
+#               Sanity check calculation, typically anomalies indicate missed samples
+#               However, check for 0 (should never occur)
+                tsc_ghz = Decimal(0)
+                if duration_ms != Decimal(0) :
+                    tsc_ghz = Decimal(tsc)/duration_ms/Decimal(1000000)
+                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)
+
+            if cpu_int > current_max_cpu:
+                current_max_cpu = cpu_int
+# End of for each trace line loop
+# Now seperate the main overall csv file into per CPU csv files.
+    split_csv()
+
+interval = ""
+filename = ""
+cpu_list = ""
+testname = ""
+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:",["help","trace_file=","interval=","cpu=","name="])
+except getopt.GetoptError:
+    print_help()
+    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__)))
+        filename = 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
+        testname = arg
+
+if not (valid1 and valid2):
+    print_help()
+    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')
+
+os.chdir('results')
+if os.path.exists(testname):
+    print('The test name directory already exists. Please provide a unique test name. Test re-run not supported, yet.')
+    sys.exit()
+os.mkdir(testname)
+os.chdir(testname)
+
+# Temporary (or perhaps not)
+cur_version = sys.version_info
+print('python version (should be >= 2.7):')
+print(cur_version)
+
+# Left as "cleanup" for potential future re-run ability.
+cleanup_data_files()
+
+if interval:
+    filename = "/sys/kernel/debug/tracing/trace"
+    clear_trace_file()
+    set_trace_buffer_size()
+    enable_trace()
+    print('Sleeping for ', interval, 'seconds')
+    time.sleep(int(interval))
+    disable_trace()
+
+current_max_cpu = 0
+
+read_trace_data(filename)
+
+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_perf_busy_with_sample(cpu_no)
+    plot_perf_busy(cpu_no)
+    plot_durations(cpu_no)
+    plot_loads(cpu_no)
+
+plot_pstate_cpu_with_sample()
+plot_pstate_cpu()
+plot_load_cpu()
+plot_frequency_cpu()
+plot_duration_cpu()
+plot_scaled_cpu()
+plot_boost_cpu()
+plot_ghz_cpu()
+
+os.chdir('../../')
-- 
2.7.4

Powered by blists - more mailing lists