linux-kernel - [PATCH 4.14 053/166] tools/power/x86/intel_pstate_tracer: changes for python 3 compatibility

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Message-Id: <20200929105937.856062003@linuxfoundation.org>
Date:   Tue, 29 Sep 2020 12:59:25 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Doug Smythies <dsmythies@...us.net>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.14 053/166] tools/power/x86/intel_pstate_tracer: changes for python 3 compatibility

From: Doug Smythies <doug.smythies@...il.com>

[ Upstream commit e749e09db30c38f1a275945814b0109e530a07b0 ]

Some syntax needs to be more rigorous for python 3.
Backwards compatibility tested with python 2.7

Signed-off-by: Doug Smythies <dsmythies@...us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 .../intel_pstate_tracer.py                    | 22 +++++++++----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py b/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py
index 0b24dd9d01ff2..98c9f2df8aa71 100755
--- a/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py
+++ b/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py
@@ -10,11 +10,11 @@ then this utility enables and collects trace data for a user specified interval
 and generates performance plots.
 
 Prerequisites:
-    Python version 2.7.x
+    Python version 2.7.x or higher
     gnuplot 5.0 or higher
-    gnuplot-py 1.8
+    gnuplot-py 1.8 or higher
     (Most of the distributions have these required packages. They may be called
-     gnuplot-py, phython-gnuplot. )
+     gnuplot-py, phython-gnuplot or phython3-gnuplot, gnuplot-nox, ... )
 
     HWP (Hardware P-States are disabled)
     Kernel config for Linux trace is enabled
@@ -178,7 +178,7 @@ def plot_pstate_cpu_with_sample():
         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', ' ')
+        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_SAMPLE, C_TO)
         g_plot('title_list = "{}"'.format(title_list))
         g_plot(plot_str)
@@ -195,7 +195,7 @@ def plot_pstate_cpu():
 #    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', ' ')
+    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_TO)
     g_plot('title_list = "{}"'.format(title_list))
     g_plot(plot_str)
@@ -209,7 +209,7 @@ def plot_load_cpu():
     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', ' ')
+    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_LOAD)
     g_plot('title_list = "{}"'.format(title_list))
     g_plot(plot_str)
@@ -223,7 +223,7 @@ def plot_frequency_cpu():
     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', ' ')
+    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)
@@ -238,7 +238,7 @@ def plot_duration_cpu():
     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', ' ')
+    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_DURATION)
     g_plot('title_list = "{}"'.format(title_list))
     g_plot(plot_str)
@@ -252,7 +252,7 @@ def plot_scaled_cpu():
     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', ' ')
+    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_SCALED)
     g_plot('title_list = "{}"'.format(title_list))
     g_plot(plot_str)
@@ -266,7 +266,7 @@ def plot_boost_cpu():
     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', ' ')
+    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_BOOST)
     g_plot('title_list = "{}"'.format(title_list))
     g_plot(plot_str)
@@ -280,7 +280,7 @@ def plot_ghz_cpu():
     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', ' ')
+    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_GHZ)
     g_plot('title_list = "{}"'.format(title_list))
     g_plot(plot_str)
-- 
2.25.1