Commit 4bda712e authored by Ahmed S. Darwish's avatar Ahmed S. Darwish Committed by Tanu Kaskinen

scripts: Plot memory benchmarks using gnuplot

Now that we have memory usage benchmarks collected at our disposal,
introduce a gnuplot script to plot the newest version.

To avoid scaling issues, memory is plotted in a "double y axis" form,
with VM usage on the left, and dirty RSS memory usage on the right.
Signed-off-by: default avatarAhmed S. Darwish <>
parent c0f2e7d3
......@@ -28,6 +28,7 @@ EXTRA_DIST = \
scripts/ \
scripts/ \
scripts/benchmarks/README \
todo \
.gitignore \
......@@ -53,6 +53,7 @@ PA_PLAY_PROCESS_NAME="paplay"
OUTPUT_FILE=${BENCHMARKS_DIR}/memory-usage-`date -Iseconds`.txt
......@@ -129,3 +130,4 @@ ln -s $OUTPUT_FILE $SYMLINK_LATEST_OUTPUT_FILE
msg "Sampling daemon memory usage done!"
msg "Check the results at $SYMLINK_LATEST_OUTPUT_FILE"
msg "Plot these results using 'gnuplot $GNUPLOT_SCRIPT'"
# This file is part of PulseAudio.
# Copyright 2015 Ahmed S. Darwish <>
# PulseAudio is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# PulseAudio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# General Public License for more details.
# You should have received a copy of the GNU Lesser General Public License
# along with PulseAudio; if not, see <>.
# PulseAudio memory usage plotting script
# Before invocation, generate necessary data by running the
# '' bash script. Afterwards, you can plot
# such data by running:
# gnuplot
# Note! To avoid scaling issues, memory is plotted in a "double y axis"
# form, with VM usage on the left, and dirty RSS memory usage on the
# right. The scales are different.
# Print our user messages to the stdout
set print "-"
benchDir = system('dirname ' .ARG0) .'/benchmarks/'
inputFile = benchDir ."memory-usage-LATEST.txt"
outputFile = benchDir ."pulse-memory-usage.png"
set title "PulseAudio Memory Usage Over Time"
set xlabel "Number of councurrent 'paplay' clients"
set ylabel "Virtual memory consumption (GiB)"
set y2label "Dirty RSS consumption (MiB)"
set ytics nomirror
set y2tics
# Finer granulrity for x-axis ticks ...
set xtics 1,1
set grid
# Use Cairo's PNG backend. This produce images which are way
# better-rendered than the barebone classical png backend
set terminal pngcairo enhanced size 1000,768 font 'Verdana,10'
set output outputFile
print "Plotting data from input file: ", inputFile
print "..."
plot inputFile using 1:($2/1024/1024) title "VmSize" axes x1y1 with linespoints, \
inputFile using 1:($3/1024) title "Dirty RSS" axes x1y2 with linespoints
print "Done! Check our performance at: ", outputFile
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