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4bda712ee1
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: Ahmed S. Darwish <darwish.07@gmail.com>
133 lines
4.5 KiB
Bash
Executable file
133 lines
4.5 KiB
Bash
Executable file
#!/bin/bash
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# This file is part of PulseAudio.
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#
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# Copyright 2015 Ahmed S. Darwish <darwish.07@gmail.com>
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#
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# PulseAudio is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# PulseAudio is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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#
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# Measure PulseAudio memory usage (VmSize, Private+Shared_Dirty)
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# while increasing the number of connected clients over time.
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#
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# To avoid premature client exits, please ensure giving a long
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# wave file as the script's first parameter.
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#
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_bold="\x1B[1m"
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_error="\x1B[1;31m"
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_reset="\x1B[0m"
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BASENAME=$(basename $0)
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PROMPT="${_bold}[$BASENAME]${_reset}"
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error() {
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echo -e "$PROMPT: ** Error: ${_error}$1${_reset}" >&2; exit -1
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}
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msg() {
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echo -e "$PROMPT: $1"
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}
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_absolute_dirname="$(dirname `readlink -f $0`)"
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PA_HOME="${_absolute_dirname%/scripts}"
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[ -d "$PA_HOME/src" -a -d "$PA_HOME/scripts" ] ||
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error "This script can only be executed from PulseAudio source tree"
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PA=${PA_HOME}/src/pulseaudio
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PA_CAT=${PA_HOME}/src/pacat
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PA_PLAY=${PA_HOME}/src/paplay
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PA_FLAGS="-n -F ${PA_HOME}/src/default.pa -p ${PA_HOME}/src/"
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[ -L "$PA_PLAY" ] || ln -sf .libs/lt-pacat $PA_PLAY
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PA_PLAY_PROCESS_NAME="paplay"
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SCRIPTS_DIR=${PA_HOME}/scripts
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BENCHMARKS_DIR=${SCRIPTS_DIR}/benchmarks
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GNUPLOT_SCRIPT=${SCRIPTS_DIR}/plot_memory_usage.gp
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OUTPUT_FILE=${BENCHMARKS_DIR}/memory-usage-`date -Iseconds`.txt
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SYMLINK_LATEST_OUTPUT_FILE=${BENCHMARKS_DIR}/memory-usage-LATEST.txt
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MAX_CLIENTS=30
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[ -e "$PA" ] || error "$PA does not exist. Compile PulseAudio tree first."
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[ -x "$PA" ] || error "$PA cannot be executed"
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[ -x "$PA_CAT" ] || error "$PA_CAT cannot be executed"
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AUDIO_FILE="$1"
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[ -n "$AUDIO_FILE" ] || error "Usage: $BASENAME AUDIO_FILE"
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[ -e "$AUDIO_FILE" ] || error "$AUDIO_FILE does not exist"
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[ -f "$AUDIO_FILE" ] || error "$AUDIO_FILE is not a regular file"
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$PA --check >/dev/null 2>&1
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[ "$?" -ne "0" ] || {
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msg "A PulseAudio daemon is already running on your system"
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msg "To use this script, please do the following first:"
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msg " 1. Add autospawn=no to $HOME/.pulse/client.conf"
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msg " 2. Kill current daemon instance using 'pulseaudio --kill'"
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error "Failed to start PulseAudio daemon"
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}
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msg "Hello. Benchmarking PulseAudio daemon memory usage over time"
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# Check Linux Kernel's Documentation/sysctl/vm.txt for details.
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msg "Ensuring consistent results by dropping all VM caches!"
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sudo bash -c "sync && echo 3 >/proc/sys/vm/drop_caches"
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msg "Starting PulseAudio daemon"
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PULSE_LOG=0 PULSE_LOG_COLORS= PULSE_LOG_META= $PA $PA_FLAGS &
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_pid=$!
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# Give PA daemon time to initialize everything and vacuum. We want
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# to make the _starting_ dirty RSS memory usage (0 clients) as
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# equivalent as possible for multiple trials.
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sleep 12
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$PA --check >/dev/null 2>&1
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[ "$?" -eq "0" ] || error "Failed to start PulseAudio daemon"
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echo "# ClientCount VmSize (KiB) DirtyRSS (KiB)" >$OUTPUT_FILE
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msg "Starting PulseAudio clients"
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_i=1;
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while true; do
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[ "$_i" -le "$MAX_CLIENTS" ] || break
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_vmsize=`ps -o vsize= $_pid`
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_drss=`awk '/(Shared|Private)_Dirty:/{ sum += $2 } END { print sum }' /proc/$_pid/smaps`
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[ "$?" -eq "0" ] || error "Error sampling PulseAudio RSS memory usage"
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echo " $_i $_vmsize $_drss" >>$OUTPUT_FILE
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$PA_PLAY $AUDIO_FILE 2>/dev/null &
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_i=$((_i + 1))
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sleep 1
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done
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msg "Finished starting ${MAX_CLIENTS} PulseAudio clients over time"
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_n_clients_still_alive=$(ps -C $PA_PLAY_PROCESS_NAME --no-headers | wc -l)
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[ "$_n_clients_still_alive" -ge "$MAX_CLIENTS" ] || {
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msg "You did not provide a long-enough wave file for clients to play"
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msg "Only $_n_clients_still_alive clients are now active; expected $MAX_CLIENTS"
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error "Please provide a large wave file (~ $((MAX_CLIENTS*2))s) then redo the benchmarks"
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}
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msg "Killing PulseAudio daemon"
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$PA --kill >/dev/null 2>&1
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rm -f $SYMLINK_LATEST_OUTPUT_FILE
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ln -s $OUTPUT_FILE $SYMLINK_LATEST_OUTPUT_FILE
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msg "Sampling daemon memory usage done!"
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msg "Check the results at $SYMLINK_LATEST_OUTPUT_FILE"
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msg "Plot these results using 'gnuplot $GNUPLOT_SCRIPT'"
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