#!/bin/bash

# Copyright 2015-present Samsung Electronics Co., Ltd. and other contributors

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

# Usage

if [ "$#" -lt 3 ]

then

echo "$0: Benchmark memory usage of IoT.js"

echo ""

echo "Usage: $0 [-d] IOTJS IOTJS_MEMSTATS BENCHMARK..."

echo ""

echo "Positional arguments:"

echo " IOTJS path to IoT.js engine built without memory"

echo " statistics support"

echo " IOTJS_MEMSTATS path to IoT.js engine built with memory statistics"

echo " support"

echo " BENCHMARK... paths to JavaScript programs to be used as the"

echo " benchmark suite"

echo ""

echo "Optional arguments:"

echo " -d generate semicolon-delimited output (default:"

echo " formatted human-readable output)"

echo ""

echo "The tool benchmarks the memory usage of IoT.js with the help of two"

echo "different builds and a suite of JavaScript programs. Each benchmark"

echo "script is executed by both builds: the \"memstats\" build reports"

echo "statistics retrieved from JerryScript, while the \"normal\" build"

echo "reports RSS results."

exit 1

fi

# Choosing table or semicolon-separated output mode

if [ "$1" == "-d" ]

then

TABLE="no"

PRINT_TEST_NAME_AWK_SCRIPT='{printf "%s;", $1}'

PRINT_TOTAL_AWK_SCRIPT='{printf "%d;%d\n", $1, $2 * 1024}'

shift

else

PRINT_TEST_NAME_AWK_SCRIPT='{printf "%30s", $1}'

PRINT_TOTAL_AWK_SCRIPT='{printf "%25d%25d\n", $1, $2 * 1024}'

TABLE="yes"

fi

function fail_msg

}

# Engine

# Check if the specified build supports memory statistics options

function is_mem_stats_build

}

IOTJS=$(readlink -f "$1")

shift

is_mem_stats_build "$IOTJS" || fail_msg \

"First engine specified should be built without memory statistics support"

IOTJS_MEM_STATS=$(readlink -f "$1")

shift

is_mem_stats_build "$IOTJS_MEM_STATS" && fail_msg \

"Second engine specified should be built with memory statistics support"

# Benchmarks list

BENCHMARKS=""

while [ $# -ne 0 ]

do

BENCHMARKS="$BENCHMARKS $1"

shift

done

# Running

if [ "$TABLE" == "yes" ]

then

awk 'BEGIN {printf "%30s%25s%25s\n", "Test name", "Peak Heap (jerry)", \

"Maximum RSS"}'

echo

fi

STARTDIR=$(pwd)

for bench in $BENCHMARKS

do

bench_name=$(basename -s '.js' $bench)

bench_canon=$(readlink -f $bench)

cd `dirname $bench_canon`

echo "$bench_name" | awk "$PRINT_TEST_NAME_AWK_SCRIPT"

MEM_STATS=$("$IOTJS_MEM_STATS" --memstat $bench_canon | \

grep -e "Peak allocated =" | grep -o "[0-9]*")

RSS=$($STARTDIR/deps/jerry/tools/rss-measure.sh "$IOTJS" $bench_canon | \

tail -n 1 | grep -o "[0-9]*")

echo $MEM_STATS $RSS | xargs | awk "$PRINT_TOTAL_AWK_SCRIPT"

cd $STARTDIR

done