benchmark

#!/bin/bash
#
# 2013-11-17: Frederick Ceder
#
 
if  [[ $# < 4 ]] 
then
    echo "Usage: benchmark <command> <input-file> <repeats> <thread_count>"
    echo "Usage: benchmark <command> <input-file> <repeats> <thread_count> <anything_to_remove_old_outdata>"
    echo ""
    exit 0
fi

command=$1
inputfile=$2
repeats=$3
numthreads=$4
output_file='benchmark_results_'${command##*/}'.csv'

output_dir="output/"
output_file=$output_dir$output_file
TIMEFORMAT='%3R'

mkdir -p $output_dir
if  [[ $# > 4 ]] 
then
    # in this case we remove the old *.csv
    rm ${output_dir}*.csv
fi
echo "Outputting to file: "$output_file
echo ""

command_to_run="${command} ${numthreads} ${inputfile}"
# --------------------------------------------------------------------------
# Benchmark loop
# --------------------------------------------------------------------------
echo 'Benchmarking ' $command_to_run '...';
# Indicate the command we just run in the csv file
echo '======' $command_to_run '======' >> $output_file;

# Run the given command [repeats] times
for (( i = 1; i <= $repeats ; i++ ))
do
    # percentage completion
    p=$(( $i * 100 / $repeats))
    # indicator of progress
    l=$(seq -s "+" $i | sed 's/[0-9]//g')

    (time $command_to_run) > /dev/null 2>> $output_file

    echo -ne ${l}' ('${p}'%) \r'
done

echo -ne '\n'

# Convenience seperator for file
# echo '-----------------------------------------' >> $output_file