bench.sh

#!/bin/bash
#/ Usage: bench.sh <setup> <command> <teardown> <repeats>
set -e

[ $# -lt 4 ] && {
    tail -n +2 "$0" |
    grep "^#/"      |
    cut -c4-
    exit 2
}

setup=$1
command=$2
teardown=$3
repeats=$4

# Run the given command [repeats] times
for (( i = 1; i <= $repeats ; i++ ))
do 

    /usr/bin/time -f "%E,%U,%S" ${setup} > /dev/null 2>&1
    /usr/bin/time -f "%E,%U,%S" ${command}
    /usr/bin/time -f "%E,%U,%S" ${teardown} > /dev/null 2>&1

    # Clear the HDD cache
    sync && echo 3 > /proc/sys/vm/drop_caches
done;

a note from past jesse: do not delete me please