nnn/misc/test/benchmark.sh

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#!/bin/sh
#
# Usage: ./misc/test/benchmark.sh ./nnn /tmp/testdir1 ./testdir2 ...
#
# Don't forget to build nnn in benchmark mode: make O_BENCH=1
# Use a test dir filled with genfiles.sh to get interesting output
# (or maybe /usr/lib/)
LANG=C
TIME_VAL=${TIME_VAL:-"real"}
SAMPLES=${SAMPLES:-100}
EXE=$1
bench_val () {
(time "$1" "$2") 2>&1 |\
awk '$1=="'"$TIME_VAL"'"{match($2, /[0-9]*\.[0-9]*/) ; print substr($2, RSTART, RLENGTH)}'
}
bench_dir () {
i=$SAMPLES
printf "$2"
while [ $((i--)) -gt 0 ] ; do
printf "\t%s" "$(bench_val "$1" "$2")"
done
printf "\n"
}
shift
for dir in "$@" ; do
bench_dir "$EXE" "$dir"
done