| #!/bin/sh | |
| testdir=$(dirname $0) | |
| first_input=10 | |
| first_output=$(mktemp) | |
| dart --print-metrics $testdir/ast_membench.dart $1 $first_input >/dev/null 2>$first_output | |
| second_input=20 | |
| second_output=$(mktemp) | |
| dart --print-metrics $testdir/ast_membench.dart $1 $second_input >/dev/null 2>$second_output | |
| bytes1=$(fgrep 'heap.old.used.max' $first_output | head -n1 | cut -d' ' -f4) | |
| bytes2=$(fgrep 'heap.old.used.max' $second_output | head -n1 | cut -d' ' -f4) | |
| bytes=$(echo "($bytes2 - $bytes1)/($second_input - $first_input)" | bc) | |
| mega_bytes=$(echo "$bytes / 1000000" | bc) | |
| printf "Memory usage = %d B (%2.2f MB)" $bytes $mega_bytes | |
| echo | |
| rm -f $first_output $second_output |