Crystal compiler compile benchmark

bench.bash

#!/bin/bash

set -e

rm -rf ./.crystal ./.build
git checkout master

echo "1st Build"
./bin/crystal --version
make release=1

echo "2nd Build"
rm -rf ./.crystal
git checkout feature/method_added
touch src/compiler/crystal.cr
./bin/crystal --version
time make release=1

echo "3rd Build"
rm -rf ./.crystal
touch src/compiler/crystal.cr
./bin/crystal --version
time make release=1

result.txt

Switched to branch 'master'
Your branch is up-to-date with 'origin/master'.
1st Build
Crystal 0.7.5 [2a33a87] (Thu Jul 30 17:32:32 UTC 2015)
./bin/crystal build --release  -o .build/crystal src/compiler/crystal.cr
2nd Build
Switched to branch 'feature/method_added'
Using compiled compiler at .build/crystal
Crystal 0.7.5 [b10df4d] (Sun Aug 2 23:51:23 UTC 2015)
./bin/crystal build --release  -o .build/crystal src/compiler/crystal.cr
Using compiled compiler at .build/crystal

real	4m4.082s
user	4m6.904s
sys	0m1.462s
3rd Build
Using compiled compiler at .build/crystal
Crystal 0.7.5 [4c6070e] (Sun Aug 2 23:55:34 UTC 2015)
./bin/crystal build --release  -o .build/crystal src/compiler/crystal.cr
Using compiled compiler at .build/crystal

real	4m2.070s
user	4m2.931s
sys	0m1.454s