1. Prepare the environment
sh /usr/share/extuner/examples/tuning/gcc_compile/prepare.sh
2. download stream.c
wget http://www.cs.virginia.edu/stream/FTP/Code/stream.c
3. modify yaml
vim /usr/share/extuner/examples/tuning/gcc_compile/gcc_compile.yaml
4. Start to tuning
extuner tuning /usr/share/extuner/examples/tuning/gcc_compile/gcc_compile.yaml
