fixed a typo in performance.rb
Merge branch 'master' of https://github.com/xiaoyaozi5566/GEM5_DRAMSim2
Merge branch 'master' of https://github.com/xiaoyaozi5566/GEM5_DRAMSim2
Merge branch 'master' of https://github.com/xiaoyaozi5566/GEM5_DRAMSim2
add stdio to compile on cluster