namd gromacs zeusmp calculix GemsFDTD soplex sphinx3 bwaves milc dealII wrf h264ref gamess tonto xalancbmk povray perlbench sjeng gcc gobmk omnetpp cactusADM L1 I-Cache MPKI 0 30 60 90 120 Word Finder Todo Mud Etherpad Let's Chat Lighter SPEC CPU 2006 NodeJS I-Cache Parameters 32 KB, 64 B cache line, 8-way SPEC CPU 2006 Average Node.js has 4.2 X higher MPKI than SPEC CPU.