(irrelevance)  Find Balanced Level of Detail  Underspecified: “We ran all experiments on an Intel CPU”  Over-specified: cat /proc/cpuinfo cat /proc/meminfo  Recommendation  HW components: #nodes Interpretation  Use the Right OS Tools  System-specific tracing/statistics  top / htop / iotop (looks CPU bound)  perf -stat -d ./run.sh (no, it’s memory-bandwidth bound) Experiments and Result Presentation

systems. SIGMOD 2006  #16.3 Marcin Zukowski, Sándor Héman, Niels Nes, Peter A. Boncz: Super-Scalar RAM-CPU Cache Compression. ICDE 2006  Modern Hardware  #17.1 Lasse Thostrup, Jan Skrzypczak, Matthias