numatop

A top-like tool for runtime memory locality monitoring on NUMA systems

NumaTOP is an observation tool for runtime memory locality characterization and analysis of processes and threads running on a NUMA system. It helps the user characterize the NUMA behavior of processes and threads and identify where the NUMA-related performance bottlenecks reside. Numatop is supported on Intel Xeon processors: 5500-series, 6500/7500-series, 5600 series, E7-x8xx-series, and E5-16xx/24xx/26xx/46xx-series. E5-16xx/24xx/26xx/46xx-series should be updated to latest CPU microcode (microcode must be 0x618+ or 0x70c+). Kernel 3.9 or higher is required.