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intel / Numatop

Licence: bsd-3-clause
NumaTOP is an observation tool for runtime memory locality characterization and analysis of processes and threads running on a NUMA system.

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Building & Installing NumaTOP

Numatop uses autotools. If you're compiling from git, run and then make. Otherwise, use ./configure && make.

To install, run sudo make install.

To run the test program, run make check after compilation or check the mgen program for help information.

Build Dependencies

NumaTOP requires following libraries:

  • numactl-devel or libnuma-dev(el)
  • libncurses
  • libpthread

Supported Kernels

The recommended kernel version is the latest stable kernel, currently 4.15.

The minimum kernel version supported is 3.16

For Haswell supporting, please also apply a perf patch on 3.16. The patch is kernel_patches/0001-perf-x86-Widen-Haswell-OFFCORE-mask.patch.

The patch can also be found at following link:


common: common code for all platforms.

intel : Intel platform-specific code.

powerpc: PowerPC platform-specific code.

test : mgen source code. mgen is a micro-test application which can generate memory access with runtime latency value among CPUs. Note that this application is only used for numatop testing!

kernel_patches: the required kernel patches.

Supported Hardware

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 had better be updated to latest CPU microcode (microcode must be 0x618+ or 0x70c+).

To learn about NumaTOP, please visit

PowerPC Support

NumaTOP is also supported on PowerPC. Please check powerpc/FEATURES file for more details.

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