Various simple test scripts to verify some parts of the NUMA API. To do a full regression test run make test You should have at least two nodes on a NUMA system for the test suite. The tests in regress assume that there is enough memory free on nodes 0/1. They consider PREFERRED/INTERLEAVE not hitting the first choice node an error. They also require a relatively idle machine to avoid too much noise from memory allocation from other processes. Without that regress1 might fail. You can run the tests under valgrind with VALGRIND=valgrind make test Older valgrind versions incorrectly report a uninitialized byte error on set_mempolicy. That is a false positive. TBD: more detailed unit tests for mbind / shm / {get,set}_mempolicy Currently everything is tested using numactl only.