On Thu Mar 28, 2024 at 2:22 AM EET, Haitao Huang wrote: > The scripts rely on cgroup-tools package from libcgroup [1]. > > To run selftests for epc cgroup: > > sudo ./run_epc_cg_selftests.sh > > To watch misc cgroup 'current' changes during testing, run this in a > separate terminal: > > ./watch_misc_for_tests.sh current > > With different cgroups, the script starts one or multiple concurrent SGX > selftests, each to run one unclobbered_vdso_oversubscribed test. Each > of such test tries to load an enclave of EPC size equal to the EPC > capacity available on the platform. The script checks results against > the expectation set for each cgroup and reports success or failure. > > The script creates 3 different cgroups at the beginning with following > expectations: > > 1) SMALL - intentionally small enough to fail the test loading an > enclave of size equal to the capacity. > 2) LARGE - large enough to run up to 4 concurrent tests but fail some if > more than 4 concurrent tests are run. The script starts 4 expecting at > least one test to pass, and then starts 5 expecting at least one test > to fail. > 3) LARGER - limit is the same as the capacity, large enough to run lots of > concurrent tests. The script starts 8 of them and expects all pass. > Then it reruns the same test with one process randomly killed and > usage checked to be zero after all process exit. > > The script also includes a test with low mem_cg limit and LARGE sgx_epc > limit to verify that the RAM used for per-cgroup reclamation is charged > to a proper mem_cg. > > [1] https://github.com/libcgroup/libcgroup/blob/main/README > > Signed-off-by: Haitao Huang <haitao.huang@xxxxxxxxxxxxxxx> My previous comments and you have two undocumented dependencies for your selftest (I searched for cgexec and cgroups-tools as keywords). BR, Jarkko
