update mm_test_client use used mem to caculate. from real_used_mem to total_mem
Signed-off-by: root3 <root3@root3-Server.(none)>
install mm_test_client

Signed-off-by: root3 <root3@root3-Server.(none)>
readme add mm_test_client description

Signed-off-by: xiehuc <xiehuc@gmail.com>