void test_single_cas(size_t id, size_t nrun) { size_t dummy; for (size_t i = 0; i < nrun; i++) { lock_instr_test.compare_exchange_weak(dummy, dummy+1, std::memory_order_relaxed, std::memory_order_relaxed); } }
void test_many_cas(size_t id, size_t nrun) { size_t dummy; for (size_t i = 0; i < nrun; i++) { while (!lock_instr_test.compare_exchange_weak(dummy, dummy+1, std::memory_order_relaxed, std::memory_order_relaxed)) {} } }