Function affinity_pinned_worker

tests/system_test/balance_test.cpp:144–156

std::atomic<uint64_t> g_affinity_cores_mask{0};

void affinity_pinned_worker(void* /*arg*/) {
  for (int round = 0; round < 100; ++round) {
    for (int j = 0; j < 10; ++j) {
      auto core_id = cpu_io::GetCurrentCoreId();
      g_affinity_cores_mask.fetch_or(1UL << core_id, std::memory_order_relaxed);
      (void)sys_yield();
    }
    (void)sys_sleep(1);
  }

  g_affinity_done.fetch_add(1, std::memory_order_release);
  sys_exit(0);
}

void test_balance_respects_affinity(void* /*arg*/) {
  klog::Info("=== Balance: Respects Affinity Test ===");