Function imbalance_worker

tests/system_test/balance_test.cpp:51–67

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

void imbalance_worker(void* /*arg*/) {
  // Batch yields keep the task visible in the ready queue for Balance(),
  // while periodic sleeps reduce scheduling pressure to avoid overwhelming
  // the scheduler lock (which can trigger recursive-lock panics under
  // extreme contention).
  for (int round = 0; round < 200; ++round) {
    for (int j = 0; j < 10; ++j) {
      auto core_id = cpu_io::GetCurrentCoreId();
      g_cores_used_mask.fetch_or(1UL << core_id, std::memory_order_relaxed);
      (void)sys_yield();
    }
    (void)sys_sleep(1);
  }

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

void test_balance_imbalanced_load(void* /*arg*/) {
  klog::Info("=== Balance: Imbalanced Load Test ===");