Function test_cfs_preemption

tests/system_test/cfs_scheduler_test.cpp:184–205

}

auto test_cfs_preemption() -> bool {
  klog::Info("Running test_cfs_preemption...");

  CfsScheduler scheduler;

  TaskControlBlock task1("Task1", 1, nullptr, nullptr);
  task1.sched_data.cfs.weight = CfsScheduler::kDefaultWeight;
  task1.sched_data.cfs.vruntime = 1000;

  TaskControlBlock task2("Task2", 2, nullptr, nullptr);
  task2.sched_data.cfs.weight = CfsScheduler::kDefaultWeight;
  task2.sched_data.cfs.vruntime = 0;  // 更小的 vruntime

  scheduler.Enqueue(&task2);

  // task1 运行时，应该被抢占
  bool should_preempt = scheduler.OnTick(&task1);
  EXPECT_TRUE(should_preempt, "Task with higher vruntime should be preempted");

  klog::Info("test_cfs_preemption passed");
  return true;
}

auto test_cfs_no_preemption() -> bool {
  klog::Info("Running test_cfs_no_preemption...");