异步/等待Asp.Net Core何时需要异步？

Question

Will the IO bound code in this context be put on the IO thread? Or do I need to make the Get method async and await PassThroughTask ?

//Some controller class 

[HttpGet]
public Task<ActionResult> Get()
{
    PassThroughTask(); 
    return Ok("passthrough");
}

public async Task PassThroughTask()
{
    //Is this going to stop the IoBoundWork from going to the IO thread? 
    await SomeIoBoundWorkAsync();
}

public async Task SomeIoBoundWorkAsync(){ //await async io stuff}

Answer 1

Or do I need to make the Get method async and await PassThroughTask?

Yes.

The return Ok("passthrough"); statement is a lie. You don't know how many exceptions were thrown, you didn't listen.