> you shall not block and you shall not go too long until yielding Arn't those effectively the same? I think the only contract is "you shall not go too long u

> you shall not block and you shall not go too long until yielding Arn't those effectively the same? I think the only contract is "you shall not go too long until yielding". Or if you're designing for performance, not for responsiveness, it might be: "you shall not hold unto CPU and IO resources that you're not using".