1. when multiple threads run in parallel on a multicore system, would the
more threads for the same task always finish earlier when the number of
threads is less than the number of cores? why?
我想应该是错的 可是不知道该怎么解释 不知道有没有什么例子
2. in what situation, applications using kernel thread would not always have
a better performance than using user thread?
我目前想到的是建立和管理user thread会比kernel thread还快
可是想不到有什么实际的例子
谢谢