从套接字流中读取时是否需要线程休眠？

Question

I am reading from a socket input stream like this

BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
String line;

while((line = in.readLine()) != null){
   // do something
   Thread.sleep(10); // for example 10ms
}

Now, the read method of an input stream blocks until data is available.

In this case is cooling-down the thread a good idea? After 10ms it will be blocking anyway.

Please do not tell me about non-blocking IO, I know about that.

I am just curious whether it helps performance/CPU in anyway.

Answer 1

No . There's no reason to sleep. Why artificially slow down the read loop? Let it read data as fast as it comes in.

Answer 2

If you want to let other threads a cpu time, you should use:

Thread.yield();

But I'm not think it's necessary here- let the system thread scheduling do its job- it's pretty good.