CODEWITHSUNDEEP
javamultithreading
lovespring
lovespring

Reputation: 19579

Is the wait(timeout) unreliable ?

after the timeout, the thread will also need to compete for the own of the monitor or the lock.

then, at the worst case, this could be a long time, and much longer then the timeout

is it?

Upvotes: 0

Views: 51

Answers (1)

Tim B
Tim B

Reputation: 41188

Yes. You have no guarantee when the thread will next execute. Just that it will happen sometime after the sleep time

Things like the ScheduledExecutorService mitigate this with scheduleAtFixedRate but they still cannot guarantee that it will run exactly at that time.

To avoid this you need a Real Time Operating System.

However in practice most computers are fast enough that this just isn't an issue unless you are doing something that is incredibly time-critical. The thread will execute within miliseconds of your desired time most of the time.

Upvotes: 3

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