[Tutor] Multiple threads
d at davea.name
Wed Nov 16 19:22:14 CET 2011
(You're top-posting. Put your remarks AFTER what you're quoting)
On 11/16/2011 12:52 PM, Jack Keegan wrote:
> Ok, I thought that processes would do the same job as threads. So would the
> general rule be some thing like so:
> If I want another piece of work to run (theoretically) along side my main
> script, and I want to share data between them, I should use a thread and
> share data with the thread-safe queue.
> If the work I want done can function and complete on its own, go for a
> Would that be about right?
Yes, with all the caveats I mentioned before. With some language
implementations, and with some operating systems, and on some
CPU-systems, the guidelines could be different. They all trade off in
ways too complex to describe here.
For example, if a thread is mostly doing I/O, it may be just as
efficient as a separate process, even if sharing data isn't an issue.
And in some languages, sharing data between processes isn't all that
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