Re: How can you make idle processors pick up java work?

From:

Joshua Cranmer <Pidgeot18@verizon.invalid>

Newsgroups:

comp.lang.java.programmer

Date:

Mon, 30 Jul 2012 19:51:23 -0400

Message-ID:

<jv76m4$eja$1@dont-email.me>

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On 7/30/2012 7:27 PM, qwertmonkey@syberiaoutpost.ru wrote:

Is there a way to make these processors pick up/share work also, or
do you have to use some sort of scheduling framework on top of java?

Use multiple threads?

~
  a) I need to actually scan large text files (10+ million lines).
  b) On each line there is a NL sentence.
  c) That processing should be run only once, but as fast as possible.

Only 10M-line files?

The easiest way to do this is to just make a ThreadPoolExecutor and have
your main thread dispatch requests as fast as possible to the pool. Or
you can do the work pooling yourself, which may be faster since you're
not continually posting Runnable's, but timing results would be
necessary to convince me.

There are other options, but chances are, your disk drive is going to
saturate first (in short, it involves reading non-consecutive pages of
the file, which is generally a recipe for disaster).

--
Beware of bugs in the above code; I have only proved it correct, not
tried it. -- Donald E. Knuth