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

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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

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How can you make idle processors pick up java work? qwertmonkey@syberiaoutpost.ru - 2012-07-30 23:27 +0000
  Re: How can you make idle processors pick up java work? David Lamb <dalamb@cs.queensu.ca> - 2012-07-30 19:34 -0400
  Re: How can you make idle processors pick up java work? Patricia Shanahan <pats@acm.org> - 2012-07-30 16:40 -0700
  Re: How can you make idle processors pick up java work? Joshua Cranmer <Pidgeot18@verizon.invalid> - 2012-07-30 19:51 -0400
  Re: How can you make idle processors pick up java work? "John B. Matthews" <nospam@nospam.invalid> - 2012-07-30 23:45 -0400

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