From: Robert Klemme <shortcutter@...>
Date: 2013-03-18T01:17:57+09:00
Subject: Re: control the concurrent thread numbers

On Sat, Mar 16, 2013 at 4:01 PM, Ken Paul <lists@ruby-forum.com> wrote:
> Adam Prescott wrote in post #1101931:
>>
>> As Joel said, what's the problem you're really trying to solve?
>
> The real problem is that there are plenty of files on disks and a long
> list of words stored in an array. I'd count the total appearing times
> for every words among these files.
>
> I need to run this task with a multiple threads program. Each thread
> would take one word from the array by shifting a word to ensure other
> thread will not do the same task at the same time, then do the counting.
> However, the total numbers of thread should be controlled at a number
> less than 10.

That's a *very* inefficient way to partition the work because you will
be reading each file over and over again - and file IO is slow.
Rather you would read each file only once and count all words and
finally combine counts.

Cheers

robert


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