From: "Ara.T.Howard" <Ara.T.Howard@...>
Date: 2005-07-16T07:35:22+09:00
Subject: Re: [QUIZ] Sampling (#39)

On Sat, 16 Jul 2005, Ezra Zygmuntowicz wrote:

> I get pretty much the same size of the file every time I run this. And if you 
> look at the original quiz posting by James Edward Grey you will see that the 
> sample run data that he said was the time to beat had a size of  49011436 
> whereas mine is 49444444. So yeah mine is a bit skewed higher I guess. But 
> when I look through the results it looks like a nice random spread covering 
> all the numbers in the limit. My solution is really very simple and almost 
> all the time it takes to run is spent on IO because when I run the following:
> ez$ time ruby -e'1.upto(5_000_000) {|i| puts i} ' > out
>
> real    0m27.236s
> user    0m23.802s
> sys     0m0.998s
>
> So it takes about 13 seconds for the math and 27 seconds for the IO.

wow.  you are right there.  i thought for sure doing a single io call (puts
array) would be faster.  i know ruby buffers, but i thought the function calls
alone would kill you doing many puts.

cheers.

-a
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