From: botp <botpena@...>
Date: 2012-02-04T10:36:44+09:00
Subject: Re: Basic Ruby performance

On Sat, Feb 4, 2012 at 12:27 AM, Dave Aronson
<rubytalk2dave@davearonson.com> wrote:
> On Thu, Feb 2, 2012 at 23:03, botp <botpena@gmail.com> wrote:
>
>>> (3..8).each do |x|
>>> t=Time.now();for a in 0..10**x;end; puts("#{x}  #{Time.now()-t}")
>>> end
>>
>> 3  0.000142406
>> 4  0.001344933
>> 5  0.014539207
>> 6  0.076141941
>> 7  0.737979205
>> 8  7.359555691
>
> Ummmm... yeah... every time you tell it to do ten times as many loops,
> it takes almost ten times as long.  What's so surprising?

i noticed the mult 10 too late. what i was emphasizing is that, given
the simple loop above, your point of acceptance should be less than
10**7. otherwise, beyond that, you' d get unacceptable response time.
just imagine,  7 seconds!   this would not be acceptable for database
apps for example w response times of less than 5 seconds.

kind regards -botp