Brian Candler
5/4/2007 7:46:00 AM
On Fri, May 04, 2007 at 02:26:13PM +0900, J. Wook wrote:
> ... iterate for success_url, invalid_url, error_url
>
> end
>
> puts "Total: #{downloaded/1000} KB, #{Time.now - start_time} seconds"
>
>
>
> Result was... very strange.
>
> time
> MacBook about 20 sec
> FreeBSD6.1 about 11 sec
> Ubuntu about 73 sec (What's wrong with it?????)
>
> (ruby1.8.6, same h/w spec of FreeBSD and Ubuntu)
>
>
> I couldn't find any configuration difference (dependent library, ruby
> version... etc)
>
> Why this strange performance drop occurs on Ubuntu?
To debug this, first run your loop separately for redirect_url only,
success_url only, invalid_url only, and error_url only. Maybe only one of
these is suffering large delays. That will help narrow the problem.
My guess is it's something to do with DNS resolution. Check your
/etc/resolv.conf is identical between all three machines.