[Sussex] Ruby DNS resolver

[Nic James Ferrier]

Ronan Chilvers <ronan at thelittledot.com> writes:

> Now via the ruby resolv library:
> ronan at rncubuntu:rbl $ time ruby -e "require 'resolv'; res=Resolv::DNS.new; p res.getresource('dynablock.njabl.org',Resolv::DNS::Resource::IN::A)"
> #<Resolv::DNS::Resource::IN::A:0xb7cb27b0 @address=#<Resolv::IPv4 209.208.0.104>>
>
> real    0m5.036s
> user    0m0.024s
> sys     0m0.004s
>
> Not whoosh!!!!

<snip/>

> So it seems that the resolv libraries are the bit that's slow... seems
> excessive though...

Have you tried:

  strace ruby -e "require 'resolv'; res=Resolv::DNS.new; p res.getresource('dynablock.njabl.org',Resolv::DNS::Resource::IN::A)"

to see exactly what the ruby code is doing? It seems like it's not in
the Ruby interpreter that much.


-- 
Nic Ferrier
http://www.tapsellferrier.co.uk   for all your tapsell ferrier needs