From: Bill Kelly <billk@...>
Date: 2006-02-01T00:17:58+09:00
Subject: Re: TCP/UDP server weird lags on 1.8.4 linux

Hi Caleb,

From: "Caleb Tennis" <caleb@aei-tech.com>
> >
>> Apparently that's a 5 second (5000 msec) delay?  How can I find where
>> that's coming from?
> 
> I had this problem with one of my applications too.  Turns out it was  
> trying to do name resolution, but the remote computer didn't have any  
> DNS info anywhere.
> 
> I think if you throw in a TCPSocket.do_not_reverse_lookup = true,  
> that should fix the delay.

Interesting, thanks.  I added that, but the strange delay still
occurs when doing UDP I/O.  (The strace output looks the same, it
gets stuck in poll().)

I'll try to make a small program to reproduce the behavior...


Regards,

Bill