[medusa] Re: CPU utilization optimization? PROBLEM FOUND!

[Jim Fulton]

Weiss Blitz wrote:
> 
> Ok, I think I found the problem...
> 
> I developed a Medusa based instant messaging server running on a dual-
> processor Compaq Proliant box under Win2000 Server.
> 
> I noticed Medusa idled at 1-2%, one connection comes up and the CPU
> utilization jumps to 100%!
> 
> Found that the asyncore.py select loop was being pegged as soon as
> the first connection was made. Also noticed this was so because the
> asynchat.writable method was always returning a '1' even when the
> ac_out_buffer output buffer was empty. I replaced the 'is' operator
> with the '==' and it now seems to work normally.

Interesting. Did you have the select timeout set very low?

Jim

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