[Python-Dev] New branch for r23c2 work

[Stuart Bishop]

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On Tuesday, July 22, 2003, at 08:36  AM, Skip Montanaro wrote:

> It looks like the Mac OS X implementation of getaddrinfo is just dog 
> slow.
> I instrumented setipaddr with calls to gettimeofday() to see how long
> different sections took.  It turns out that getaddrinfo() is hideously 
> slow:

This would be hideously slow by design - Python is sitting idle while
the lookupd directory is queried (you can tell as lookupd process is
chewing CPU).

I don't think this should affect an Apple release - Python 2.2.0 as
shipped with OS X 10.2 has the same behavior.

> when you get into setipaddr() name[0] will always be '\0' and so 
> you'll take
> the first branch.  Do you need all of getaddrinfo()'s bells and 
> whistles to
> properly set up addr_ret in this case?  At worst, can't the 
> getaddrinfo()
> call be made once and then cached?

'man lookupd' says 'lookupd keeps a cache of recently located items
to improve system performance', so Python shouldn't have to (?)
I've found no way of determining what queries are being sent to lookupd 
:-(

- -- 
Stuart Bishop <zen@shangri-la.dropbear.id.au>
http://shangri-la.dropbear.id.au/

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