[Twisted-Python] How to diagnose slowness

exarkun at twistedmatrix.com exarkun at twistedmatrix.com
Tue Jan 26 07:43:58 EST 2010

On 09:52 am, gabriel.rossetti at arimaz.com wrote:
>Hello everyone,
>I have noticed slowness sometimes in between two twisted apps. It
>doesn't happen often,
>and I'm not sure where it comes from. It may either be when the msg is
>sent, that it really
>isn't sent until after a delay (why?), or when the other service
>receives it, it takes time to
>process the msg. The second idea may be easier to find, I haven't been
>able to though. If
>I send the same msg, sometimes it's slowed down, and sometimes not. 
>what I see
>both of my suggestions may be happening. These msgs are XMPP based and
>I'm using
>Twisted 8.1.0. Does anyone have any tips on diagnosing this problem?

Instrument the programs involved until you can isolate where the delay 
actually happens.


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