[Twisted-Python] Stackless Twisted shocking performance

Travis Kiel travis at crystaltech.com
Mon Mar 23 12:45:48 EDT 2009


This is a shot in the dark, but have you tested the twisted performance with the nagle algorithm disabled?
Travis W Kiel

-----Original Message-----
From: twisted-python-bounces at twistedmatrix.com [mailto:twisted-python-bounces at twistedmatrix.com] On Behalf Of Jean-Paul Calderone
Sent: Sunday, March 22, 2009 4:35 PM
To: Twisted general discussion; stackless at stackless.com
Subject: Re: [Twisted-Python] Stackless Twisted shocking performance

On Sun, 22 Mar 2009 18:32:30 -0500, Jean-Paul Calderone <exarkun at divmod.com> wrote:
>On Fri, 20 Mar 2009 18:16:47 +0000, Simon Pickles <sipickles at googlemail.com> 
>>As more updates are sent zone->hub, per second, the incoming 
>>client->hub->zone messages take SECONDS to get thru! This is with approx 50 
>>messages per second between a single zone and the hub.
>"message" is a very non-specific unit of message.  For example, I just

Ahem, excuse me.  Unit of *measure*. :)

>threw together a PB demo that does 1754 messages per second.  That's a
>lot more than your 50/sec, but who knows why?  You'll need to narrow down
>the bottleneck a bit more precisely before there's much chance of getting
>rid of it.
>Twisted-Python mailing list
>Twisted-Python at twistedmatrix.com

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