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Re: Terrible performance results of echo_test in local network

by Nick Joyce :: Rate this Message:

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Hi,

Did you ever get to the bottom of this?

Nick

On 5 Jun 2009, at 10:50, Kay Schluehr wrote:

> Nick Joyce schrieb:
>> That is really weird ..
>>
>> What is the ping between the two machines? Can you switch logging  
>> on in pyamf :
>>
>> import logging
>> logging.basicConfig(level=logging.DEBUG,
>>           format='%(asctime)s %(levelname)-5.5s [%(name)s] %
>> (message)s')
> Logging is activated by default and may consume a little time for  
> printing to stdout.
>
> ( Note that the application is broken at echotest/python/util.py.  
> The WSGIGateway object is initialized with an unavailable "logging"  
> keyword argument. The base class creates the logger on its own in  
> the object constructor. So I just removed it ).
>>
>> and rerun the echo_test and attach the log - this would be able to  
>> show if pyamf is taking 8 seconds minimum to process the request or  
>> if the time is elsewhere ?
>>
>> I would also suggest using something like Firebug to view the  
>> network timeline and see where the lag is ..
>>
>> Using echoserver isn't built for performance but even so 8+ seconds  
>> is crazy!
> I reproduced the data and zipped the results. One can download them  
> here
>
> www.fiber-space.de/misc/echotest.zip
>
> Firebug essentially confirmed the echo_test logging results with  
> some higher resolutions at some places ( message queue ). One  
> seemingly cannot export Firebug logs. So I added also two  
> screenshots for providing at least an impression.
>
> I have a second older XP notebook and used it to run echo_test.swf  
> and got comparable results. I also switched the roles of the  
> computers taking part as client and server. So it is not a problem  
> of a single machine. There is something that decelerates the whole  
> communication process but what can it be?
>
> Regards, Kay
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