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List:       grinder-use
Subject:    Re: [Grinder-use] errors when running multiple procs/threads
From:       Philip Aston <philip.aston () oracle ! com>
Date:       2009-05-19 10:24:13
Message-ID: 4A1288CD.8040102 () oracle ! com
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Klavs Klavsen wrote:
> Philip Aston said the following on 2009-05-19 11:53:
>> Klavs Klavsen wrote:
>>  
>>> Philip Aston said the following on 2009-05-19 11:31:
>>>      
>>>> Your script makes a single request, so will be very rapidly opening
>>>> and
>>>> closing connections.
>>>>
>>>> Adding "grinder.sleep(1000)" after "self.page1()" will most likely
>>>> cure
>>>> your problem.
>>>>
>>>>             
>>> Will the script still be able to push the website? I want it to try
>>> as many TPS as possible - and the current test apache can push out
>>> about 10.000 TPS.
>>>       
>>
>> The constraining factor currently appears to be how fast your OS can
>> cycle sockets. If the "single request per connection, no sleep time" use
>> case is realistic, you should think about roping other load injector
>> machines into your set up. This is easy with The Grinder.
>>   
> It seems to be realistic - after setting the eph. ports etc. as pr.
> the link you gave me, there's no longer any errors :)
> And the limit was actually ~30.000 TPS on one server running Apache
> "it works" page :)
>
> what do you mean with "roping other load injector machines into your
> setup"?
>
> I currently have 4 "agent machines" that only run the grinder agent
> and connect the a 5. machine - which runs the console.

Exactly that - using additional hardware.

It sounds like you're on your way now anyway.

- Phil


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