You should contact Google and request an increase
http://code.google.com/support/bin/request.py?contact_type=AppEngineCPURequest

On 27 Mrz., 09:37, unacowa <[email protected]> wrote:
> My application needs more than 50 request/second.
>
> I found some warning logs, that returns 500 error page.
> Error log says:
> """
> Request was aborted after waiting too long to attempt to service your
> request. Most likely, this indicates that you have reached your
> simultaneous dynamic request limit. This is almost always due to
> excessively high latency in your app. Please 
> seehttp://code.google.com/appengine/docs/quotas.htmlfor more details.
> """
> The error has 0cpu_ms, 0api_cpu_ms, but it cost just 10000ms to return
> the page with 500 error.
>
> I post this thread, but no 
> solution.http://groups.google.com/group/google-appengine-python/browse_thread/...
>
> So I take a very simple test for scalability.
> Deploy the very simple webapp "Hello Wolrd" application with
> time.sleep(0.3).
> # Likehttp://code.google.com/appengine/docs/python/gettingstarted/usingweba...
> # For emulate real application, insert time.sleep(0.3) after def
> get(self) statement.
>
> Result:
>  * 10request/second test is good.
>    * All request returns 200 page by 330ms. (300ms is time.sleep(0.3))
>  * 50request/second test is little good.
>    * Some result takes too slow. almost returns 200 page by 330ms. but
> some page takes more than 3000ms.
>  * 100request/second test is not good.
>    * Returns many 500 errors.
> Of course billing status is much.
>
> How can I get more scalability?
>
> Very sorry for my poor english, but I'm in big trouble.
>
> Thanks in Advance,
> unacowa

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