> how does the instance work? If I have multiple modules in one app, how
> many instance is that? Or does it just mean that for as long as my app
> is a singleton, no matter the amount of modules I have, it is still a
> single instance.

> At what point is Google distributing my app unto more than one server,
> which will definitely cause more than one instance? Is it possible to
> control the instances created? I mean like force App Engine to manage
> resources within a fixed number of instances instead of trying to be
> so perfect (unmanaged) that it costs me lots of money.

> Greg, I'll be looking forward to your answers on these FAQs because
> I'll be giving a talk on Google App Engine at upcoming CloudCamp
> event.

> Regards

> On 5/12/11, Kenneth <kennet...@aladdinschools.com> wrote:

> > Greg mentioned he was putting together anFAQso let's help him out!

> > If you're going to answer this just put in your question into a single line,
> > let's not try and answer them here or give opinions, there's plenty of other
> > threads for that. I do understand that Google doesn't have answers to some
> > these.

> > Here's my list:

> > 1) What is the time granularity of the instance pricing?  ie if I have an
> > instance up for 5 minutes, what am I charged, $0.08 / 60*5?
> > 2) Will I be able to tune the scheduler myself, ie set it to performance or
> > low cost,  Will I be able to limit the min or max number of instances
> > created (with the obvious impact on user experience)?
> > 3) Python concurrency, will this require any code changes, do you have any
> > estimates based on your testing of the number of well behaved requests per
> > second a single instance will be able to handle for a given framework?
> > 4) Database charges, when can you give us more details over what Max gave in
> > the other thread, are you charging for deletes, what do you expect the ratio
> > to be between the new pricing metric and the Datastore API calls metric we
> > have today?
> > 5) Will you be charging differently for instances that use different amounts
> > of memory, since this seems to be the cost that you're going after that
> > isn't charged for in the current model.

> > Thanks,
> > Kenneth

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> Odeyemi 'Kayode O.http://www.sinati.com. t: @charyorde