Hey David,
A query counts as one read plus one read per entity returned. The
costs of various operation are detailed on the billings page:
http://code.google.com/appengine/docs/billing.html
You probably need to come up with a way to filter your queries so
they only return what is needed. Or, come up with some other way to
make the reads more efficient. There are a number of ways you could
achieve this, but without knowing more about what you're doing it is
hard to suggest something.
Most likely, you'd need (or want) to sync memcache with the
datastore yourself. To quickly test how much this would help you
could cache the query results, then clear the cache each time
something is added. It is simplistic, but it might give you an idea.
Alex's suggestion about the channel API is also good. The free
quotas are sufficient for small apps, but for anything actually using
resources they won't stretch very far.
Robert
On Sun, Feb 5, 2012 at 00:45, David <[email protected]> wrote:
> My application (studyvolved) was sending 3 post requests a second to
> constantly update a user's page with the appropriate information. I
> managed to succeed my 50k read operations in 13 successfully served
> requests by 1 instance. This took between 30 seconds and 2 minutes. I
> am reworking the app to only change on user refresh but I would
> eventually like to return to the constantly updating model. Does
> anyone have suggestions for how to do live updates without using too
> many resources? What constitutes a read? Is a .gql() call more than
> one read? Also, would my app's inefficiencies have shown up when I was
> hosting it on my computer? It seemed fine then.
>
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