Hey Jay, I actually registered yesterday on your game to get an idea of a game hosted on GAE. I'm enjoying it!
But the new pricing greatly disturbs me. I'm not sure if running this game on GAE is actually viable at all in terms of costs. I did some research on the new pricing (for example http://code.google.com/appengine/kb/postpreviewpricing.html#operations_charged_for) and as far as I can see, datastore reads and writes both have a similar cost. And they don't charge per query, but they charge per object (row) fetched. I did some calculations on my current database data, and CQ2 generates about 1M database writes for something like 650 daily users. That's about 3 times as much as your game does, which would also triple the bill. That's a lot, but something I can handle. Since most of the writes are one-record only, the total cost would be $1,5 per day for 1000 users. However, the datastore reads are the real issue here. I have about 4M SELECT queries for 650 users. Considering that many of these return more than one row, I can easily reach 10M datastore reads each day, for an additional cost of $2,8 each day. This results in a total of €159 per month, for 1000 users. My estimations for the Amazon cloud were a cost of $65 per 1000 users each month (based on our current system and their instances), which would make GAE 3 times more expensive. That's quite worrysome, even though these statistics were generated based on relational database writes as opposed to datastore writes. It's hard to predict if I will need less or more datastore operations to achieve the same result. I'm actually thinking less, because I can cache a lot of static data into memory. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-appengine/-/_-Bf3oAZxu8J. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
