Re: [google-appengine] New Billing: Absolutely make sure you set Max Idle Instances to a fixed value

2011-10-16 Thread Tim
On Thursday, October 13, 2011 1:06:48 PM UTC+1, Emlyn wrote: > > But I'll tell you what; the effect of multi-threading on appengine > python app instance pricing warrants a good hard look, with numbers > and tables and graphs and whatnot. Reading your stuff in detail has > convinced me to put it

Re: [google-appengine] New Billing: Absolutely make sure you set Max Idle Instances to a fixed value

2011-10-13 Thread Emlyn
On 13 October 2011 21:42, Jeff Schnitzer wrote: > Let me summarize: > > You ran an experiment and discovered that GAE left idle instances > running, above and beyond your max-idle-instances setting, for your > application at the time that you ran the test.  Ok. Well, that test was in fact designe

Re: [google-appengine] New Billing: Absolutely make sure you set Max Idle Instances to a fixed value

2011-10-13 Thread Jeff Schnitzer
Let me summarize: You ran an experiment and discovered that GAE left idle instances running, above and beyond your max-idle-instances setting, for your application at the time that you ran the test. Ok. Unfortunately there's little reason to believe that this behavior (lots of free instances) wi

Re: [google-appengine] New Billing: Absolutely make sure you set Max Idle Instances to a fixed value

2011-10-13 Thread Emlyn
On 13 October 2011 19:46, Jeff Schnitzer wrote: > I'm afraid you are still confused. Possibly not. > You have ignored the entire point > of the "max idle instances" slider in the first place. I might be accused of ignoring its intended function and focusing on its practical function. > GAE kee

Re: [google-appengine] New Billing: Absolutely make sure you set Max Idle Instances to a fixed value

2011-10-13 Thread Jeff Schnitzer
I'm afraid you are still confused. You have ignored the entire point of the "max idle instances" slider in the first place. GAE keeps idle instances around so that sudden bursts of traffic don't cause users to sit around waiting while your django/spring app spends 5+ seconds loading. Will turnin

Re: [google-appengine] New Billing: Absolutely make sure you set Max Idle Instances to a fixed value

2011-10-13 Thread Emlyn
np Johan. I was confused earlier on by posts such as http://blorn.com/post/10013293300/the-unofficial-google-app-engine-price-change-faq which focuses on multithreading to get pricing down, which I think is just wrong. There are lots of good reasons to write multithreaded code, but AppEngine pri

Re: [google-appengine] New Billing: Absolutely make sure you set Max Idle Instances to a fixed value

2011-10-13 Thread Johan Euphrosine
Hi Emlyn, Thanks for sharing those articles, it is very nice that you were able to backup the billing formula with hard facts. As it was discussed in the groups during the pricing model change the billing formula under the new model will be: billable_instances_rate = min(active_instances_rate + m