Issue 8788 - Every day around 9 AM Brussels time, huge drop in GAE performance
Well, the bug report doesn't really invite quick attention. Simply reporting your observations is not enough: you should position yourself as a competent customer, by explaining what you have done to ensure the problem isn't on your side. Mention the code hasn't changed, that you have no database cleanup cronjobs or similar running that could be interfering, etc.My first instinct when I see a report like this is: he probably has some cronjob running he forgot about; perhaps one whose performance decreased with O(n^2).By which I'm not saying that Google is right in not replying for days, but by which I am saying that as a customer, there are easy ways to get attention beyond shouting and threatening. Show it's an interesting problem and you're bound to get some techie's attention.