Appengine, performance degradation with python27

Question

I wanted to test python27 on appengine so I have migrated my app from python25. Performance got more than 2x slower for every request! Then I\'ve returned to python25 and perfor

Answer 1

As far as I know, Python 2.7 should be faster than 2.5. However, there are some factors that can influence speeds:

• The way the binary is compiled;
• Whether your libraries (such as Memcache) are compiled as C(++) or Python. A C++ module is, of course, faster than the Python equivalent;
• The server it's on - I haven't ever used App Engine but I'd assume that a server only runs either Python 2.5 or Python 2.7, since mixing them would be a waste of resources. If the 2.7 servers are used a lot more than the 2.5 servers and App Engine hasn't compensated for this, you'll notice the performance go down as well.

These are the first 3 things that I came up with, but there are a lot of factors. Even the weather could in theory affect performance.