"Do you know by heart?" is very much the wrong question though. :-) Benchmarking is surprisingly hard. After some digging, you might discover that you're actua

"Do you know by heart?" is very much the wrong question though. :-) Benchmarking is surprisingly hard. After some digging, you might discover that you're actually measuring how long it takes to bring up a TCP connection, or how long it takes PostgreSQL to serialise the JSON from its stored form. It could be differences in the driver layer Django is using. Coming up with the corrct experiment can be the toughest part of doing the science.