On Tue, May 24, 2011 at 10:05 PM, Stefan Behnel <stefan_ml@behnel.de> wrote:
Maciej Fijalkowski, 24.05.2011 13:31:
CPython was not designed for CPU cache usage as far as I'm aware.
That's a pretty bold statement to make on this list. Even if it wasn't originally "designed" for (efficient?) CPU cache usage, it's certainly been around for long enough to have received numerous performance tweaks in that regard.
As a statement of Guido's original intent, I'd side with Maciej (Guido has made it pretty clear that he subscribes to the "first, make it work, and only worry about making it faster if that first approach isn't good enough" school of thought). Various *parts* of CPython, on the other hand, have indeed been optimised over the years to be quite aware of potential low level CPU and RAM effects (e.g. dicts, sorting, the small object allocator). Cheers, Nick. -- Nick Coghlan | ncoghlan@gmail.com | Brisbane, Australia