[Python-Dev] Opcode cache in ceval loop

[Sven R. Kunze]

On 01.02.2016 21:35, Yury Selivanov wrote:
> It's important to understand that if we have a lot of cache misses 
> after the code object was executed 1000 times, it doesn't make sense 
> to keep trying to update that cache.  It just means that the code, in 
> that particular point, works with different kinds of objects.

So, the assumption is that the code makes the difference here not time. 
That could be true for production code.

> FWIW, I experimented with different ideas (one is to never 
> de-optimize), and the current strategy works best on the vast number 
> of benchmarks.

Nice.

Regarding the magic constants (1000, 20) what is the process of updating 
them?


Best,
Sven