Python threading (was: Re: global interpreter lock not working as it should)

[Michael Hudson]

a-steinhoff at web.de (Armin Steinhoff) writes:

> As an intermediate solution I have only inserts two 
> lines in cevel.c  ... here some performance numbers. 
> 
> Performance unmodified:
> 
> time ../../python test_threading.py

Are you aware what test_threading does?

Lines like

        delay = random.random() * 2

make me doubtful of the use of this test as a benchmark...

[...]
>     4.16s real     0.14s user     0.02s system
[...]
>     2.66s real     0.16s user     0.02s system
> #
> 
> The performance is increased by ~90 %

Even given the apparent uselessness of this benchmark, where do you
get 90% from here?

Cheers,
M.

-- 
  if-you-need-your-own-xxx.py-you-know-where-to-shove-it<wink>-ly 
  y'rs - tim
              -- Tim Peters dishes out versioning advice on python-dev