(Pycon mini JP 2011 LightningTalk) About benchmark utility for Python.

1. PyCon mini JP 2011 Lightning Talk
Benchmarker
a good friend for performance
makoto kuwata
http://www.kuwata-lab.com/

2. Profile
@makotokuwata
http://www.kwuata-lab.com/
Perl is the
Ruby/PHP/Python programmer
CHAMPION!
Creator of Erubis (*)
Python4PHPer
(*) default template engine on Rails 3

3. Question

4. Which is faster?
https://gist.github.com/800384

5. Benchmark
'+' op is the fastest
for short strings
plus op 0.624sec
format 0.887sec
join 0.709sec
0 0.2 0.4 0.6 0.8 1
second per million

6. Which is faster?
https://gist.github.com/801429

7. Benchmark
Not Same!
'+=' op 0.431sec
'=' & '+' 0.439sec
0 0.1 0.2 0.3 0.4 0.5
second per million

8. Which is faster?
https://gist.github.com/801429

9. Benchmark
'+=' op 0.545sec
'=' and '+' Too Slow! Unmeasurable!
0 0.4 0.8 1.2 1.6 2
second per million

10. Why?

11. [OT] Python v.s. Perl

12. [OT] Python v.s. Perl
Perl is
AWESOME!

13. About Benchmarker

14. Benchmarker
Benchmarking utility for Python
A good friend for performance
http://pypi.python.org/pypi/Benchmarker/

15. Example Code

16. Output

17. Remove same fot-stmt

18. Repeat all benchmarks
Remove min & max results

19. Command-line Options

21. thank you