[pypy-dev] speed.pypy.org launched

[Carl Friedrich Bolz]

On 02/26/2010 10:59 AM, Stefan Behnel wrote:
> Carl Friedrich Bolz, 25.02.2010 18:38:
>> On 02/25/2010 04:10 PM, Miquel Torres wrote:
>>> As some of you already know, there is a new performance site online:
>>> speed.pypy.org.
>> [...]
>>
>> I'm quite impressed, this is very cool work and a good improvement over
>> the current plots. Thanks for doing this!
>>
>> One thing that I would really find useful are error bars in the timeline
>> view. This would help us judge whether up-and-down movements are within
>> the margin of randomness, or whether it is a real effect. I don't know
>> how annoying they are to implement though, no clue whether the plot lib
>> supports that. There should be enough information about errors in the
>> json files, as far as I remember.
>
> The standard deviation is commonly considered meaningless for benchmark
> results. All that really matters is the fastest run, everything else is
> just fog.

I disagree with this, please read the following paper:

http://buytaert.net/files/oopsla07-georges.pdf

Cheers,

Carl Friedrich