[OT] Three Optimization Tips for C++

[Andrei Alexandrescu]

On 12/21/12 7:23 AM, Peter Alexander wrote:
> On Thursday, 20 December 2012 at 05:29:46 UTC, Andrei Alexandrescu wrote:
>> Vote up!
>>
>> http://www.reddit.com/r/programming/comments/155ivw/three_optimization_tips_for_c_video/
>>
>>
>>
>> Andrei
>
> I think the most interesting thing from that talk is when you said that
> Facebook's back end code is spending 15% of its time converting ints to
> strings.

Not all back end code. Certain applications.

> I know you are looking at these small functions as simple examples of
> the optimisation tips you are giving, but I hope this isn't the kinds of
> optimisations you are doing at the Facebook. The problem isn't that the
> conversion is slow, the problem is that you are converting at all. Don't
> use text based formats for performance sensitive data!
>
> Of course, maybe the 15% claim was pure exaggeration. I really hope
> that's the case.

Text representation has its own advantages.


Andrei