Re: [RFC] Convert builin-mailinfo.c to use The Better String Library.

> El 7/9/2007, a las 15:58, Andreas Ericsson escribió:
> 
>> Yes, but that's what I said in the original email as well. C is just so
>> much more pleasant to write in that the only place you'd (sanely) use
>> asm is in exactly these tight loops, where the code is likely to be used
>> and reused until the algorithm it describes is no longer a viable option
>> for doing what it was originally designed to do.
>>
>> It still proves the point though, as surely as n+1 > n for any value 
>> of n:
>> Hand-optimized assembly is faster than compiler-optimized C code.
> 
> In a theoretical ideal world, yes; no one would argue that C is faster 
> than fine-tuned assembly.
> 
> But in the *real world* rewriting Git in assembly would be like painting 
> a house using a single horse hair instead of a paint brush or roller. 
> Your SHA-1 example is a perfect example of where you benefit from doing 
> a tiny embellished detail using the single hair (assembly) and leave all 
> the rest in C.
> 
> In the real world and not the theoretical ideal world, it's not just 
> about the diminishing returns you get from writing more and more of a 
> code base in assembly instead of just the performance-critical 
> bottlenecks; it's that you're more likely to make subtle mistakes or 
> even make things slower. GCC does a remarkable job of optimizing in a 
> huge number of use cases, and best of all, it does it for free. Personal 
> opinion, of course, but that's the way I think it is.
>