[Mesa-dev] [PATCH] winsys/amdgpu: add a fast exit path into amdgpu_cs_add_buffer

[Jan Ziak]

On Mon, Jan 30, 2017 at 5:08 PM, Marek Olšák <maraeo at gmail.com> wrote:
> On Mon, Jan 30, 2017 at 4:41 PM, Jan Ziak <0xe2.0x9a.0x9b at gmail.com> wrote:
>> Hello
>>
>> Just a note about the future of Mesa:
>>
>> It is likely that optimizing Mesa will lead you (Marek) to consider
>> generative programming some years into the future:
>>
>> Optimal code is basically a form of efficient adaptation to current
>> circumstances. Generating the optimal code by hand can be
>> inefficient/tedious and it might be possible to generate some of it by
>> a program. The generator reads in C/C++/other code&data and outputs
>> optimized C/C++ code containing the necessary guards, data parsers,
>> specialized data structures, etc. The machine-generated code can be an
>> order of magnitude larger than the input to the generator - which is
>> one of the main reasons generative programming increases programmer
>> productivity in the long term.
>>
>> The generator itself can be written in any programming language you
>> prefer (although personally I only recommend a compiled language with
>> static types).
>
> If it were so simple, somebody would have done it already.
>
> Marek

It is simpler, more productive and less error-prone for Mesa-like
libraries than trying to optimize critical C code&data structures by
hand.

It is impossible to improve Mesa performance to a next-generation
level without refusing some hand-written code. The human brain is
incapable of handling so many states.

If you don't try it you will never know how far it can go in terms of
optimizing Mesa.

Jan