dmd -run speed trends

[Witold Baryluk]

On Friday, 8 December 2023 at 10:07:48 UTC, Sergey wrote:
> On Thursday, 7 December 2023 at 16:32:32 UTC, Witold Baryluk 
> wrote:
>> I do not use `dmd -run` too often, but recently was checking
>
> Interesting project. Can you make it in the repo? Maybe others 
> will send PRs for other implementation and versions of 
> compilers..
> It could be interesting metric. Similar idea of the repo 
> (compilation only) for example here: 
> https://github.com/nordlow/compiler-benchmark

I think a better option that comparing to other languages (too 
many variables), would be to track performance of the compiler on 
a public dashboard.

Compile few variants, and track compile time to object code, 
object code size, linking time, final executable size, and final 
executable runtime and peak memory usage of compiler and 
executable:

Few variants:

* No phobos, just some constructs, plus maybe `extern(C) printf` 
for IO. Maybe few files (one with no templates, one with some 
templates, another with some mixins and CTFEs).
* Few minor things from phobos imported (i.e. `std.stdio`, 
`std.range`, and maybe 1 or 2 more things) and some 
representative functions used from there.

Something like this for Mozilla in the past 
https://arewefastyet.com/win10/benchmarks/overview?numDays=60 
https://awsy.netlify.app/win10/memory/overview?numDays=60

Or similar to this https://fast.vlang.io/ for V programming 
language  (as you can see there, they can compile entire compiler 
in about a second, and hello world compile and link in 90ms - 
which is actually faster than when they started with the project).