Re: [Caml-list] Sequential speed 4.12.0 vs 4.13.1 vs multicore (Was: The road to OCaml 5.0)

[Christophe Raffalli <christophe@raffalli.eu>]

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Hello,

First I have cleaned the inlining instruction and get better result leting
flambda deciding alone. This leads to

36s with 4.13.1 sequential
36s with 4.12.0 sequential
32s with 4.12.0 multicore (but not using any parralelism)

So being more reasonable with inlining annotation yields no more
changes between 4.13.1 and 4.12.0.

Still I am surprised that multicore is better (should expect a bit worth ?)

>
> Christophe: please put your benchmark online somewhere so that we can make our
> measurements.  Without reproducibility, your initial message is useless. 
> Thanks.

The code is there (it uses functors a lot, could be a good bench for flambda):

https://github.com/craff/hypersurfaces.git

and depends from (opam version might not be sufficient)

https://github.com/craff/gles3.git
https://github.com/craff/pacomb.git

and other opam packages.

If you "opam pin ." the three git repos above everything should work.

The command to test:

dune exec --release Hyper -- tests/hard/hilbert-sextic.txt -b

It prints its own timing as below among other messages:
   total:   36.329s (   0.012s self) for      1 call(s)

You can use other files in tests or tests/hard.

> - Xavier Leroy
>
H

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