Re: `map-derivation' is too slow for meaningful usage

[Ludovic Courtès]

Hi,

Sergio Pastor Pérez <sergio.pastorperez@outlook.es> skribis:

> On 06-09-2024 12:17, Ludovic Courtès wrote:
>> Perhaps we could try and address those performance issues, and then see
>> if we could come up maybe with a “derivation transformation” framework
>> to make it more approachable?
>
> That sound good to me. Do you have any idea on what could be the bottleneck?

No idea, but the implementation is likely naïve: I wrote once, tested it
on simple cases, but it never got any use beyond that.

I would start by profiling it with (statprof), and then also look at
caching issues (see the ‘GUIX_PROFILING’ environment variable).

HTH!

Ludo’.