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Re: Performance of computing cross derivations
From: |
Ludovic Courtès |
Subject: |
Re: Performance of computing cross derivations |
Date: |
Thu, 11 Jan 2024 13:35:23 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
Hi,
Christopher Baines <mail@cbaines.net> skribis:
> I think you're right, while I send some other changes in #68266, I think
> it's this change around make-rust-sysroot that has pretty much all the
> effects on performance.
>
> I think the tens of thousands of duplicated packages from cross-base
> that I was looking at are almost entirely coming from
> make-rust-sysroot. As Ludo mentions in [1], maybe this has something to
> do with use of cross- procedures in native-inputs, although I'm not sure
> that moving those calls out of native-inputs is a correct thing to do.
>
> I don't know what the correct approach here is, but I think something
> needs doing here to address the performance regression.
I probably missed it in the thread: what commit caused the regression,
and how can I test any changes? I’m willing to help but I missed some
of the context.
Thanks,
Ludo’.