GNU bug report logs - #67742
[PATCH] gnu: ci: Build tuned packages for common baselines.

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From: Ludovic Courtès <ludo <at> gnu.org>
To: Efraim Flashner <efraim <at> flashner.co.il>
Cc: 67742 <at> debbugs.gnu.org
Subject: [bug#67742] [PATCH] gnu: ci: Build tuned packages for common baselines.
Date: Mon, 11 Dec 2023 22:37:26 +0100

Hi,

Efraim Flashner <efraim <at> flashner.co.il> skribis:

> * gnu/ci.scm (%x86-64-micro-architectures): Replace specific
> micro-architectures with generic ones.
>
> Change-Id: Iee2f65376a00ad2ee5fb393c2e64c07f866d8116
> ---
>  gnu/ci.scm | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gnu/ci.scm b/gnu/ci.scm
> index 279dd4d910..5c093ae135 100644
> --- a/gnu/ci.scm
> +++ b/gnu/ci.scm
> @@ -372,7 +372,7 @@ (define package->job
>  
>  (define %x86-64-micro-architectures
>    ;; Micro-architectures for which we build tuned variants.
> -  '("westmere" "ivybridge" "haswell" "skylake" "skylake-avx512"))
> +  '("x86-64-v2" "x86-64-v3" "x86-64-v4"))

Right now, on my laptop, I get:

--8<---------------cut here---------------start------------->8---
$ guix build gsl -n --tune
guix build: tuning gsl <at> 2.7.1 for CPU skylake
substitute: updating substitutes from 'http://192.168.1.48:8123'... 100.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
1.5 MB would be downloaded:
  /gnu/store/kx060kry6ka7khzganfcqk98agqp226i-gsl-2.7.1
$ guix describe
Generation 284  Dec 10 2023 23:34:41    (current)
  guix a90bc8b
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: a90bc8b6a82e094b10488030532cf4cd690ce57e
--8<---------------cut here---------------end--------------->8---

Which is nice!

With the proposed change, I’d no longer get substitutes.

So perhaps we could keep the common Intel variants in addition to the
SysV psABI generic names?

Maybe we can drop “westmere” now since it’s relatively old.

WDYT?

Ludo’.

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