GNU bug report logs - #62394
[PATCH] make more packages tunable

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From: Ludovic Courtès <ludo <at> gnu.org>
To: "Dr. Arne Babenhauserheide" <arne_bab <at> web.de>
Cc: control <at> debbugs.gnu.org, 62394 <at> debbugs.gnu.org, Liliana Marie Prikler <liliana.prikler <at> gmail.com>
Subject: [bug#62394] [PATCH] make more packages tunable
Date: Sat, 01 Apr 2023 10:19:33 +0200

Hi,

"Dr. Arne Babenhauserheide" <arne_bab <at> web.de> skribis:

> From 4e498d911ee7948bb82bbdb3c58552c67bbc3832 Mon Sep 17 00:00:00 2001
> From: Arne Babenhauserheide <arne_bab <at> web.de>
> Date: Wed, 22 Mar 2023 12:57:15 +0100
> Subject: [PATCH] gnu: make more packages tunable
>
> * gnu/packages/compression.scm (zlib)[properties]: add tunable?.
> * gnu/packages/geo.scm (gdal)[properties]: add tunable?.
> * gnu/packages/java.scm (openjdk19, openjdk14)[properties]: add tunable?.
> * gnu/packages/maths.scm (hdf5-1.8, netcdf)[properties]: add tunable?.
> * gnu/packages/protobuf.scm (protobuf)[properties]: add tunable?.
>
> advantages of Clear Linux over Ubuntu seen + perf:
> https://www.phoronix.com/review/zen4-clear-linux/2

I’m reluctant to marking things like Chromium or OpenJDK as tunable
because they take ages to build: it’s more work for ci.guix (which
builds a few tuned variants of each tunable package), and possibly leads
to local recompilations for users when substitutes for their
micro-architecture are unavailable.

It’s also not immediately obvious to me why these two packages as well
as zlib would benefit from micro-architecture-specific optimizations.

Thoughts?

Ludo’.

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