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[Optimizations] add disabled code for runtimeOverrides

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Comment-out jetbrains-jdk optimizations (as CFLAGS were not properly
propagated).
Add fastStdenv optimizations instead.
This commit is contained in:
Antoine Viallon 2024-08-19 09:18:56 +02:00
parent 999f6d1185
commit 989ab10692
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1 changed files with 50 additions and 3 deletions
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53
optimizations/optimizations.nix
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@ -76,6 +76,7 @@ in {
type = with types; functionTo (functionTo package);
};
trace = mkEnableOption "trace attributes in overriden derivations";
runtimeOverrides.enable = mkEnableOption "runtime overrides for performance sensitive libraries (glibc, ...)";
blacklist = mkOption {
default = [ # Broken
"alsa-lib" "glib" "lcms2" "gconf" "gnome-vfs"
@ -111,11 +112,57 @@ in {
options.aviallon.optimizations.blacklist.default
++ (traceValSeq (forEach config.system.replaceRuntimeDependencies (x: lib.getName x.oldDependency )))
);
system.replaceRuntimeDependencies = mkIf (!lib.inPureEvalMode && cfg.runtimeOverrides.enable) [
# glibc usually represents 20% of the userland CPU time. It is therefore very much worth optimizing.
/*{
original = pkgs.glibc;
replacement = let
optimizedFlags = [ "-fipa-pta" ];
#optimizedFlags = myLib.optimizations.guessOptimizationsFlags pkgs.glibc (defaultOptimizeAttrs // { level = "slower"; recursive = 0; });
in pkgs.glibc.overrideAttrs (attrs: myLib.debug.traceValWithPrefix "optimizations (glibc)" {
passthru = pkgs.glibc.passthru;
env = (attrs.env or {}) // {
NIX_CFLAGS_COMPILE = (attrs.env.NIX_CFLAGS_COMPILE or "") + (toString optimizedFlags.CFLAGS);
};
});
}*/
# zlib is in second place, given how often it is used
#{
# original = pkgs.zlib;
# replacement = optimizePkg { level = "slower"; } pkgs.zlib;
#}
];
nixpkgs.overlays = mkAfter [
(self: super: {
jetbrains = super.jetbrains // {
jdk = optimizePkg {} super.jetbrains.jdk;
};
fastStdenv = super.overrideCC super.gccStdenv (super.buildPackages.gcc_latest.overrideAttrs (old:
let
optimizedAttrs = {}
// {
configureFlags = [
"--with-cpu-64=${generalCfg.cpu.arch}" "--with-arch-64=${generalCfg.cpu.arch}"
"--with-tune-64=${generalCfg.cpu.tune}"
"--with-build-config=bootstrap-lto-lean"
];
}
;
ccWithProfiling = old.cc.overrideAttrs (_: { buildFlags = [ "profiledbootstrap" ]; } );
in {
cc = addAttrs ccWithProfiling optimizedAttrs;
}
));
})
(self: super: {
#jetbrains = super.jetbrains // {
# jdk = pipe super.jetbrains.jdk [
# (optimizePkg { level = "normal"; lto = false; })
# (pkg: pkg.overrideAttrs (old: {
# passthru = pkg.passthru or {};
# #configureFlags = (old.configureFlags or []) ++ [ "--with-extra-cflags" "--with-extra-cxxflags" "--with-extra-ldflags" ];
# }))
# ];
#};
})
];
};