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nixos/nix-daemon: default to build with all cores available

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These days build systems are more robust w.r.t. to concurrency.
Most users will have at least two cores in their machines.
Therefore I suggest to increase the number of cores used for building.

fixes #50376
This commit is contained in:
Jörg Thalheim 2018-11-16 00:39:27 +00:00
parent e024989531
commit ced57f7888
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1 changed files with 2 additions and 2 deletions
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nixos/modules/services/misc/nix-daemon.nix
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@ -117,11 +117,11 @@ in
buildCores = mkOption {
type = types.int;
default = 1;
default = 0;
example = 64;
description = ''
This option defines the maximum number of concurrent tasks during
one build. It affects, e.g., -j option for make. The default is 1.
one build. It affects, e.g., -j option for make.
The special value 0 means that the builder should use all
available CPU cores in the system. Some builds may become
non-deterministic with this option; use with care! Packages will