nixos/nix-daemon: Clarify daemonNiceLevel
The option doesn not currently do what some people expect, clarify the limitations in documentation.
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@@ -189,7 +189,9 @@ in
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default = 0;
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default = 0;
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description = ''
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description = ''
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Nix daemon process priority. This priority propagates to build processes.
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Nix daemon process priority. This priority propagates to build processes.
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0 is the default Unix process priority, 19 is the lowest.
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0 is the default Unix process priority, 19 is the lowest. Note that nix
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bypasses nix-daemon when running as root and this option does not have
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any effect in such a case.
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Please note that if used on a recent Linux kernel with group scheduling,
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Please note that if used on a recent Linux kernel with group scheduling,
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setting the nice level will only have an effect relative to other threads
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setting the nice level will only have an effect relative to other threads
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