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Don't apply the CPU affinity hack to nix-shell (and other Perl programs)

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As discovered by Todd Veldhuizen, the shell started by nix-shell has
its affinity set to a single CPU.  This is because nix-shell connects
to the Nix daemon, which causes the affinity hack to be applied.  So
we turn this off for Perl programs.
This commit is contained in:
Eelco Dolstra 2013-09-06 16:36:56 +02:00
parent 4b83830d0c
commit 936f9d45ba
5 changed files with 11 additions and 7 deletions
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src/libstore/globals.cc
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@ -54,6 +54,7 @@ Settings::Settings()
gcKeepDerivations = true;
autoOptimiseStore = false;
envKeepDerivations = false;
lockCPU = getEnv("NIX_AFFINITY_HACK", "1") == "1";
}