[Nix-dev] Why Nix-0.16 so hungry on ressources (mem + cpu) ?

[Paul Dufresne]

Was using Nix-0.16.
With it, I was able to:
sudo nix-install-package --non-interactive --url
http://hydra.nixos.org/build/1463174/nix/pkg/nix-1.0pre29920-i686-linux.nixpkg
which is trunk nix. Or at least was not long ago.
It also shows the 56k connection was not so bad: did download
perl-5.10.1, gcc-4.5, etc.

Nix trunk seems to be quite similar to Nix-0.16 in term of memory
used, or the 'too much' nix-expressions evaluated.

CPU would be used at only about 6%, but 'waiting' about 90% according
to top. I guess this is caused by trashing due to the big 70% memory
used.