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Closure graph memory (19.03) #56920

Merged
merged 2 commits into from Mar 7, 2019
Merged

Closure graph memory (19.03) #56920

merged 2 commits into from Mar 7, 2019

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grahamc
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@grahamc grahamc commented Mar 5, 2019

Motivation for this change

Backport #56918

Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Assured whether relevant documentation is up to date
  • Fits CONTRIBUTING.md.

@grahamc
references-by-popularity: create debug output
f17c143 
(cherry picked from commit 54826e7)
@grahamc
references-by-popularity: cache computation to avoid memory bloat
4991792 
On very large graphs (14k+ paths), we'd end up with a massive in
memory tree of mostly duplication.

We can safely cache trees and point back to them later, saving
memory.

(cherry picked from commit 09362bc)
@worldofpeace
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Fixed the little evaluation bleep 2fc4252

@shlevy
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shlevy commented Mar 6, 2019

@GrahamcOfBorg eval

@shlevy
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shlevy commented Mar 6, 2019

@grahamc Have the ofborg commands changed?

@shlevy shlevy merged commit a8a6e9e into NixOS:release-19.03 Mar 7, 2019
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@grahamc @worldofpeace @shlevy @GrahamcOfBorg