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authorEelco Dolstra <edolstra@gmail.com>2017-04-06T16·40+0200
committerEelco Dolstra <edolstra@gmail.com>2017-04-06T16·40+0200
commitba20730b3f7ad6b09aa86b66748df575e56d442e (patch)
tree90cf209d43d1fe35a35297c27b2ce864bdcb3480 /src/libstore/store-api.cc
parent963f2bf12b4098a3b46059a26d21cdfe27662cdd (diff)
Implement RemoteStore::queryMissing()
This provides a significant speedup, e.g. 64 s -> 12 s for

  nix-build --dry-run -I nixpkgs=channel:nixos-16.03 '<nixpkgs/nixos/tests/misc.nix>' -A test

on a cold local and CloudFront cache.

The alternative is to use lots of concurrent daemon connections but
that seems wasteful.
Diffstat (limited to 'src/libstore/store-api.cc')
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