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authorLudovic Courtès <ludo@gnu.org>2022-05-13 16:47:49 +0200
committerLudovic Courtès <ludo@gnu.org>2022-05-18 23:27:08 +0200
commit2f170893719e6e9fc8e19cc5f0568e20a95d92b4 (patch)
treeabe252f22493e7ea9b111ab7898d7d4e0921a6ed /config-daemon.ac
parent001f4afd0771bafe1f17e709070b8ef56b5bdfea (diff)
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store: Use a decaying cutoff in 'map/accumulate-builds'.
This reduces the wall-clock time of: ./pre-inst-env guix system vm gnu/system/examples/desktop.tmpl -n from 2m13s to 53s (the timings depend on which derivations have already been built and are in store; in this case, many were missing). * guix/store.scm (default-cutoff): New variable. (map/accumulate-builds): Use it. Parameterize it in recursive calls to have decaying cutoff.
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