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| author | Ludovic Courtès <ludo@gnu.org> | 2020-06-14 14:51:02 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2020-06-14 15:34:41 +0200 |
| commit | 9acac9f9c6452cd76a21e52c7e5a33e8384b82b4 (patch) | |
| tree | 1de74951648d77b4b7ce3d031a75bfc83462c1b8 /doc/guix.texi | |
| parent | 20d9034cc5bdfd0acec24b7589859cc77f5e9164 (diff) | |
| download | guix-9acac9f9c6452cd76a21e52c7e5a33e8384b82b4.tar guix-9acac9f9c6452cd76a21e52c7e5a33e8384b82b4.tar.gz | |
profiles: Fix pathological performance of 'manifest-transitive-entries'.
For packages with lots of propagated inputs,
'manifest-transitive-entries', as called from 'check-for-collisions',
would exhibit pathological behavior. For example, "guix install cl-ana"
wouldn't complete in 1mn; now, it's down to 20s.
The issue was that manifest entries would never be 'equal?' due to the
delayed field in <manifest-entry>.
* guix/profiles.scm (manifest-transitive-entries): Use a vhash instead
of a set. Use 'manifest-entry=?' instead of 'equal?' when checking for
equality.
Diffstat (limited to 'doc/guix.texi')
0 files changed, 0 insertions, 0 deletions