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| author | Ariel Ben-Yehuda <arielb1@mail.tau.ac.il> | 2015-04-21 19:00:12 +0300 |
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| committer | Ariel Ben-Yehuda <arielb1@mail.tau.ac.il> | 2015-04-30 15:10:52 +0300 |
| commit | 7ae4a8e9f3150f62964151ef54b3da3cd24ee123 (patch) | |
| tree | 3dd0213972746ef86062dd9ad094acf2b7838507 /src/libsyntax | |
| parent | bd1f73420ab22faa8087a6cf1618225d09d64f9e (diff) | |
| download | rust-7ae4a8e9f3150f62964151ef54b3da3cd24ee123.tar.gz rust-7ae4a8e9f3150f62964151ef54b3da3cd24ee123.zip | |
Use hash-tables in trait selection
Puts implementations in bins hashed by the fast-reject key, and only looks up the relevant impls, reducing O(n^2)-ishness Before: 688.92user 5.08system 8:56.70elapsed 129%CPU (0avgtext+0avgdata 1208164maxresident)k, LLVM 379.142s After: 637.78user 5.11system 8:17.48elapsed 129%CPU (0avgtext+0avgdata 1201448maxresident)k LLVM 375.552s Performance increase is +7%-ish
Diffstat (limited to 'src/libsyntax')
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