Even more ObligationForest improvements#64627
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This gives a slight speed-up.
Optimizing for the common numbers of entries in `stalled_on` wins about 4% on `keccak` and `inflate`.
This is a big speed win for `keccak` and `inflate`.
We normally use `index` for indices to `ObligationForest::nodes`, but this is a `Nodes::dependents` index.
The name `waiting_cache` sounds like it is related to the states `NodeState::Waiting`, but it's not; the cache holds nodes of various states. This commit changes it to `active_state`.
Because the meaning of this `index` variable is quite different to all the other `index` variables in this file.
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@bors try @rust-timer queue |
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Awaiting bors try build completion |
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Sep 20, 2019
Even more `ObligationForest` improvements Following on from #64545, more speed and readability improvements. r? @nikomatsakis
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💥 Test timed out |
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Not sure what happened there. Let's try it the old-fashioned way: |
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Sep 20, 2019
Even more `ObligationForest` improvements Following on from #64545, more speed and readability improvements. r? @nikomatsakis
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Some local measurements: |
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☀️ Try build successful - checks-azure |
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Queued 85a4a15 with parent ea3ba36, future comparison URL. |
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Finished benchmarking try commit 85a4a15, comparison URL. |
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@nnethercote Do you every take a day off of optimizing rustc? 😄 |
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Sep 23, 2019
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@bors r+ |
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📌 Commit aa10abb has been approved by |
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@bors rollup=never |
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Sep 25, 2019
Even more `ObligationForest` improvements Following on from #64545, more speed and readability improvements. r? @nikomatsakis
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☀️ Test successful - checks-azure |
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Oct 2, 2019
… r=nikomatsakis Still more `ObligationForest` improvements. Following on from rust-lang#64627, more readability improvements, but negligible effects on speed. r? @nikomatsakis
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Following on from #64545, more speed and readability improvements.
r? @nikomatsakis