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| author | Matthias Krüger <matthias.krueger@famsik.de> | 2021-10-13 22:51:01 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-10-13 22:51:01 +0200 |
| commit | 06110c0c466e46d48d0bf01b43cf0ad5a01391b2 (patch) | |
| tree | bb8d926d642e7221f647d23455c0994caa562fde /compiler/rustc_mir_transform/src/coverage/mod.rs | |
| parent | efac68b93cfac0aa7062169f3b041661fbbdbdbd (diff) | |
| parent | 21429eda2de59327881359b083e97f5fef58f17a (diff) | |
| download | rust-06110c0c466e46d48d0bf01b43cf0ad5a01391b2.tar.gz rust-06110c0c466e46d48d0bf01b43cf0ad5a01391b2.zip | |
Rollup merge of #89670 - yoshuawuyts:available-parallelism-docs, r=joshtriplett
Improve `std::thread::available_parallelism` docs _Tracking issue: https://github.com/rust-lang/rust/issues/74479_ This PR reworks the documentation of `std::thread::available_parallelism`, as requested [here](https://github.com/rust-lang/rust/pull/89324#issuecomment-934343254). ## Changes The following changes are made: - We've removed prior mentions of "hardware threads" and instead centers the docs around "parallelism" as a resource available to a program. - We now provide examples of when `available_parallelism` may return numbers that differ from the number of CPU cores in the host machine. - We now mention that the amount of available parallelism may change over time. - We make note of which platform components we don't take into account which more advanced users may want to take note of. - The example has been updated, which should be a bit easier to use. - We've added a docs alias to `num-cpus` which provides similar functionality to `available_parallelism`, and is one of the most popular crates on crates.io. --- Thanks! r? `@BurntSushi`
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