unify read_to_end and io::copy impls for reading into a Vec #118222
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…iaskrgr Rollup of 6 pull requests Successful merges: - rust-lang#118193 (Add missing period in `std::process::Command` docs) - rust-lang#118222 (unify read_to_end and io::copy impls for reading into a Vec) - rust-lang#118323 (give dev-friendly error message for incorrect config profiles) - rust-lang#118378 (Perform LTO optimisations with wasm-ld + -Clinker-plugin-lto) - rust-lang#118399 (Clean dead codes in miri) - rust-lang#118410 (update test for new LLVM 18 codegen) r? `@ghost` `@rustbot` modify labels: rollup
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…iaskrgr Rollup of 6 pull requests Successful merges: - rust-lang#118193 (Add missing period in `std::process::Command` docs) - rust-lang#118222 (unify read_to_end and io::copy impls for reading into a Vec) - rust-lang#118323 (give dev-friendly error message for incorrect config profiles) - rust-lang#118378 (Perform LTO optimisations with wasm-ld + -Clinker-plugin-lto) - rust-lang#118399 (Clean dead codes in miri) - rust-lang#118410 (update test for new LLVM 18 codegen) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#118222 - the8472:copy-use-vec-write, r=m-ou-se unify read_to_end and io::copy impls for reading into a Vec This ports over the initial probe (to avoid allocation) and the dynamic read sizing from the io::copy specialization to the `default_read_to_end` implementation which already had its own optimizations for different cases. I think it should be a best-of-both now. suggested by `@a1phyr` in rust-lang#117576 (comment)
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…ChrisDenton delay uncapping the max_read_size in File::read_to_end In rust-lang#130600 (comment) I realized that we're likely still passing too-large buffers to the OS, at least once at the end. Previous issues and PRs: * rust-lang#110650 * rust-lang#110655 * rust-lang#118222 r? ChrisDenton
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…ChrisDenton delay uncapping the max_read_size in File::read_to_end In rust-lang#130600 (comment) I realized that we're likely still passing too-large buffers to the OS, at least once at the end. Previous issues and PRs: * rust-lang#110650 * rust-lang#110655 * rust-lang#118222 r? ChrisDenton
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…ChrisDenton delay uncapping the max_read_size in File::read_to_end In rust-lang#130600 (comment) I realized that we're likely still passing too-large buffers to the OS, at least once at the end. Previous issues and PRs: * rust-lang#110650 * rust-lang#110655 * rust-lang#118222 r? ChrisDenton
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Rollup merge of rust-lang#130670 - the8472:read-to-end-heuristics, r=ChrisDenton delay uncapping the max_read_size in File::read_to_end In rust-lang#130600 (comment) I realized that we're likely still passing too-large buffers to the OS, at least once at the end. Previous issues and PRs: * rust-lang#110650 * rust-lang#110655 * rust-lang#118222 r? ChrisDenton
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This ports over the initial probe (to avoid allocation) and the dynamic read sizing from the io::copy specialization to the
default_read_to_endimplementation which already had its own optimizations for different cases.I think it should be a best-of-both now.
suggested by @a1phyr in #117576 (comment)