PyO3/pyo3

Expand performance section of the guide

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#3,310 建立於 2023年7月11日

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 (8 留言) (4 反應) (0 負責人)Rust (10,152 star) (668 fork)batch import
Good First Issue

描述

  • Overhead of conversions (i.e. PyList vs Vec etc.)
  • String intern!
  • Vec<u8> becoming list[int] (and thus being very slow), usage of Cow<[u8]> as an alternative
  • #[pyo3(get)] deep-cloning non-Py data
  • dictionary dispatch, i.e. look-up based on type object identity

貢獻者指南

技術棧
rustpython
領域
documentation
議題類型
documentation
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
half day
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
active
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
Rust programmingPython programmingPyO3 library basicsPerformance optimization concepts
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
50
研究方向
Examine the existing guide structure in the `guide/` directory of the PyO3 repository. Look at the 'Performance' section to understand the current content and formatting. Read the referenced items, such as the overhead of conversions between PyList and Vec, and the use of `Cow<[u8]>` for zero copy data. Consider consulting comments or asking maintainers for preferred depth and examples. Finally, write concise explanations with code snippets and performance benchmarks where applicable.