onivim/oni

Performance: V8 snapshots

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#381 建立於 2017年4月19日

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 (3 留言) (0 反應) (0 負責人)TypeScript (11,389 star) (336 fork)batch import
help wantedneeds-disambiguationperformance

描述

Atom had an interesting strategy for improving startup performance in their blog post here: http://blog.atom.io/2017/04/18/improving-startup-time.html

They are leveraging V8 snapshots to output a JS heap. This saves all the parsing and processing of JS, which is non-trivial as the bundle.js for this project gets larger.

There are some restrictions (V8 snapshots run in a bare V8 context), so it's important to have solid testing to ensure we aren't breaking anything in these cases.

貢獻者指南

技術棧
typescriptnodejs
領域
performance
議題類型
performance
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。
4
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。
over 1 week
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。
stale
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
needs investigation
前置要求
Knowledge of V8 snapshotsOni codebase familiarityNode.js runtimeTesting practices
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。
20
研究方向
Investigate the V8 snapshot approach used by Atom as described in the linked blog post. Analyze Oni's current startup sequence to identify which modules are loaded early. Determine the feasibility of pre compiling a heap snapshot of the JavaScript bundle. Consider the testing strategy to ensure no regressions in functionality.