60fps 版面配置和轉譯
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專案中的 60 fps 與使用者參與度直接相關,是他們成功的重要關鍵。在這場談話中,Nat 和 Tom 談到 Chrome 的轉譯管道,而且是導致影格出現的常見原因和避免方式。
簡報
- 影格長度為 16 毫秒。其中包含 JavaScript、樣式計算、繪畫和合成。
- 繪圖的成本「非常」高。「顏料風暴」是多餘的重複繪製顏料。
- 圖層可用來快取繪製的元素。
- 輸入處理常式 (觸控式和滑鼠滾輪事件監聽器) 可能會終止回應;如果可以的話,請避免使用。讓這些團隊面臨的困境。
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上次更新時間:2025-07-25 (世界標準時間)。
[[["容易理解","easyToUnderstand","thumb-up"],["確實解決了我的問題","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["缺少我需要的資訊","missingTheInformationINeed","thumb-down"],["過於複雜/步驟過多","tooComplicatedTooManySteps","thumb-down"],["過時","outOfDate","thumb-down"],["翻譯問題","translationIssue","thumb-down"],["示例/程式碼問題","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["上次更新時間:2025-07-25 (世界標準時間)。"],[],["Maintaining 60fps is vital for user engagement. The rendering pipeline involves JavaScript, styling, painting, and compositing within a 16ms frame. Painting is resource-intensive, particularly in \"Paint Storms,\" where it's repeatedly done unnecessarily. Layers cache painted elements to reduce this burden. Input handlers, such as touch and mousewheel listeners, can significantly impact responsiveness; thus, their usage should be minimized.\n"]]