使用可信任的快取及網路感知來加速行動設備瀏覽網頁

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姓名

周裕傑(Yu-Chieh Chou) 查詢紙本館藏

畢業系所

資訊工程學系在職專班

論文名稱

使用可信任的快取及網路感知來加速行動設備瀏覽網頁
(TCM: Accelerating Mobile Page Loads Using Trusted Cache and Network-Aware Compaction)

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摘要(中)

現在行動設備瀏覽網頁的流量已經正式超過桌上型電腦，然而在行動設備上瀏覽
網頁的速度緩慢，讓使用者感到沮喪，並損害了網站提供商的收入。我們提出了一種
可信任的快取模組框架(Trusted Cache Module; TCM)，能夠在標準的商業化瀏覽器上，
根據用戶端的網路條件來動態的壓縮影像資源，並使用 HTTP/2 的伺服器推送(Server
Push)機制，將壓縮後的影像資源檔案推送給瀏覽器。我們的網站伺服器會使用資源嵌
入(Inline)機制，儘量的減少用戶端請求資源的數量，並且能保有資源嵌入後的可快取
性，同時，我們針對已被快取的資源檔案，使用透過硬體保護的安全驗證機制，提供
了比標準商業化瀏覽器更安全的資料完整性驗證。
我們在實際的商業化新聞網站和實體的行動設備上的實驗結果表明，TCM 將平均
的網頁載入時間減少了 26%、能源消耗減少了 15%、頻寬成本減少了 18%。

摘要(英)

Mobile browsing now generates more HTTP traffic than desktop browsing, however,
the existing slowness of the web on mobile devices frustrates users and hurts the revenue of
website providers. We propose a Trusted Cache Module(TCM) framework that dynamically
compresses image resources based on the client′s network conditions on a standard browser
and uses the HTTP/2 push, the compress image resource file is pushed to the browser. Our
web server to inline the page’s JavaScript and CSS files, and to minimize the number of
HTTP requests needed to fetch the constituent resources, and can provide cacheability for
inline resources. We use hardware-protected security authentication mechanism for cached
resource files, and provides more secure data integrity verification than standard browsers.
Experiments with real news pages and real phones show that TCM reduces median
page load time by 26%, energy expenditure by 15%, and bandwidth costs by 18%.

關鍵字(中)

★ 網路感知
★ Server Push
★ Server Hints
★ Inline
★ Cache
★ TPM

關鍵字(英)

★ Network-Aware
★ Server Push
★ Server Hints
★ Inline
★ Cache
★ TPM

論文目次

中文摘要.....................................................................................................................................i
Abstract.......................................................................................................................................ii
Contents.....................................................................................................................................iii
List of Figures.............................................................................................................................v
List of Tables .............................................................................................................................vi
1 緒論........................................................................................................................................1
2 研究背景................................................................................................................................4
2.1 網頁的組成.................................................................................................................4
2.2 網頁的載入過程.........................................................................................................4
2.3 資源之間的相依性.....................................................................................................7
2.4 資源相依性的解決方案...........................................................................................10
2.5 網頁快取的安全性...................................................................................................12
3 相關研究..............................................................................................................................14
3.1 基於伺服器推送的解決方案...................................................................................14
3.2 基於伺服器排程的解決方案...................................................................................14
3.3 基於代理(Proxy)壓縮的解決方案...........................................................................15
3.4 基於快取的解決方案...............................................................................................16
4 設計 TCM ............................................................................................................................17
4.1 資源嵌入(Inline)的儲存機制...................................................................................18
4.2 資源檔案的完整性驗證...........................................................................................19
4.2.1 桌上型電腦的資源檔案完整性驗證機制....................................................19
4.2.2 行動設備的資源檔案完整性驗證機制........................................................20
4.3 伺服器解析資源之間的相依性...............................................................................21
iv
4.3.1 內部網域資源................................................................................................22
4.3.2 外部網域資源................................................................................................23
4.4 用戶端調度程式(Scheduler).....................................................................................23
4.5 伺服器網路條件感知...............................................................................................25
4.6 TCM 框架與相關研究的比較...................................................................................26
5 實驗......................................................................................................................................28
5.1 實驗環境設置...........................................................................................................28
5.2 實驗...........................................................................................................................28
6 結論......................................................................................................................................33
Bibliography.............................................................................................................................34

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指導教授

張貴雲

審核日期

2019-7-31

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