Analiza mehanizama za smanjenje vremena učitavanja sadržaja weba

master's thesis

• Title (english): Analysis of Mechanisms for Reducing Web Page Loading Times
• Author: Dan Novak
• Mentor: Lea Skorin-Kapov (mentor)
• Committee member: Maja Matijašević (predsjednik povjerenstva)
• Committee member: Marin Vuković (član povjerenstva)
• Committee member: Mirko Sužnjević (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2018-02-21, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

Cilj ovog diplomskog rada bio je pronaći i implementirati različite mehanizme koji se koriste za smanjivanje vremena učitavanja web stranica. Mehanizmi za smanjivanje vremena učitavanja web stranica mogu se podjeliti u dvije grupe. One koje mogu implementirati programeri prilikom izrade web strance i na one koji se trebaju implementirati na razini internetske infrastrukture kao što su razna poboljšanja internetskih protokola. Prvo poglavlje ovog rada fokusira se na sve mehanizme koje programeri mogu sami implementirati kako bi dizajnirali visoko opzimiziranu web stranicu. U drugom poglavlju fokus se prebacuje na HTTP i sva poboljšanja koja su ostvarena svakom novom verzijom protokola, zaključno sa nedavno standardiziranom verzijom HTTP/2 i njegovim push mehanizmom. HTTP/2 „push“ omogućava serveru da klijentu šalje više HTTP odgovora na jedan postavljen zahtjev. U trećem poglavlju izrađena je lažna web stranica koja se koristila za implementiranje opisanih mehanizama pri dizajniranju web stranice. Lažna web stranica napravljena je tako da podržava više verzija HTTP-a, uključujući i HTTP/2 i njegov „push“ mehanizam. Ostvareno je nekoliko verzija lažne web stranice, svaka sa raličitom razinom optimizacije, sa serverima koji koriste različite verzije HTTP-a. U zadnjem poglavlju napravljena je zadnja evaluacija HTTP/2 protokola i svih opisanih mehanizama optimizacije. Nakon što je izmjereno vrijeme učitavanja za svaku različitu verziju web stranice, rezultati su pokazali značajno smanjenje vremena učitavanja nakon što su upotrijebljeni mehanizmi opisani u prvom poglavlju ovog rada, i smanjenje vremena učitavanja koristeći HTTP/2 u bežičnoj mreži.

Abstract (english)

The goal of this thesis was to find and implement various mechanisms aimed at reducing web page loading time (PLT). Mechanisms for reducing PLT can be divided into two groups. Those which developers can implement designing the website and the mechanism which need to be implemented on the Internet infrastructure level such as protocol enchantments. Chapter one of this thesis focuses on web design and best practices developers can follow for designing a high-performance website. Chapter two focuses on HTTP and all improvements that have been made with each new version of the protocol, concluded with the recently introduced HTTP/2 and push mechanism for transforming a pull only web into push enabled. HTTP/2 push allows the server to send out multiple HTTP responses for one request from the client. In chapter three, a mock website was built in order to implement all described mechanisms, following best practises in web design and implementing a server which can use multiple versions of HTTP, including HTTP/2 and push mechanism. Multiple versions of the mock website were implemented each with different levels optimization, using different HTTP protocols. In chapter four final evaluation of HTTP/2 and web design optimization mechanisms was made. After measuring PLT for each version of the mock website, results showed significant improvements in PLT achieved implementing techniques described in the first chapter of this thesis and an improvement when using HTTP/2 over wireless networks.

• Keywords: vrijeme učitavanja stranice; web dizajn; HTTP/2; push mehanizam
• Keywords (english): Page load time; web design; HTTP/2; push mechanism
• Language: english
• URN:NBN: urn:nbn:hr:168:874926
• Study programme: Title: Computing; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka računarstva (magistar/magistra inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-13 23:24:52