High Performance Widgets - Widget Summit

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Takeawaysfocus on the frontendharvest the low-hanging fruityou do control user response timessmall investment up front keeps on givingLOFNO – be an advocate for your users
Steve Souderssouders@yahoo-inc.com
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High Performance WidgetsSteve Soude
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Exceptional Performancequantify and
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Exceptional Performancequantify and
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The Importance of FrontendPerforman
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The Importance of FrontendPerforman
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Time Spent on the FrontendEmpty Cac
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The Performance Golden Rule
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The Performance Golden Rule80-90% o
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The Performance Golden Rule80-90% o
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PerformanceResearch
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Browser Cache Expt Results1.00uniqu
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Experiment Takeaways
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Experiment TakeawaysThe empty cache
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Case Study:40-50%move JS to onloadr
Page 29 and 30: 14 Rules1. Make fewer HTTP requests
Page 31 and 32: My iTunes
Page 33 and 34: Flash-basedMy iTunes
Page 35 and 36: My iTunesFlash-based8 HTTP requests
Page 37 and 38: My iTunesFlash-based8 HTTP requests
Page 39 and 40: Flickr
Page 41 and 42: FlickrJS-based4 HTTP requests
Page 43 and 44: FlickrJS-based4 HTTP requestsimages
Page 45 and 46: Meebo
Page 47 and 48: Flash-basedMeebo
Page 49 and 50: MeeboFlash-based8 HTTP requestsnoth
Page 51 and 52: WeatherBug
Page 53 and 54: WeatherBugGoogle Module27 requests
Page 59 and 60: Yahoo! Finance
Page 61 and 62: Yahoo! FinanceJS-based33 HTTP reque
Page 63 and 64: Yahoo! FinanceJS-based33 HTTP reque
Page 65 and 66: Widget Performance# HTTPrequestspag
Page 67 and 68: Widget Performance# HTTPrequestspag
Page 69 and 70: Widgets are Hard
Page 71 and 72: Widgets are Hardcaching & preloadin
Page 73 and 74: Widgets are Hardcaching & preloadin
Page 75 and 76: Takeaways
Page 77 and 78: Takeawaysfocus on the frontendharve
Page 79: Takeawaysfocus on the frontendharve
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High Performance Widgets - Widget Summit

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