1秒的页面加载延迟相当于少了11%的PV
According to a 2008 Aberdeen Group study, a 1-second delay in page load time equals 11 percent fewer page views, a 16 percent decrease in customer satisfaction, and a 7 percent loss in conversions. In dollar terms, this means that if a site typically earns $100,000 a day, this year you could lose $2.5 million in sales for every second slower your site is compared to last year (or, for that matter, compared to your competitor’s
website).
摘自《Web Load Testing For Dummie》