October 1998
Intermediate to advanced
374 pages
12h 6m
English
Content preview from Web Performance TuningBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 14. Content
Size Matters
The network doesn’t know or care what type of content you are serving. Bits are bits. Size is all that really matters for network transfer time. The basic performance principle is therefore to send fewer bits and make fewer requests. Try to think of size in terms of download time rather than absolute bits, because how long a human being has to wait is the ultimate measure of success. If most of your users are on 28.8 modems, make a rule that no image can be “larger” than 10 seconds. 10 seconds is about 35K if the 28.8 modem is running perfectly.
Compare Yahoo! (http://www.yahoo.com/), which has a very light home page, to CNN (http://www.cnn.com/), which tends to bloat. The difference in download time is significant. It’s easy to get carried away, so lay down some ground rules and try to get your content developers to care about bandwidth issues.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.