DevCentral
There are 3 entries for the tag DevCentral
Last week Google announced a new open source plug-in for Firefox called Page Speed which can be used to assess the performance of web pages and make recommendations on speeding up the delivery. To me this sounded a lot like Yslow, of course that plug-in was developed and maintained by Yahoo! so it does make sense that Google would want to come up with their own version. As I hadn't yet upgraded to YSlow 2.0 I figured this was a good time to see what the new version had to offer and how Page Speed compares. All testing was conducted...
I was excited when I first spoke to the DevCentral team about deploying WebAccelerator, as what they were faced with was exactly the same problems I hear from customers on a regular basis. Web applications have evolved over the years from small, fairly static "brochureware" to larger and more interactive applications. To the right is a copy of the DevCentral homepage in June of 2003 courtesy of The Way Back Machine. Looks slightly different than what you're looking at today. As the site matured the number and types of objects on the homepage grew: ...
In a previous post I discussed the ability of dynamic data to be accelerated, what enables WebAccelerator to cache dynamic or deterministic data is invalidations. When content changes you don't want to be serving stale data the invalidation process ensures this doesn't happen. An invalidation message tells the cache that the content that is currently stored is now expired and the next request for the content needs to be validated with the origin server. This is normally performed via a conditional GET (if-none-match or if-modified-since) being issued to the web server. Invalidation of content can be done...
