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A (somewhat) brief history of the performance landscape
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- Web性能
I’d like to enlist your help. As I’ve mentioned, last week I led a session onweb performance automation for the members of the NY Web Performance Meetup group. For the session, I created a set of slides that outline my theory about how the front-end performance landscape has evolved over the past 15 years. Now I want to solicit your feedback and help me fill the gaps. Most companies know that if site speed is an issue for them, the problem isn’t infrastructure, and throwing more bandwidth and servers at the problem isn’t the solution. As I understand the current solution landscape, the web performance problem can be approached in two ways: 1. Delivery Here’s the diagram I’ve created to show the breakdown of delivery-based solutions and the major players in this space: 2. Transformation Note that transformation is a complement to, not a replacement for, delivery-based solutions. It is difficult to segment this emerging market, as very few players are actively involved in it. I choose to segment it by how transformation is delivered (via server, network or cloud) as this discussion seems to be a clear dividing line between the various players. This is a first stab and I’m not convinced I have it right, however I am excited to put something down on virtual paper, so in three years I can look back and see how far our industry has evolved and realize how naive I was. After organizing the solution providers in both the delivery and transformation camps, I thought it would be interesting to put the key players in front-end performance on a timeline and see if any patterns emerged: As you can see, in addition to showing solution providers, this timeline also shows when new browsers appeared on the market, as well as the appearance of widely embraced performance tools and reference materials. This is a brain dump, but I tried to capture they key elements that I think of when it comes to front-end performance. This historical bird’s eye view corroborates my delivery-to-transformation theory of performance evolution: This is just my wide-angle take on the front-end web performance landscape. I’m very interested to hear yours. Is my classification scheme accurate? Have I left out any major developments or solution providers? Are there any gaps that need to be filled? Trends I’ve missed? And what about the future of solution delivery? Given the trajectory we’re on, where do you see our industry going in the next few years?Evolution: From delivery to transformation
Delivery-based solutions are focused on getting the data from the server to the browser more quickly. This is a $4.2 billion/year market, encompassing CDNs, network devices/accelerators, and others:
Pros: Make sites faster by shortening round trips; easy to deploy
Cons: Expensive; don’t take advantage of acceleration opportunities like roundtrip reduction and optimizing pages for browsers
Pros: Proven technology; easy to implement and deploy
Cons: Don’t address performance problems that occur at the browser level;very hard to configure which is why many sites using them don’t even use the basic features of compression and keep-alive
Other delivery players exist, such as DNS solution and TCP optimization solution, but they are at the fringes of this market, and I consider them features rather than unique market segments when it comes to performance.
Transformation-based solutions focus on analyzing each page of a site from the browser’s perspective and optimizing each page so that it is delivered most efficiently to the browser. Thanks to teams at Yahoo and Google, there are emerging sets of best practices that serve as guidelines for this recoding.
Web performance timeline: Any trends here?
Your thoughts?
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