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Website Traffic and Performance
06-27-2010, 02:25 AM
Post: #2
RE: Website Traffic and Performance
My input based on scaling sites at AOL (so not necessarily the case for all deployments)...

(06-26-2010 06:04 PM) Wrote:  1. I am sure the answer will vary but in general, how much does traffic influence performance and page speed? It would be neat to look at a graph for a page that does not change content wise and then measure page speed vs traffic.

This is generally referred to as load testing. For a properly designed and scaled system performance will not degrade (at all) with increased traffic. Realistically there is a knee that if it get crossed then performance does degrade (usually for the TTFB but it depends on how you serve your static content as well).

(06-26-2010 06:04 PM) Wrote:  2. Likewise, I am sure this depends on server hardware, but in general, how much traffic can a server handle before performance is totally degraded to the point users may start to get frustrated with page speed?

This actually depends on a combination of the hardware and the platform. From the web server (Apache, IIS, Lighthttpd) to the application stack (static files, cgi, php, java, ruby) and even the back-end it is hooked up to.

(06-26-2010 06:04 PM) Wrote:  3. Once performance is degraded due to traffic, what can you do to increase the performance once again? Do you simply add more hardware to the same server or do you purchase more dedicated servers that mirror the original server?

A lot of sites are designed to "scale horizontally" which means you can throw more servers into the mix and use load balancers and DNS round robin to distribute the load. This works best if the front-ends are stateless and the app needs to be designed for it.

The rest of the questions fall outside of my area of expertise.

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RE: Website Traffic and Performance - pmeenan - 06-27-2010 02:25 AM

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