Amazon S3 and CloudFront Response Time
Kevin Day, April 8th, 2010If you’re evaluating whether to serve static files from Amazon S3 or their CDN, CloudFront, here is some data I’ve collected for each of their response times. The graph below is the result of two tests I set up in Binary Canary:

It’s a bit hard to read, but it says that CloudFront’s average response time is 164 ms, and S3’s response time is 338 ms. The test pages I set up were small 60 byte HTML files.
There are technical factors that need to be considered when choosing one or the other, but it looks like you can shave off about 160 ms by choosing CloudFront instead of S3.
