3 ms·
Would be nice if they tested latency as well as bandwidth. Latency on small requests can be quite important for hosting performance as well.
by lambda 17y ago
Would be nice if they tested latency as well as bandwidth. Latency on small requests can be quite important for hosting performance as well.
- dminor 17y agoLatency in a CDN can also vary by how often something is accessed - frequently accessed resources get cached closer to the edge - so it's really hard to do a good CDN comparison through simple testing.
- lambda 17y agoWell, if they are testing files that are only ever downloaded as part of the test, then all of the CDNs will be on equal footing as far as caching goes (assuming that they randomize the order that CDNs are tested in to try to eliminate biases due to some people quitting before the test is over). Part of what you would be trying to measure is how well the caching infrastructure and strategies actually effect the latency seen by end users. If one CDN keeps things cached on the edge longer, and one aggressively evicts things, that will impact latency which is exactly what you would want to be measuring.