Cedexis took a different approach to monitoring performance: inserted objects in all CDNs and convinced top sites to insert objects into their pages to gather real user performance experience.
15 Billion measurements in January, analyzed by Bitcurrent.
EC2 East outperforms Rackspace, Joyent, Google AppEngine and Azure.
If you deploy on multiple availability zones…do you use static geo-load balancing or base your decision on real-time performance information?
Turns out you get much better international coverage, a 20-30% improvement by using performance based load balancing.