If you are curious about the performance aspects of various web frameworks then it is worth looking at pretty impressive suite of benchmarks at techempower :
In the Round 7 benchmarks they benchmarked 84 web frameworks. You can see the results here for JSON Serialization, Single Query, Multiple Queries, Fortunes, Data Updates and Plaintext benchmarks. Done both on an i7 server and Amazon Web Services.
Jelastic has an interesting view into what’s in and what’s not on their PaaS platform and they have shared it with us. The most recent statistics on the Java & PHP software stacks’ popularity within the Jelastiс PaaS are now viewable. While this doesn’t give us a view into a bunch of key middleware (Oracle, etc) – it does provide a really fascinating view of what’s popular in the Jelastic PaaS.
Another cloud provider turning in great numbers using flash-based SSD storage systems and allowing them to use QoS features. A new and terrific paper describing Elastx, a Swedish platform as a service (PaaS) hosting provider that delivers scale-out solutions for Java and PHP leveraging Jelastic. I have written before about Jelastic in my post, Java in the Auto-Scaling Cloud. In a series of tests used to measure performance were run for 15 days between June 25 and July 9th 2013 on Elastx, Rackspace and Amazon. They focused primarily on I/O performance. Leveraging sysbench and mongoperf benchmarks. Elastx seriously outperformed the competition. Under the covers they are using SolidFire to get this level of performance.
Go to more posts on storage and flash storage blogs at http://digitalcld.com/cld/category/storage.
There is a nice article on increasing scalability of PHP on AWS web servers – although one might consider these scalability features generally. Surprisingly the suggestions allow scaling up to 30,000 concurrent users per server. You can find the suggestions here.