Twitter Engineering recently posted about their move to the JVM in detail. It's worth a read. It wasn't just about a move to a service oriented architecture. T

Twitter Engineering recently posted about their move to the JVM in detail. It's worth a read. It wasn't just about a move to a service oriented architecture. They also got well over 10X performance gain out of each machine by moving to the JVM. (They attribute it to better concurrency.) See: https://blog.twitter.com/2013/new-tweets-per-second-record-and-how https://blog.twitter.com/2013/new-tweets-per-second-record-a... I think the article's methodology is fine. It's not about the most popular languages in terms if developer head count. It's looking at what powers the biggest sites.