RealWorldTech's David Kanter discusses the transactional memory of Intel's Haswell architecture, you can learn about it over here.
Two of my personal areas of interest and expertise are speculative multithreading (SpMT) and transactional memory (or TM). Both are techniques designed to make multi-core processors and parallel programming more amenable to developers. For several years, I was the co-founder of Strandera, a start up that was developing speculative multithreading, based on transactional memory and dynamic binary translation. Strandera was a wonderful opportunity for me to meet many of the leading academic and commercial researchers in these areas and a number of x86 microprocessor architects over the last 5 years.
A while back, my friend and colleague Andreas Stiller reported a rumor that Intel’s upcoming Haswell microarchitecture would feature transactional memory. This rumor proved to be true recently, when Intel confirmed that Haswell included Transactional Synchronization Extensions, or TSX. This was incredibly exciting for me, and I am happy to take advantage of my expertise and experience to discuss these innovations.