Auctioneers and High Performance

There is an interesting article/blog post on the architecture of the LMAX exchange. They prefer a single thread model with event sourcing over an actor driven model. Betfair, a company related to the LMAX owners, at least for a while, used an actor, in memory model for sports betting. These issues are only relevant when handling very high volumes of trades, but certainly might become increasingly interesting for exchanges handling crypto currencies like bitcoin, litecoin or ppcoin.