One speaker was Brian Clark from the New York Stock Exchange. NYSE's systems run under high pressure and tight constraints. They process some three billion transactions per day - more than Google does - and those transactions need to execute in less than one millisecond. Customers can switch to competing exchanges instantly and for almost no cost, so if NYSE's systems are not performing, its customers will vanish. A typical trading day involves the processing of 1.5TB of data; some 8 petabytes of... read more