In this paper we present performance measurements in a cluster environment. First, we briefly explain our version of optimistic concurrency control and load balance. Then we compare performance and speed-up of a CORBA-and an AspectC++-implementation of a distributed object server for pessimistic and optimistic concurrency control.
OBJECTIVE In order to determine the practice habits of obstetricians concerning frequency of prenatal human immunodeficiency virus (HIV) testing and management strategies for HIV-seropositive obstetric patients, we conducted a telephone survey of practicing obstetricians over a 3-month period. METHODS In the New Orleans metropolitan area, 71/104 (68%)… (More)