A method is described that involves creating an instance of a software component for the substantially private use of a thread. A determination of whether to access an instance of a software component from one of a private software component instance collection and a software component instance pool is made, the private software component instance collection configured to include an instance of the software component that is not synchronized with an additional thread of the computer program, the software component instance pool configured to include an instance of the software component that is synchronized with the additional thread of the computer program, the determination based on a number of other threads accessing the software component instance pool and a complexity of whether the instance of the software component is to execute at least one of a single task and a few simple tasks.