Oracle Developer Studio includes a set of libraries that provide runtime support on supported platforms: performance libraries targeted for compute-intensive applications, and debugging and performance analysis libraries used in tuning applications in a development environment. Performance and runtime libraries are used in production environments and are installed by system administrators as required for the applications that will be run.
As the name implies, performance libraries are optimized for performance which means that data checking is set to a minimum, insuring maximum performance. When using performance libraries, the application developer is responsible for validating data being passed to these libraries.