Since multicore systems offer greater performance via parallelism, future computing is progressing towards use of machines with large number of cores. However, due to the complex interaction among characteristics of multithreaded applications, operating system policies, and architectural characteristics of multicore systems, delivering high performance on multicore systems is a challenging task. This work addresses the above challenge by developing runtime techniques to achieve high performance when running a single multithreaded application as well as high system utilization and fairness...