ILP Aware Scheduling on Multithreaded Multi-core Processors

TL;DR

This paper proposes an ILP-aware OS scheduling algorithm for multithreaded multi-core processors that aims to improve resource utilization and performance by balancing instruction-level parallelism across threads.

Contribution

It introduces a novel scheduling approach that tracks and balances ILP in threads to optimize resource utilization in multithreaded multi-core systems.

Findings

Potential for improved resource utilization

Enhanced performance through balanced ILP scheduling

Framework for future quantitative evaluation

Abstract

Multithreaded Multi-core processors are prevalent today and are used for solving some of the important problems in computing. Resource imbalance can negatively impact overall performance in such processors. Hence balanced resource utilization is important in such processors. Particularly, it is important to maximize utilization of available instruction-level-parallelism (ILP). In this paper I present an ILP aware operating system (OS) scheduling algorithm for Multithreaded Multi-core processors. By keeping track of available ILP in each thread and by balancing it with available ILP resources in the system the OS will come up with a new schedule of threads for the next quantum. This new schedule will potentially result in a more balanced resource-utilization and improve performance for the next quantum. This work can be extended by doing a detailed quantitative evaluation.