Performance and energy analysis of the restricted transactional memory implementation on haswell
Paper in proceedings, 2014

Hardware transactional memory implementations are becoming increasingly available. For instance, the Intel Core i7 4770 implements Restricted Transactional Memory (RTM) support for Intel Transactional Synchronization Extensions (TSX). In this paper, we present a detailed evaluation of RTM performance and energy expenditure. We compare RTM behavior to that of the TinySTM software transactional memory system, first by running micro benchmarks, and then by running the STAMP benchmark suite. We find that which system performs better depends heavily on the workload characteristics. We then conduct a case study of two STAMP applications to assess the impact of programming style on RTM performance and to investigate what kinds of software optimizations can help overcome RTM's hardware limitations.

Energy evaluation

HTM

Performance evaluation

TSX

RTM

Author

Bhavishya Goel

Chalmers, Computer Science and Engineering (Chalmers), Computer Engineering (Chalmers)

Ruben Titos Gil

Chalmers, Computer Science and Engineering (Chalmers), Computer Engineering (Chalmers)

Anurag Negi

Chalmers, Computer Science and Engineering (Chalmers), Computer Engineering (Chalmers)

Sally A McKee

Chalmers, Computer Science and Engineering (Chalmers), Computer Engineering (Chalmers)

Per Stenström

Chalmers, Computer Science and Engineering (Chalmers), Computer Engineering (Chalmers)

Proceedings of the International Parallel and Distributed Processing Symposium, IPDPS

2332-1237 (eISSN)

615-624

Subject Categories

Computer Engineering

Areas of Advance

Information and Communication Technology

DOI

10.1109/IPDPS.2014.70

ISBN

978-076955207-1