Title :
Performance and Energy Analysis of the Restricted Transactional Memory Implementation on Haswell
Author :
Goel, Bhavishya ; Titos-Gil, Ruben ; Negi, Atul ; Mckee, Sally A. ; Stenstrom, Per
Author_Institution :
Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
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.
Keywords :
benchmark testing; microprocessor chips; performance evaluation; power aware computing; synchronisation; Haswell; Intel Core i7 4770; Intel Transactional Synchronization Extension; RTM performance; STAMP benchmark suite; TSX; TinySTM software transactional memory system; energy analysis; energy expenditure; hardware transactional memory implementations; microbenchmarks; performance analysis; programming style; restricted transactional memory implementation; software optimizations; workload characteristics; Benchmark testing; Concurrent computing; Hardware; Instruction sets; Pollution; Synchronization; Energy evaluation; HTM; Performance evaluation; RTM; TSX;
Conference_Titel :
Parallel and Distributed Processing Symposium, 2014 IEEE 28th International
Conference_Location :
Phoenix, AZ
Print_ISBN :
978-1-4799-3799-8
DOI :
10.1109/IPDPS.2014.70
