Efficient execution of switch instructions on a multicore Java co-processor system

Author

Tyystjärvi, Joonas ; Santti, Tero ; Plosila, Juha

fYear

2009

fDate

14-15 Dec. 2009

Firstpage

1

Lastpage

5

Abstract

Techniques are presented for reducing the performance overhead of switch instructions in a multicore hardware-accelerated Java virtual machine. The bytecode instruction set is extended with two new instructions suitable for hardware implementation and the complicated switch instructions are converted in the software portion of the virtual machine into series of hardware-implemented instructions using these extensions. The performance, logic and memory usage impact of this technique is evaluated and compared with a pure software implementation. Various techniques for performing a key search in lookup switches are also evaluated.

Keywords

Java; coprocessors; instruction sets; multiprocessing systems; virtual machines; bytecode instruction set; hardware accelerated Java virtual machine; hardware implemented instructions; key search; lookup switches; multicore Java coprocessor system; performance overhead; switch instructions execution; Communication switching; Computer science; Coprocessors; Councils; Hardware; Information technology; Java; Multicore processing; Switches; Virtual machining;

fLanguage

English

Publisher

ieee

Conference_Titel

Technical Postgraduates (TECHPOS), 2009 International Conference for

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4244-5223-1

Electronic_ISBN

978-1-4244-5224-8

Type

conf

DOI

10.1109/TECHPOS.2009.5412073

Filename

5412073