PQEMU: A Parallel System Emulator Based on QEMU

A full system emulator, such as QEMU, can provide a versatile virtual platform for software development. However, most current system simulators do not have sufficient support for multi-processor emulations to effectively utilize the underlying parallelism presented by today's multi-core proces...

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Published in2011 IEEE 17th International Conference on Parallel and Distributed Systems pp. 276 - 283
Main Authors Jiun-Hung Ding, Po-Chun Chang, Wei-Chung Hsu, Yeh-Ching Chung
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2011
Subjects
Emulation
Emulator
Engines
Hardware
Instruction sets
Multi-core
Multicore processing
Parallel
Parallel processing
Sychronization
Online AccessGet full text
ISBN1457718758
9781457718755
ISSN1521-9097
DOI10.1109/ICPADS.2011.102

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Abstract A full system emulator, such as QEMU, can provide a versatile virtual platform for software development. However, most current system simulators do not have sufficient support for multi-processor emulations to effectively utilize the underlying parallelism presented by today's multi-core processors. In this paper, we focus on parallelizing a system emulator and implement a prototype parallel emulator based on the widely used QEMU. Using this parallel QEMU, emulating an ARM11MPCore platform on a quad-core Intel i7 machine with the SPLASH-2 benchmarks, we have achieved 3.8x speedup over the original QEMU design. We have also evaluated and compared the performance impact of two different parallelization strategies, one with minimum sharing among emulated CPU, and one with maximum sharing.
AbstractList A full system emulator, such as QEMU, can provide a versatile virtual platform for software development. However, most current system simulators do not have sufficient support for multi-processor emulations to effectively utilize the underlying parallelism presented by today's multi-core processors. In this paper, we focus on parallelizing a system emulator and implement a prototype parallel emulator based on the widely used QEMU. Using this parallel QEMU, emulating an ARM11MPCore platform on a quad-core Intel i7 machine with the SPLASH-2 benchmarks, we have achieved 3.8x speedup over the original QEMU design. We have also evaluated and compared the performance impact of two different parallelization strategies, one with minimum sharing among emulated CPU, and one with maximum sharing.
Author Wei-Chung Hsu
Yeh-Ching Chung
Po-Chun Chang
Jiun-Hung Ding
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  organization: Dept. of Comput. Sci., Nat. Tsing Hua Univ., Hsinchu, Taiwan
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SubjectTerms Emulation
Emulator
Engines
Hardware
Instruction sets
Multi-core
Multicore processing
Parallel
Parallel processing
Sychronization
Title PQEMU: A Parallel System Emulator Based on QEMU
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