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Measuring operating system overhead on CMT processors

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10.1109/SBAC-PAD.2008.19
 
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hdl:2117/6579

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Radojković, Petar
Cakarevic, Vladimir
Verdú Mulà, JavierMés informacióMés informacióMés informació
Pajuelo González, Manuel AlejandroMés informacióMés informacióMés informació
Gioiosa, Roberto
Cazorla Almeida, Francisco Javier
Nemirovsky, Mario
Valero Cortés, MateoMés informacióMés informacióMés informació
Document typeConference report
Defense date2008
PublisherIEEE Computer Society Publications
Rights accessOpen Access
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
Numerous studies have shown that Operating System (OS) noise is one of the reasons for significant performance degradation in clustered architectures. Although many studies examine the OS noise for High Performance Computing (HPC), especially in multi-processor/core systems, most of them focus on 2- or 4-core systems. In this paper, we analyze the major sources of OS noise on a massive multithreading processor, the Sun UltraSPARC T1, running Linux and Solaris. Since a real system is too complex to analyze, we compare those results with a low-overhead runtime environment: the Netra Data Plane Software Suite (Netra DPS). Our results show that the overhead introduced by the OS timer interrupt in Linux and Solaris depends on the particular core and hardware context in which the application is running. This overhead is up to 30% when the application is executed on the same hardware context of the timer interrupt handler and up to 10% when the application and the timer interrupt handler run on different contexts but on the same core. We detect no overhead when the benchmark and the timer interrupt handler run on different cores of the processor.
CitationRadojkovic, P. [et al.]. Measuring operating system overhead on CMT processors. A: 20th Symposium on Computer Architecture and High Performance Computing. "20th Symposium on Computer Architecture and High Performance Computing". Campo Grande: IEEE Computer Society Publications, 2008, p. 133-140. 
URIhttp://hdl.handle.net/2117/6579
DOI10.1109/SBAC-PAD.2008.19
ISBN978-0-7695-3423-7
Publisher versionhttp://ieeexplore.ieee.org/document/4685737/
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