Response-Time Analysis for Single Core Equivalence Framework

Mancuso, Renato; Pellizzoni, Rodolfo; Caccamo, Marco; Sha, Lui; Yun, Heechul

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https://hdl.handle.net/2142/55570 Copy

Description

Title

Response-Time Analysis for Single Core Equivalence Framework

Author(s)

• Mancuso, Renato
• Pellizzoni, Rodolfo
• Caccamo, Marco
• Sha, Lui
• Yun, Heechul

Issue Date

2014

Keyword(s)

• SCE
• multi-core
• real-time
• avionics
• automotive
• performance isolation
• inter-core interference
• hard real-time
• IMA
• many-core
• cache management
• DRAM management
• P4080

Abstract

Multi-core platforms represent the answer of the industry to the increasing demand for computational capabilities. From a real-time perspective, however, the inherent sharing of resources, such as memory subsystem and I/O channels, creates inter-core timing interference among critical tasks and applications deployed on different cores. As a result, modular per-core certification cannot be performed, meaning that: (1) current industrial engineering processes cannot be reused; (2) software developed and certified for single-core chips cannot be deployed on multi-core platforms as is. In this work, we propose the Single Core Equivalence (SCE) technology: a framework of OS-level techniques designed for commercial (COTS) architectures that exports a set of equivalent single-core virtual machines from a multi-core platform. This allows per-core schedulability results to be calculated in isolation and to hold when all the cores of the system are composed together. Thus, SCE allows each core of a multi-core chip to be considered as a conventional single-core chip, ultimately enabling industries to reuse existing software, schedulability analysis methodologies and engineering processes.

Type of Resource

• text
• dataset / spreadsheet
• image

Language

en

Permalink

http://hdl.handle.net/2142/55570

Sponsor(s)/Grant Number(s)

• CNS-1302563
• CNS-1219064
• Lockheed Martin 2009-00524
• Rockwell Collins RPS#645038
• ONR N00014-12-1-0046

Owning Collections