Scheduling garbage collector for embedded real-time systems

Taehyoun Kim, Naehyuck Chang, Namyun Kim, Heonshik Shin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

This paper proposes a new scheduling method for multiple mutators and a garbage collector running on embedded real-time systems with a single processor and no virtual memory. The hard realtime tasks should reserve a certain amount of heap memory to prevent memory starvation and/or deadline miss. Since the memory requirement depends on the worst-case response time of a garbage collector, the traditional approach in which garbage collection is performed in the background demands large memory space. The proposed scheduling algorithm is based on an aperiodic scheduling technique, sporadic server. This paper also presents a modified copying garbage collection algorithm with hardware support. In order to minimize the worst-case response time of a garbage collector thus reducing the memory requirement, the garbage collector runs as the highest priority task with a preset bandwidth. This paper also investigates the schedulability of a garbage collector and mutator tasks as well as the worst-case memory requirement. Performance analysis shows that the proposed algorithm can provide a considerable reduction in the worst-case memory requirement compared with the background policy. Simulation results demonstrate that the proposed algorithm can produce the feasible memory requirement comparable to the complex on-line scheduling algorithm such as slack stealing.

Original languageEnglish
Title of host publicationProceedings of the ACM SIGPLAN 1999 Workshop on Languages, Compilers, and Tools for Embedded Systems, LCTES 1999
PublisherAssociation for Computing Machinery
Pages55-64
Number of pages10
ISBN (Electronic)1581131364, 9781581131369
DOIs
StatePublished - 1 May 1999
Event1999 ACM SIGPLAN Workshop on Languages, Compilers, and Tools for Embedded Systems, LCTES 1999 - Atlanta, United States
Duration: 5 May 1999 → …

Publication series

NameProceedings of the ACM SIGPLAN Conference on Languages, Compilers, and Tools for Embedded Systems (LCTES)
VolumePart F129197

Conference

Conference1999 ACM SIGPLAN Workshop on Languages, Compilers, and Tools for Embedded Systems, LCTES 1999
Country/TerritoryUnited States
CityAtlanta
Period5/05/99 → …

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