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1998

Performance Evaluation of the Orca Shared-Object System

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Performance Evaluation of the Orca Shared-Object System
Orca is a portable, object-based distributed shared memory system. This paper studies and evaluates the design choices made in the Orca system and compares Orca with other DSMs. The paper gives a quantitative analysis of Orca’s coherence protocol (based on write-updates with function shipping), the totally-ordered group communication protocol, the strategy for object placement, and the all-software, user-space architecture. Performance measurements for ten parallel applications illustrate the tradeoffs made in the design of Orca, and also show that essentially the right design decisions have been made. A write-update protocol with function shipping is effective for Orca, especially since it is used in combination with techniques that avoid replicating objects that have a low read/write ratio. The overhead of totally-ordered group communication on application performance is low. The Orca system is able to make near-optimal decisions for object placement and replication. In addition, ...
Henri E. Bal, Raoul Bhoedjang, Rutger F. H. Hofman
Added 23 Dec 2010
Updated 23 Dec 2010
Type Journal
Year 1998
Where TOCS
Authors Henri E. Bal, Raoul Bhoedjang, Rutger F. H. Hofman, Ceriel J. H. Jacobs, Koen Langendoen, Tim Rühl
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