OCB: A generic benchmark to evaluate the performances of object-oriented database systems

Abstract

Abstract. We present in this paper a generic object-oriented benchmark (the Object Clustering Benchmark) that has been designed to evaluate the performances of clustering policies in object-oriented databases. OCB is generic because its sample database may be customized to fit the databases introduced by the main existing benchmarks (e.g., OO1). OCB's current form is clustering-oriented because of its clustering-oriented workload, but it can be easily adapted to other purposes. Lastly, OCB's code is compact and easily portable. OCB has been implemented in a real system (Texas, running on a Sun workstation), in order to test a specific clustering policy called DSTC. A few results concerning this test are presented.

On using cache conscious clustering for improving OODBMS performance

“…The simulations are conducted using the Object Clustering Benchmark (OCB) [7] and the Virtual Object Oriented Database simulator (VOODB) [8]. VOODB is based on a generic discrete-event simulation framework.…”

“…The OCB workload used in this study included simple traversals, hierarchical traversals and stochastic traversals [7]. The depth of the traversals are 2, 4, and 6, respectively.…”

Augmenting the Performance of Existing OODBMS Benchmarks

“…Based on the above factors, Darmont [9] has made a comparison of the four benchmarks namely 001, HyperModel, 007 and OCB (Object Clustering Benchmark) as given in table 1. However, the factors are too generic and can be applied to any type of benchmark.…”

“…However, the factors are too generic and can be applied to any type of benchmark. [2,9,11,18,19] are proposed for object oriented databases. OO1 or "Cattell Benchmark" [7] was developed early in the nineties when there was no appropriate benchmark for engineering applications such as computer aided design (CAD), computer aided manufacturing (CAM), or software engineering (SE).…”

“…An alternative to very specific benchmarks resides in generic and tunable benchmarks such as OCB [9]. The flexibility and scalability of OCB is achieved through an extensive set of parameters that helps OCB to simulate the behavior of the de facto standards in object-oriented benchmarking.…”