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SPC-1 ([36,17]) is a widely used commercial benchmark provided by the
Storage Performance Council. It uses a sophisticated workload that
simulates business critical environments like OLTP systems,
database systems and mail server applications.
We use a prototype implementation of the SPC-1 benchmark called SPC1-Read,
that matches the specifications of the read component of the SPC1 workload([37]), which
comprises uniform random (10%), hierarchical reuse random (65%), and incremental
sequential (25%) access patterns. The and of the constituent workloads are continuously varied according to the probability
distribution prescribed by the benchmark.
The impact that the write component has on concurrent reads
depends on the choice of the size of the write
cache, the order of destages as well as the timing of the destages([38]).
It serves us well to ignore the write component of the workload so as to
clearly appreciate the relative performance of the prefetching
algorithms without diluting the results with writes.
root
2006-12-19