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Data Prefetching
Lund Institute of Technology, Department of Computer Science, SDE Research
Jonas Skeppstedt
The goal of this research is to develop and evaluate compiler algorithms
to reduce the performance penalty due to cache misses in multiprocessors.
The current emphasis is on data prefetching. Traditionally, compiler-controlled
prefetching inserts special prefetch instructions in loops in order to
fetch data before it is needed by the processor. While this approach removes
cache misses, it can also increase the instruction count, sometimes significantly.
We investigate new prefetch approaches which provide the same benefits
of a reduced number of cache misses, while producing a minimal increase
in instruction count. This is work done in cooperation with Professor Michel
Dubois at the University of Southern California, Los Angeles.
For more information, see the publication
list of Jonas Skeppstedt.
Last modified: September 1, 1999