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Pitfalls of
benchmarking: if done with an application with
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low F would
grossly overestimate performance.
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Actual memory
performances very different due to
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memory latency
etc.
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Example: for 1.5
Ghz Intel processors the load latencies
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for L1 and L2 are
about 2 and 6 clock cycles
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respectively.
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These latencies
increase drastically once main memory
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is accessed due
to bus limitations.
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To overcome these
problems techniques such as
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prefetch, data
restructuring (more later) should be used.
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