We say that prefetching "hides" latency because there is still latency when the data is prefetched from memory; the latency is hidden from the load instructions in that, by the time they are executed, the data is already in cache.
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We say that prefetching "hides" latency because there is still latency when the data is prefetched from memory; the latency is hidden from the load instructions in that, by the time they are executed, the data is already in cache.