Performance is the rope in a tug-of-war between hardware and software. Just when new processors arrive that make software run acceptably fast, and disk storage doubles for the price, new software comes out that slows right down again and requires three times the storage. The major bottleneck, memory, has not shared the gains of mass storage in terms of megabytes per dollar, keeping the most straightforward way of improving performance the most expensive.
KeywordsVirtual Memory Instance Variable Mass Storage Disk Storage Reference Count
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