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I can't see how "power efficiency" can be different from "speed" in the context of a CPU decompressor algorithm. Care to explain?
by giovannibajo1 10y ago
I can't see how "power efficiency" can be different from "speed" in the context of a CPU decompressor algorithm. Care to explain?
- eridius 10y agoI don't know the details, but I don't see why power efficiency has to be the same thing as speed. For example, various patterns of memory access or I/O may run at the same speed but could very plausibly have different amounts of energy consumption. Similarly, it's conceivable that different CPU instructions that run in the same time might have different energy demands. CPUs also have different speeds they run at which have different energy usage, it's possible that LZFSE might be designed to avoid putting the CPU into its highest-power mode. But as I said before, I don't know the details about what LZFSE does, I just know that there are various reasons why energy usage is not the same thing as CPU time.