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comment Why is CPU cache memory so fast?
Hard limit for copper. This is a good point though, I didn't consider how ridiculously fast modern processors are.
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accepted Why is CPU cache memory so fast?
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31
comment Why is CPU cache memory so fast?
@mattnz Good point, I'll ask again over there.
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comment Why is CPU cache memory so fast?
@CharlesE.Grant So is it fair to say that the raw performance of L1 and L2 cache are identical, but are limited by their location on the chip? So this is still a locality issue?
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comment Why is CPU cache memory so fast?
@RobertHarvey Right, but why is it faster, considering they're both on the same chip. Is one still more local somehow?
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comment Why is CPU cache memory so fast?
This makes sense. But now I wonder why L1 cache is still faster than L2 cache even though they're both on the same chip.
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comment Why is CPU cache memory so fast?
@marcocs edited for clarity. I'm referring to CPU cache memory and main system memory, i.e. the removable dimms on most motherboards.
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revised Why is CPU cache memory so fast?
Clarity
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asked Why is CPU cache memory so fast?
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accepted Patterns for propagating changes up an object model..?
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