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by ComputerGuru
1093 days ago
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That last sentence can be pedantically true, if you look at in a very strict context. It doesn't say the variable can be returned in 1ns - but even if it did, it says the inter-thread coordination can take place in "as little as" 1ns. If a L1 cache immediately returning it's cached value for a memory address because it has the data in E or M state, that's technically a form of inter-thread coordination, just using already-coordinated state. |
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