How many threads would it take to hide 100ns of DRAM access latency and what ser... | Hacker News

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		yosefk on Feb 4, 2023 \| parent \| context \| favorite \| on: AMD Killed the Itanium (2005) How many threads would it take to hide 100ns of DRAM access latency and what serial performance would we get?

nullc on Feb 5, 2023 [–]

It doesn't have to be hidden completely, there are still caches.

With 2 unstalled threads you effectively halve it (in terms of throughput), 4 unstalled threads you effectively quarter it, etc.

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