I don't understand the last sentence. 'duff'? 'overlapping access'?
Henry Rich
On 4/9/2022 9:37 PM, Elijah Stone wrote:
On Sat, 9 Apr 2022, Henry Rich wrote:
JE generally does few data-dependent branches, and I expect it would
not be a good idea to use two hyperthreads in one core; but you'll
have to make that decision.
Branch miss is tens of cycles; cache miss is hundreds.
Re branches: from what I've seen, there is too much duff and not
enough overlapping access. Though I guess those are
metadata-dependent branches, not data-dependent branches :)
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