Post #2429456
2026-04-30 04:47 UTC
@argv_minus_one@mastodon.sdf.org No, because it performs slightly worse and isn't popular in the particular CPU architectures popular right now.
Other architectures did use it in the past.
extra circuitry required for speculative execution
I am not familiar enough with electrical engineering and hardware design to comment on just how it's implemented physically.
I consider that "slightly worse performance but actually correct behavior" is more important than "maximize meaningless benchmarks & bloat numbers as much as possible".
Replies (1)
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@argv_minus_one@mastodon.sdf.org 2026-04-30 04:52
@lispi314@udongein.xyz Server people don't care what CPU architecture is popular. They'll compile their code for whatever hardware is best. So if the performance of such a machine were only slightly worse, then I really can't imagine why people wouldn't be using it by now. They've already accepted performance penalties for Meltdown mitigation, and those penalties were not slight.