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But who is going to be able to use those new completely non-compatible chips for real world workload? The problem for any fix is the same that faced Intels Ita

But who is going to be able to use those new completely non-compatible chips for real world workload? The problem for any fix is the same that faced Intels Itanium chips and the manycore/CELL architectures is that you kind of have to reinvent the compiler to use them and for manycore even that is not enough.

nitr0wnedalso 9y ago
In the AWS case it probably would have to be transparent to users if they designed their own cpu. I can’t imagine they’d get very far requiring recompilation or with a performance impacting translation layer. My main point is that cloud services infrastructure seems to be moving away from open source software hypervisors (eg Xen) on commodity hardware towards opaque custom virtualization on custom hardware. If they wanted to assure their own security against bugs like spectre they would be more likely to design their own CPUs than to use an open source one.