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SubjectRe: [PATCH v2 1/2] x86/sgx: Add accounting for tracking overcommit
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On 1/11/22 06:20, Haitao Huang wrote:
> If the system has a ton of RAM but limited EPC, I think it makes sense
> to allow more EPC swapping, can we do min(0.5*RAM, 2*EPC)?
> I suppose if the system is used for heavy enclave load, user would be
> willing to at least use half of RAM.

If I have 100GB of RAM and 100MB of EPC, can I really *meaningfully* run
50GB of enclaves? In that case, if everything was swapped out evenly, I
would only have a 499/500 chance that a given page reference would fault.

This isn't about a "heavy enclave load". If there is *that* much
swapped-out enclave memory, will an enclave even make meaningful forward
progress?

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