[apache/incubator-teaclave-sgx-sdk] performance overhead (Issue #379)

[4ndy <no...@github.com.INVALID>]

i implement a rust program in sgx with rust sgx sdk, but i find that it cost more than 60%-80% time to execute program, is this normal？

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Re: [apache/incubator-teaclave-sgx-sdk] performance overhead (Issue #379)

[Mingshen Sun <no...@github.com.INVALID>]

Hi, can you also put the code, testbed, and how you measure the overhead? This will be very helpful when discussing the performance overhead.

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Re: [apache/incubator-teaclave-sgx-sdk] performance overhead (Issue #379)

[4ndy <no...@github.com.INVALID>]

thank you very much, I find that my program needs multithreading optimization and sgx does't support that lib

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Re: [apache/incubator-teaclave-sgx-sdk] performance overhead (Issue #379)

[Qinkun Bao <no...@github.com.INVALID>]

My experience (could be wrong)
1. If a program is CPU-intensive, the average overhead is 30% to 50%
2. If a program uses main memory a lot (e.g., the size of allocated memory is larger than the EPC size), the program may have thousands of performance penalties.

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