performance overhead

[4ncly]

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？

[mssun]

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

[qinkunbao]

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.

[4ncly]

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