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Table of Contents

PR

https://github.com/apache/incubator-mxnet/pull/17510

Problem

Currently MXNet FFI overhead is significantly larger than official numpy [1]. MXNet FFI passes its arguments mainly via ctypes. All keyword arguments are serialized to string at frontend and deserialized from string at backend, which is slow. Also the number of APIs exposed to dll is very large, which is difficult to maintain. For now, few of them have cython interfaces, which worsens the FFI performance.

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