When the engine is configured in the openssl.cnf file and specified in the command line, the engine resources are not completely released.

[Zuko917]

When I configured the engine in OpenSSL and specified it in the command line, memory leakage occurred during address sanitization.
Run the following command:
LD_PRELOAD=/usr/lib64/libasan.so.8 gmssl speed -elapsed -engine xxx sm2