DESCRIPTIONThis command is used to test the performance of cryptographic
algorithms. OPTIONS
-engine id specifying an engine (by it's unique id string) will cause
speed to attempt to obtain a functional reference to the specified
engine, thus initialising it if needed. The engine will then be
set as the default for all available algorithms.
[zero or more test algorithms] If any options are given, speed tests those algorithms, otherwise
all of the above are tested.
HP Open Source Security for OpenVMS Volume 2:... 
OpenSSL Command Line Interface (CLI) Reference
