Test the performance of marshalling / unmarshalling using these two.
Inline vec could invoke more memory copy if we use a larger on-stack array capacity; on the other hand, std's vec could have some additional allocation cost and pointer indirection cost.
Test the performance of marshalling / unmarshalling using these two. Inline vec could invoke more memory copy if we use a larger on-stack array capacity; on the other hand, std's vec could have some additional allocation cost and pointer indirection cost.