to answer the first question: It is 50us create a new instance from a loaded WebAssembly module. The module is compiled AOT into a shared object file, which is

to answer the first question: It is 50us create a new instance from a loaded WebAssembly module. The module is compiled AOT into a shared object file, which is then loaded into the runtime using `dlopen`. We create instances from a region, which is basically a pool of memory that is already mostly setup, to minimize the computation & syscalls required in instance creation.