Is it safe to make several module instance from single module?

[palchikov]

Hi there! In my scenario I want to have many modules instantiated from the same AOT file. They should be completely independent from each other, have their own memories and execution flow.
Currently I'm doing wasm_runtime_load() for each copy. And each wasm_runtime_load() makes mmap to first 2GB of host memory. Typical size of text section of my modules is 5-7MB and I want to have several hundred of module instances.
I'm wondering if I can create module via wasm_runtime_load() once and then create hundred instances via wasm_runtime_instantiate()? Will they still be completely isolated from each other?

[lum1n0us]

Generally speaking, a WebAssembly runtime creates instances as the execution form for a module. Each instance has its own linear memory, which is essentially equivalent to a separate running state. So wasm_runtime_instantiate() only should be OK.