Measuring the change in model size after compiling with tvm.relay

Questions
#1

I am trying to measure the change in size of PyTorch models after they are compiled with tvm relay.

I am comparing the file sizes after I write them on hard drive. Below is the code I use for this purpose:

def print_size_of_model(mod, label=" ", lib=None, is_tvm=False):
    if is_tvm:
        lib.export_library("temp.p")
        size2 = os.path.getsize("temp.p")
        size = size2
    else:
        torch.save(model.state_dict(), "temp.p")
        size=os.path.getsize("temp.p")
    
    
    print("model: ",label,' \t','Size (KB):', size/1e6)
    os.remove('temp.p')
    return size

# compare the sizes
f=print_size_of_model(model, "PyTorch")
q=print_size_of_model(mod=None, label = "tvm Relay",  lib=lib,  is_tvm=True)
# print("{0:.2f} times smaller".format(f/q))
md("### Result: {0:0.2f}x model size reduction by compilation with tvm relay".format(f/q))

the lib parameter that I use to represent the model generated from tvm.relay is of type tvm.runtime.module.Module. Maybe I need a better representation.

Result I get right now is

model: PyTorch Size (KB): 422.502841
model: tvm.relay Size (KB): 1.189032

Result: 355.33x model size reduction by compilation with tvm relay

But I am afraid that it is not true. I appreciate any suggestion for correcting the result.