Getting time from profiler

[OriAlpha]

From the following code, we can get profiling information after doing inference with onnx runtime, But can i get total inference time of model, by reading the json file.

with open('onnxruntime_profile__2022-04-23_01-57-50.json', "r") as f:
    sess_time = json.load(f)
import pprint
pprint.pprint(sess_time)

any ideas only to get time info