I do this quite frequently, but use the following stackoverflow https://stackoverflow.com/questions/18215389/how-do-i-measure-request-and-response-times-at-once

I do this quite frequently, but use the following stackoverflow https://stackoverflow.com/questions/18215389/how-do-i-measure-request-and-response-times-at-once-using-curl https://stackoverflow.com/questions/18215389/how-do-i-measur... This blog appears to be much of the same, regardless, good information to get out there.