You have to define usage here. They are giving an example of a single piped command on a file of who knows what size, probably not very big, hence milliseconds.

You have to define usage here. They are giving an example of a single piped command on a file of who knows what size, probably not very big, hence milliseconds. However when it comes down to scripting large log processing, backups, and other forms of automation then I think it will yield better performance. Not to mention good coding practices, I am looking to improve in any form, something like this changes the way you think which will prove to be very useful when programming in ruby, c, java, etc. Not necessarily the use of piping commands, but just about how to be more efficient and less wasteful.