Linux access time efficiency question
Posted on 2013-01-05
This is not a "how to", I just want to understand something.
As we know Linux is a very efficient system. However this concept of access time has me a little confused.
For example, if I did a find through the whole OS would it update the access time on every file? It just seems that would be incredibly inefficient with umteen file system writes to update a time stored on the hard disk for every file found.
If not does it get updated with an "fopen" statement or something else.
In other words, can someone tell me exactly what constitutes the access time getting updated?
Thanks... just furthering my in depth knowledge of Linux.