Nowadays, the new processors speed has been increased a lot. It's time to compare the performance of a compressed hard drive with non-compressed one. I don't talk about more hard drive space, I want to reduce the hard drive read operations.
I think that reading, for example, 10MB of data and decompressing it in RAM to have from 20 to 100 MB of data can be quicker than reading 20 to 100 MB form the hard drive. Streaming compression can be used to reduce the response time.
The same idea can be applied to network connections. Networks use to be slow compared to hard drives (home and small office networks) and then, compression can be much more aggressive.
I plan to make a few tests and see if that "idea" is true or false.