[CJefferson]

This really is too brief a study (although it's obviously fine for someone to write a quick blog-post about whatever they want).

Most importantly, how fast is the disk? I suspect (but would benchmark if I really needed to know) that the effects of compressions will be greatly different on an older 7,200 rpm spinning disk, vs a modern SSD.

[lathiat]

It's a very good question because his copies are stupidly slow. Only 15MB/s. You could probably compress that in real time on a raspberry Pi!

It's a very poor test.

[kalleboo]

I remember SandForce-based SSDs used to do compression in the disk firmware, are there any current SSDs that do the same?