Ramdisk in Mac OS X

Question

macOS

At one time on Windows, I used a similar option.

What is the easiest way to implement the same thing in Mac OS X, and how justified is it to use it?

Answer 1

on 512M:
diskutil erasevolume HFS+ "ramdisk" $(hdiutil attach -nomount ram://1165430)


Answer 2

the value 1165430 is in blocks, the calculation is made by multiplying the number of KB that the disk requires by 2048.
1Gb = 1024 * 2048 = 2097152