I want to boot my linux as fast as possible.
I have to make a choice between initrd and intiramfs.
Which one should mount faster and have smaller size?
closed as primarily opinion-based by slm♦, Anthon, Thomas Nyman, jasonwryan, Braiam Apr 11 '14 at 23:57
Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.
For as fast as possible boot, you will probably want to boot without any initrd/initramfs (which is totally possible). You'll have to make sure that all drivers that are necessary to get access to main fs (like filesystem or HDD controller) are compiled into kernel not as modules.