Access time for Ramdisk is not as fast as I expected

mpathak · 02-18-2010, 03:12 PM

Hello all,
I am trying to use the Linux Ramdisk on my machine and followed the instructions on http://www.vanemery.com/Linux/Ramdisk/ramdisk.html
to create a 4GB ramdisk (total memory is 8GB, linux 2.6.9)

The issue is that it is taking me almost exactly the same time to read a 1GB file from ramdisk as it is from disk. I was expecting it to be atleast twice as fast...
Has anyone encountered this before?

Thanks in advance,
Mukta

kbp · 02-18-2010, 04:33 PM

It should be noticeably quicker... how much memory do you have free once you've opened the file ? (free -m)