[ramdisk] 6400 MB/s
- April 22nd, 2011
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RAM disk & 6400 MB/s
Using disk from RAM.
Today disks and memories can much, but learn some history…
Info-graphic:
First physic disks drives what achieve transfer on level 157 MiB/s appertained just in April of 2010 year.
In 2007 year appeared RAMs, what allows to operate on data with speed from 6400 MiB/s to 12800 MiB/s.
RAM disk
Who of us does not want a disk with the same speed?
Our expectation can meet RAM disk.
In today computers RAM is usually more than 2 GiB so usage 25% or 50% of that memory is nothing impossible, because enabled computer with daily used software uses about to 768 MiB of memory.
What are bonuses of using RAM disk?
- extreme performance
- without disk “scrape”
Linux & RAM disk
Users of systems based on Linux kernel have simple task. In every distribution default is directory:
/dev/shm
That directory is nothing other than folder in RAM.
Daily uses it programs like “Pulseaudio”.
For default it dynamically takes up to 50% of RAM if it is needed.
Windows & RAM disk
You only need to install “Dataram RAMDisk” program:
Link – http://memory.dataram.com/products-and-services/software/ramdisk
In program we set size of our RAM disk and file system what we want to use on it.
Program will automatically limit maximum size for our RAM disk on our machine so we does not need to worry about it.
Practice & RAM disk
Performance tests:
For example we can make there cache folder of our Internet browser:
In my tests Opera after that operation is much faster than Chromium (Google Chrome) what uses hard disk for cache.
1. Making folder “opera/cache“:
1.1. Example for Linux:
mkdir /dev/shm/opera
mkdir /dev/shm/opera/cache
1.2. Example for Windows:
In RAM disk we create folder called "opera" and inside it folder called "cache"
2. In address field in Opera we copy it:
opera:config#UserPrefs|CacheDirectory4
And press ENTER.
2.1. And that we write for Linux:
/dev/shm/opera/cache
2.2. For Windows:
X:\opera\cache
(Where “X” is letter of your RAM disk)
3. On the down of the settings section we click “Save”.
READY!
Of course you can do the same thing in other browsers.
You need to remember that content of RAM disk will be erased after restart, because RAM is fleeting memory what disappear after disabling power.
And now you can use super fast RAM disk.
