Ubuntu – How to make a RAM disk

partitioningram

I want to make a partition that is made of ram …

Example

In windows 7 you can make a partition that is made of ram

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I have created 1 GB of partition in ram . using Primo RamDisk

Is there any good Alternative in Ubuntu ?

Best Answer

This will show you how to make a RAMDISK super fast and easily. With a RAMDISK you can use your memory for temporary space and it’s also a lot quicker than your hard drive.

Now lets start by using the next 2 commands to make your RAMDISK.

Put whatever you want your RAMDISK to be called where I wrote “nameme”.
mkdir -p /media/nameme

mount -t tmpfs -o size=2048M tmpfs /media/nameme/

The above commands would use 2GB of my RAM for the RAMDISK. If you don’t have as much ram as I do I would use 512MB or 1GB. So next were going to create a command for Terminal that will automatically create the RAMDISK for you.

Source: How To Create A RAMDISK In Linux

Related Solutions

Ubuntu – Moving files to /dev/shm ramdisk doesn’t increase RAM usage

Don't use /dev/shm, that's for a special purpose.

Instead, do something like this if you want to experiment:

sudo mkdir /ram
sudo mount -t tmpfs none /ram

Files stored in tmpfs are stored in either ram or (if there's too much memory pressure) in swap.

I don't know why you don't see an increase. Please post the actual commands you used, plus the output of the free -m shell command before and after.

You might like to read this post about understanding free memory in Linux too.

The memory will be used to cache the files from disk, so it is actually in a sense helping, assuming your load has a multi-GB working set of files. However, even heavily cached files do do some hard IO, and a ramdisk can be faster.

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Related Solutions

Ubuntu – Moving files to /dev/shm ramdisk doesn’t increase RAM usage

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