Try these. There are two ways.

First Procedure

Refer this article.

http://www.javacodegeeks.com/2014/06/the-real-way-to-make-eclipse-run-faster-on-ubuntu.html

Second Procedure.

Execute the command in the terminal.

ramdisk

to get better performance and fast response for Ubuntu.

Ramdisk is part of system memory. Ubuntu by default uses a half of physical memory (RAM) as ramdisk, and it is mounted onto

/dev/shm

, it can be used just like normal disk space (create files and folders and manipulate them with better performance rather if they were stored on the hard disk). If ramdisk uses more than a half of RAM, data will be moved into the swap space. If ramdisk uses less, the remaining can still do what RAM’s doing.

Set upper limit of ramdisk

As is said above, ramdisk by default can use a half of RAM. If you want to change the upper limit, follow the steps below:

Edit /etc/fstab by your favourate editor: gksudo gedit /etc/fstab Find this line and change to make it looks like this(add this line if not exist, and change 512M to what you like.): tmpfs /dev/shm tmpfs defaults,size=512M 0 0 Reboot or re-mount /dev/shm

Mount /tmp onto ramdisk

To make it easy to use, you can mount a directory into

/dev/shm

by following commands:

mkdir /dev/shm/tmp

chmod 1777 /dev/shm/tmp

mount --bind /dev/shm/tmp /tmp