Optimize eclipse performence

Try the below setting for eclipse.ini file under eclipse directory. It will give you better performance then default configuration.

(Backup your existing eclipse.ini file before any changes)

-startup

plugins/org.eclipse.equinox.launcher_1.3.0.v20120522-1813.jar

--launcher.library

plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.200.v20120522-1813

-product

org.eclipse.epp.package.jee.product

-vm

C:\root\Dev\Java\jdk1.7.0_09\jre\bin\server\jvm.dll  
#Path of your installed JRE

-Dosgi.requiredJavaVersion=1.7 
#Correct JRE version                                                                                                                           

--launcher.defaultAction

openFile

--launcher.XXMaxPermSize

256M

-showsplash

org.eclipse.platform

--launcher.XXMaxPermSize

256m

--launcher.defaultAction

openFile

-vmargs

-server

-Declipse.p2.unsignedPolicy=allow

-Dhelp.lucene.tokenizer=standard

-Xms1024m                                                                       
#Memory Settings (eclipse loves ram)

-Xmx1024m

-Xmn128m

-Xss4m

-XX:PermSize=128m

-XX:MaxPermSize=256m

-XX:+UseParallelGC                                                     

-Xverify:none                                                   

-XX:+UseFastAccessorMethods

Eclipse Shortcuts

Download the printable version here. Print, use, modify and share!
Navigation		Working with Editor
Ctrl + Shift + R	Open / Search for resources, e.g. files	Ctrl + 1	Quickfix; result depending on cursor position
Ctrl + Shift + T	Open / Search for Types	Ctrl + I	Correct Indentation
Ctrl + E	Allows to select an editor from the currently open editors	Ctrl + Space	Content assist/ code completion
Ctrl + F8	Shortcut for switching perspectives	Ctrl + L	Go to line no
Ctrl + F7	Move between views	Ctrl + T	Show the inheritance tree of the current Java class
Alt + Let / Right	Go to previous/ next editor position in history	F12	Focuses on the editor.
Alt + Up / Down	Move line up / down	Ctrl + M	Maximize Java editor
F3	Go to the declaration of this variable	Ctrl + Shift + F	Format source code
Ctrl + Shift + P	Go to the matching bracket	Ctrl + Shift + O	Organize the imports; will import the missing import statements.
Ctrl + Left / Right	Move one element to the left / right	Ctrl + Q	Go to position the cursor at the last changed.
Ctrl + Up / Down	Scroll up / down a line in the editor	Ctrl + Alt + Z	Wrap the select block of code into a block, e.g. try/catch.
Alt + Shift Up / Down	Select the previous / next syntactical element	Ctrl + 2, L	Assign statement to new local variable
Alt + Shift Up / Down / Left / Right	Extending / Reducing the selection of the previous / next syntactical element	Ctrl + 2, F	Assign statement to new field
Ctrl + .	Go to the next problem / error	Shift + F2	Show the Javadoc for the selected type / class / method
Ctrl + ,	Go to the previous problem / error	Ctrl + Alt + Up/Down	Copy line
Ctrl + H	Java search in workspace	Alt + Shift + Z	Surround block with try and catch
F4 on a variable	Show type hierarchy of an Class	Alt + Shift + R	Rename
Ctrl + J , Ctrl + K	Incremental search, find next	Ctrl+2, R	Rename locally (in file), faster then Alt + Shift + R
Ctrl + Shift + G	Search for references in the workspace	Alt + Shift + T	Opens the quick refactoring menu
Run and Debug		Ctrl + S	Saves current editor
F5	Step into.	Ctrl+ D	Deletes current line in the editor
F6	Step over.	Ctrl + Shift + O	Adjusts the imports statements.
F7	Go to the caller of the method/ function.	Ctrl + 2, L or F	Assign statement to new local variable or field
F8	Go to the next breakpoint.	Ctrl + Shift + T	Open Type Dialog
Ctrl + Q	Inspect	Ctrl + O	Shows quick outline of a class
Ctrl + F11	Run last launched	Ctrl+3	Master Shortcut
Alt + Shift + X - J	Run current selected class as Java application	Ctrl + Alt + L	List out all Shortcuts
Ctrl + F11	Run last launched application