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I just have installed intelliJ IDEA 15 but it's somehow laggy and uses a lot of RAM. Sometimes more than 1GB on my 4GB-RAM laptop.
Are previous versions of intelliJ better in performance?
How can i make it faster?
And another problem I have is with Auto completion and correction.
Where are these two settings? Cause it doesn't seem as good as Eclipse.
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IntelliJ IDEA memory usage Follow IntelliJ itself reports that it is using a little more than 1GB of heap but the OS reports that it is using anywhere from 3.5 to 4.5 GB.
From the main menu, select Help | Change Memory Settings. Set the necessary amount of memory that you want to allocate and click Save and Restart.
IntelliJ requires quite a lot of memory. If you don't give it enough memory it will become slow.
Usually if you have performance problems, the first place I would advice is to look at the plugins which are activated, perhaps you don't need those plugins.
File -> Settings -> Plugins
Secondly, intelliJ indexes your files so that all its wonderful searches and short cuts, so, if you have a huge project, the first indexing will take some time.
For tips on auto-completion etc. Take a look at the official docs. https://www.jetbrains.com/idea/help/auto-completing-code.html
Extra Tips
When I started using IntelliJ, I found lot of videos on youtube about how to use it, these tips have helped me get more productive. I don't want to start a debate on Eclipse vs IntelliJ vs Netbeans etc., but each IDE has a vision and a way it was intended to be used, so moving from one to another does need a ramp up time.
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