WebStorm uses 100% CPU

Question

I use WebStorm 11 and developing in Angular2. The ng serve is working on background from the cmd and the CPU is on 1% work.

When the WebStorm is opening, the CPU jump to 30%-60% and when he start indexing it goes to 100% until the WebStorm crushes.

• I have Intel(R) Core(TM) i503210M CPU @ 2.50GHz 2.50GHz and 8G RAM (I don't have RAM problem).
• I excluded dist and node_modules folders but the indexing still takes too long.

WebStorm.exe.vmoptions:

-server
-Xms128m
-Xmx1012m
-XX:MaxPermSize=512m
-XX:ReservedCodeCacheSize=512m
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50
-ea
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow

1. What does the indexing do? Can I turn it off?
2. What is the best way to configure this for small projects?

Answer 1

For people that aren't already, make sure you aren't indexing your dist or www folders.

Right click the folder -> "Mark Directory As" -> "Excluded".

Saved me!

Answer 2

What does the indexing do? Can I trun it off?

The index process creates a database of your code, enabling fast searches, code completion, symbol lookup, etc. I don't think you can turn it off, but if you did, WebStorm wouldn't be very useful to you anyway.

This is a well-known issue with WebStorm, but has gotten better with recent versions. See also: https://www.themarketingtechnologist.co/webstorm-10-improves-the-performance-of-indexing-files/