Super slow on simple text editing
Answered
Big spikes on CPU load while editing simple text... (no more than 50LOC).
VM custom settings I have:
-Xms128m
-Xmx4192m
-XX:MaxPermSize=1024m
-XX:ReservedCodeCacheSize=240m
-XX:+UseCompressedOops
-Xss4m
Scenario is very simple:
Open any *.java with ~30LOC for example and hit enter for like 20lines down, and delete back. Adding & deleting 20lines few times.
As a result I see not normal CPU behaviour:

JProfiler hints to:

Any quick hints & tips on VM tuning/indexing enabling, disabling? Praying maybe :)
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Please report a performance problem at https://youtrack.jetbrains.com/issues/IDEA with the CPU snapshot attached, refer to https://intellij-support.jetbrains.com/hc/articles/207241235 for details.
If you are on Mac, https://youtrack.jetbrains.com/issue/IDEA-144261 might be the case.
Not sure how io.baseoutputreader.readavailableNonBlocking is related to 4k or anything like that...
Yes I'm on mac 15th2016/sierra 10.13.
The information from your snapshot may be not relevant, please provide YourKit snapshot as requested.
-as requested- >> as asked :) You guys become very arrogant these days.
wip on snapshot/ticket (talon dlia vas)
I'm not a native speaker, but the dictionary says that "request" is already a polite form.