Rubymine Sucks up CPU


I've had several instances where RubyMine sucks up 100% CPU.

It doesn't happen all the time, but when it happens, it doesn't seem to be doing anything visible (indexing or something like that), and the editor really becomes unusable, (ie, type a letter, takes 2-3 seconds to show up on the screen).

I tried do what this document said to:

However, when I make the change in the startup script to enable the CPU and Memory snapshot crashes when I try to start rubymine.  I take out the change that the document recommends and it is fine.

I'm using the Beta 2 version 2 rubymine on Mac OS X Leopard.

Any ideas?



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Hello lylo,

I spoke too soon.  Getting massive CPU spikes again in the last hours.
I've uploaded 5 CPU snapshots and one memory snapshot, plus I've
'blamed rubymine core' a few times due to IDE errors.  I hope you can
find and solve more bugs from this!

We did. :) Please try the RC2 build which is now available on the Web site.

Dmitry Jemerov
Development Lead
JetBrains, Inc.
"Develop with Pleasure!"

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Hi again

I'm now running the official 2.0 release but I'm afraid I'm still seeing CPU spikes and terrible performance.   I have restarted the application but it didn't help -- just scrolling a CSS file is causing CPU usage to hit 120% -- this is crazy.  I've taken yet another CPU (x2) and memory snapshot and uploaded them to the FTP site.

Please can you get the dev time to spend a week bug mashing all these GC/memory issues?   New features are great, but not if the application is so slow as to be unusable.  Developers need an IDE which is super-responsive at all times, it's the most important aspect of any IDE!

Back to TextMate again....


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