I am using SQL Developer 126.96.36.199.73 on Mac OS X 10.6.2
I have noticed that quite often after some time SQL Developer starts to create large CPU load (e.g. 50% of one CPU core) even when SQL Developer is idle and is not performing any activity.
Today I used jconsole with topthreads.jar (as described in http://lsd.luminis.nl/top-threads-plugin-for-jconsole/) to find out active threads of SQL Developer. Here is the screenshot of it:
Based on methods that AWT-EventQueue-0 thread is executing I suspect that it is repainting all the time some progress bar (but I do not see any progress bar on screen). Here is some snapshot of stack trace of this thread:
Total blocked: 294,144,166 Total waited: 263,074,361
I am having the same problem. MAC OS X 10.6.6 with SQL Developer 2 (version 1.1). Basically, it seems to have gotten worse. Uses a couple GB of physical and virtual RAM and pegs the CPU. When i launch Sql Developer, my macbook starts to sound like a jet engine due to the cpu/fan