First of all I want to say thank you for developing Intellij IDEA it's great IDE.
Last versions are not so stable and fast as previous. So we decided to upgrade from 8.1.x to 11.0.x. (reworked indexing engine, multithreading, Java 7 support)
I experienced lags when typing (delays: autocomplete 500ms, param info: 1s, no show doc, autoreparse: 500ms). IDE in power save mode works like 'Visual' NOTEPAD from Windows - disabled almost all checks - so not very usable. Even just moving text cursor around source code need up to 70% on signle core slow machine (millions of char allocations).
Inspect code on module is several times slower than 8.1.x (same project and settings). Insection by name after run is disabled and can't be restarted.
Please is it possible to improve IDEA? Thank you very much.
IDE runs on linux 2.6.x, 3.1.x (kernel), Java 6u30 i586, Java 7u2 i586, x86_6, Graphics acceleration enabled, working (nVidia drivers)
1: AMD 64, 1800MHz 1 core, 2GB, Xmx640M
2: Intel 4 core (no HT), 8GB, Xmx640M
Projects: Java SE 6/7
LOC: ~60 000, > 4MB, >6 modules in projects