Benchmark scenario: open IntelliJ IDEA Ultimate source code base and perform "Invalidate Caches" action. After restart, IntelliJ IDEA re-indexes the whole project and this re-indexing time is measured.

Full specs of the computers we used:

1. Sony Vaio Z, Core i5 (2.4 GHz), SSD, Windows 7 x64
2. Core i7 (2.8 GHz), HDD 10K rpm, Windows 7 x64
3. Core i7 (2.8 GHz), HDD 10K rpm, Ubuntu 10.10 x64
4. MacBook Air Core 2 Duo (2.13 GHz), SSD, Mac OS X 10.6.5
5. Dell Vostro Core 2 Duo (2.2 GHz), HDD 7200 rpm, Windows Vista