The same application performs differently on different platforms. Differences include compiler brand (Microsoft Visual C++ vs gcc), compiler version (gcc 3 and 4), operating system characteristics, and file systems. These OpenOffice.org 3.0 benchmarks measure vanilla OpenOffice.org, StarOffice, Go-oo, and Portable OpenOffice.org on 3.0 on Microsoft Windows XP and Ubuntu 8.10 (Intrepid Ibex). Each OS and OOo flavour did well in different tests.