Numbers are in. Note that some of these tests were conducted on machines/os not certified by official documentation and stability is not guaranteed. Antivirus software on windows platforms were disabled (when turned on, the performance times were greatly increased). Also, our corporate win7 laptops runs encryption software that could effect performance. The jdeveloper versions used were 10gr3 and 11gr2. Although 11gr2 startup time seems slower vs 10g, the embedded wls has a fast swap option which allows developers to quickly see changes without wls restart.
Currently our team develops with the ubuntu and xp setup. Compile and runtimes are significantly faster on ubuntu.
embedded oc4j actually runs faster on ubuntu with an old 2duo setup vs win7 i7!
Fusion order demo was the biggest application I can find to run compile/run times with. The compile times are not too far apart across all hardware setups.
This is where the numbers start to puzzle me. Embedded weblogic run times for the app seemed to be very inconsistent and slow when running under ubuntu. The difference in times varied between +- 40seconds! Also, surprisingly the win7 i7 was expected to follow macbookpro but instead it was on the bottom along with our old linux setup.
slow wls on linux solved (somewhat)! Now it takes ~70 seconds to start the wls and bring up the FOD home page.