this is what i heard about multi core support on android
According to Intel, Android’s thread scheduler just isn’t up to the task of getting the best performance out of the new quad-core (and to a lesser extent, dual-core) chips we’re seeing. Since the manufacturers of those components should be the ones capable of getting the highest performance out of them, Intel thinks the companies behind these chips should be the ones contributing the necessary improvements to the Android source tree, but “they just haven’t bothered to do it.”
Sure, some of this might just be a backhanded way for Intel to congratulate itself on its own work at improving thread performance, but we agree that someone needs to be taking a closer look at Android multi-core support. According to the company, some of the phones from other manufacturers end up performing worse when multiple cores are enabled. It doesn’t name names, but if that’s true at all, it seems like a damning assessment of Android’s current relationship with multi-core chips.