Android的Linux内核Bionic库，Bionic库仅为200KB大小是GNU版本体积的一半，这意味着更高的效率和低内存占用，同时配合经过优化的Java VM Dalvik才可以保证高的性能。Bionic不支持一些特性比如宽字节对unicode，类似c++那样的异常处理-Android' s Linux kernel Bionic library, Bionic library is only 200KB size is half the volume of the GNU ver

Theory of Operation: A cog is launched which processes commands via the PUB routines. Points, lines, arcs, sprites, text, and polygons are rasterized into a specified stretch of memory which serves as a generic bitmap buffer.

reports physical memory usage, taking shared memory pages into account. Unshared memory is reported as the USS (Unique Set Size). Shared memory is divided evenly among the processes sharing that memory. The unshared memory (USS) plus a process