About the Author | Wu Zhangjin studied Computer Science and Technology at Lanzhou University and obtained his Master's degree in Distributed and Embedded System in 2010. He is a Linux user and developer since 2004 and he co-founded the Open Source Community of Lanzhou University in 2006. He is an active open source contributor; he launched the Linux-Loongson/Community Project in 2009 and uploaded more than 100 patches to the Linux mainline. He reactivated the Tiny-Linux kernel project in 2011. He also developed some other open source projects, such as VnStatSVG and TP4CELL. He worked for a Chinese Loongson CPU application company and a world-leading embedded system company and now works on Linux system optimization for a leading Chinese Android smartphone company. Currently, his main focus includes real-time systems, Linux RAS, power saving, system fastboot, system-size optimization, and kernel debugging and tracing. His private website is http://tinylab.org; it is mainly about embedded system research and development. The extra content related to this book project will also be discussed there.Cao Ziqiang is a Linux fan since 2004, and has more than eight years of experience in using the Linux operating system. He has extensive experience in video programs and network programs in C/C++ under Linux and has also majored in Linux kernel and device-driver development. In recent years, he has paid more attention to system stability and robustness, and worked for a smartphone company that uses Android as their main software platform. He is good at analyzing and resolving problems at the development phase using Linux tools such as toolbox, BusyBox, and some other open source projects of the Linux community. As a participant, he tested and fi xed bugs in the Google Samsung kernel community. This is his fi rst book as a co-author. He sincerely believes in the sharing of experience, which he has done with this book, and he will not stop sharing. |