CPU Optimization Architect

About Us Founded in 2012, ByteDance's mission is to inspire creativity and enrich life. With a suite of more than a dozen products, including TikTok, Helo, and Resso, as well as platforms specific to the China market, including Toutiao, Douyin, and Xigua, ByteDance has made it easier and more fun for people to connect with, consume, and create content. Why Join Us Creation is the core of ByteDance's purpose. Our products are built to help imaginations thrive. This is doubly true of the teams that make our innovations possible. Together, we inspire creativity and enrich life - a mission we aim towards achieving every day. To us, every challenge, no matter how ambiguous, is an opportunity; to learn, to innovate, and to grow as one team. Status quo? Never. Courage? Always. At ByteDance, we create together and grow together. That's how we drive impact - for ourselves, our company, and the users we serve. Join us. About the Team The technology middle platform team is dedicated to exploring fundamental technologies and products related to emerging and innovative technology fields. Job Responsibilities: - Design and implement optimization solutions for specific scenarios to improve CPU execution efficiency. - Analyze and evaluate the performance of existing CPU scheduling algorithms, find optimization directions, set optimization goals, and develop optimization plans. - Conduct in-depth research on CPU scheduling principles to find scheduling algorithms more suitable for interactive tasks and mobile devices. - Develop measurement methods for CPU scheduling and execution efficiency, and collaborate with the testing team to implement a degradation prevention monitoring solution. - Participate in system performance testing and tuning to ensure the optimization effects meet expectations. - Track and research the latest industry developments in scheduling and CPU technologies, and develop and implement appropriate technical solutions. - Bachelor’s degree or higher in Computer Science or a related field. - Understanding of modern CPU architecture and implementation (such as cache systems, branch prediction, etc.), with the ability to optimize code at the CPU level. - Familiarity with operating system principles and a deep understanding of the kernel scheduler’s working mechanism. - Knowledge of one or more kernel CPU schedulers (such as CFS, BFS, FIFO, etc.) implementation, and the principles and implementation of governors. - Understanding of different scheduling algorithms' applicable scenarios and potential problems, with experience in optimizing shortcomings of CFS, FIFO, etc. - Good analytical and problem-solving skills, capable of quickly locating and resolving performance issues. - Excellent communication, and team coordination skills. ByteDance is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At ByteDance, our mission is to inspire creativity and enrich life. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too. ByteDance Inc. is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at https://shorturl.at/cdpT2 #LI-SY11