@MASTERSTHESIS{ 2017:1479422682, title = {Exploring atomicity on memory mapped files based on non-volatile memory file systems}, year = {2017}, url = "http://tede2.pucrs.br/tede2/handle/tede/7768", abstract = "Upcoming non-volatile memory technologies are a big promise in computer architecture and are expected to be powerful tools to address today’s issues regarding efficient data manipulation. They provide high performance and byte granularity while also having the distinct advantage of being persistent. However in order to explore these technologies to their full potential, existing systems and architecture must adapt to this new way of working with data and workaround the challenges that come with it. Existing work in the area already proposes methods to adapt existing architecture to NVM as well as innovative ways to employ these memories in future applications. However operating system support to such NVM-enabled solutions, although existent, still very limited. In this work, we present two variations of the existing mmap system call, designed to both explore NVM characteristics and provide user data consistency. Both are very simple solutions that allow users to control the persistence and define checkpoints to their files while using the common mapped file syntax. We have implemented and tested these methods over Linux using a NVM file system as our base. Our results show that these mechanisms can ensure file integrity in the presence of system failures while also providing a reasonable performance.", publisher = {Pontifícia Universidade Católica do Rio Grande do Sul}, scholl = {Programa de Pós-Graduação em Ciência da Computação}, note = {Escola Politécnica} }