What is a /proc File System? : The /proc file system isn't a file system in the standard sense. Rather, the /proc file system is an interface to the address space of running processes. With /proc, you can use standard UNIX system calls (e.g., open(), read(), write(), and ioctl()) to query or manipulate the processes' address space. In fact, the Solaris ps(1) command uses /proc to determine the ...

The changing landscape of high performance computing (HPC) hardware and applications poses a constant challenge to operating system architects. In this paper, we assess operating system evolution on the basis of several key factors related to system call functionality. Results are presented for Linux and Linux-like lightweight kernels. Comparisons are made with several other operating systems e...