An I/O System for Mach 3.0
نویسندگان
چکیده
The Mach 3.0 I/O system represents a radical departure from its predecessor { Mach 2.5, which relied on the BSD Unix model of device management. The I/O interface in Mach 3.0 supports device drivers that are largely device-independent, implemented at user-level, and location-independent. Our approach to device management signiicantly reduces the size of the kernel's machine-dependent code, enables us to reduce the length of the I/O path, and permits us to transparently manage remote devices on non-shared memory multiprocessor architectures such as the Hypercube. This paper describes the structure and performance of Mach's I/O system.
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An I / O System for Mach 3
The Mach 3.0 I/O system represents a radical departure from its predecessor { Mach 2.5, which relied on the BSD Unix model of device management. The I/O interface in Mach 3.0 supports device drivers that are largely device-independent, implemented at user-level, and location-independent. Our approach to device management signiicantly reduces the size of the kernel's machine-dependent code, enab...
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