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Debian, la propuesta Vancouver. | 18 comentarios (18 temáticos, editoriales, 0 ocultos)

ejemplo (none / 0) (#16)
por neko a las Tue Mar 22nd, 2005 at 02:49:38 PM CET
(Información Usuario)

como ejemplo de la filosofía netBSD puede valer esto:

Well designed
Probably the primary goal of the NetBSD project is emphasizing correct design and well written code. One example is the implementation of a machine independent bus infrastructure, which enables a single driver for a device (such as an Ethernet or SCSI interface) to be shared across different busses (such as PCI, EISA, Turbochannel), and across different platforms (alpha, pmax, i386, etc), rather than the traditional approach of writing and maintaining many different versions of the driver, each with their own tweaks. In NetBSD, the `tweaks' are in small 'glue' functions that allow improvements to the core driver to benefit all ports.

This also means that, in many cases, a new port is as simple as implementing the machine specific code to access the machine independent bus infrastructure to utilize drivers that have already been written.

Some systems seem to have the philosophy of "If it works, it's right". In that light NetBSD could be described as "It doesn't work unless it's right".

Fast
Microoptimizations can play a part in any system, but design is even more important. Rewriting a routine to speed it up by 80% may sound impressive, but that routine may have only been using 5% of the CPU time. Looking at the larger picture and saving 10% overall by redesigning the way an operation is carried out gives over double the benefit. There is room for both in NetBSD, but we prefer getting a design right to tweaking a poor implementation.

[ Padre ]

Debian, la propuesta Vancouver. | 18 comentarios (18 temáticos, editoriales, 0 ocultos)

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