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内容简介:
A book about modern operating systems. Topics are broken down into three major conceptual pieces: Virtualization, Concurrency, and Persistence. Includes all major components of modern systems including scheduling, virtual memory management, disk subsystems and I/O, file systems, and even a short introduction to distributed systems.
作者简介:
Intro
Virtualization
Concurrency
Persistence
Appendices
· · · · · · (收起)
原文摘录:
ASIDE : SOMETIMES LIFE ISN’T PERFECT
Even when you design a beautiful system, sometimes all the corner cases don’t work out exactly as you might like. Take the mkdir example above; one could redesign mkdir to have different semantics, thus making it idempotent (think about how you might do so); however, why bother? The NFS design philosophy covers most of the important cases, and overall makes the system design clean and simple with regards to failure. Thus, accepting that life isn’t perfect and still building the system is a sign of good engineering. Remember Ivan Sutherland’s old saying: “the perfect is the enemy of the good.” (查看原文)
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2012-11-04 21:08:37
—— 引自第12页
因此我们的页的大小为 1KB（256×4字节） (查看原文)
kksmq
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2020-05-21 19:43:40
—— 引自章节：20.3 多级页表 157