Os9

9. Linking and Sharing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Single-Copy Sharing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Linking and Sharing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Figure 9-1

Sharing without Virtual Memory ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sharing without Virtual Memory ,[object Object],[object Object],[object Object],[object Object],Figure 9-2

Sharing in Paging Systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Figure 9-3

Dynamic Linking via Transfer Vector ,[object Object],[object Object],[object Object],Figure 9-4

Sharing in Segmented Systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Unrestricted Dynamic Linking/Sharing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Dynamic Linking/Sharing Figure 9-5a: Before Figure 9-5b: After Before and After External Reference is Executed

Distributed Shared Memory ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Unstructured DSM ,[object Object],[object Object],Figure 9-6 ,[object Object],[object Object]

Structured DSM ,[object Object],[object Object],[object Object],[object Object],Figure 9-7

Implementing Unstructured DSM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Implementing Unstructured DSM ,[object Object],[object Object],[object Object],[object Object],[object Object],Figure 9-9

Implementing Unstructured DSM ,[object Object],[object Object],Figure 9-11 ,[object Object],[object Object]

Implementing Unstructured DSM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Implementing Structured DSM ,[object Object],[object Object],[object Object],Figure 9-12

Implementing Structured DSM ,[object Object],[object Object],Figure 9-13 – A waste if p2 never looks at x .

Implementing Structured DSM ,[object Object],[object Object],Figure 9-14 There is also a (confusingly named?) “lazy release” which imports all shared variables before entering CS

Object-Based DSM ,[object Object],[object Object],[object Object]

Os9

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Os9