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Define the Server Communications Module or SCM
The Server Communications Module (SCM) performs many necessary functions. The SCM responsible for establishing, maintaining, and destroying connections, as well as providing interfaces to sent and receive data on those connections.
This module is responsible for calling the Worker Dispatcher for thread execution, as well as providing interfaces to the Executor for sending and receiving network transmissions. The SCM should also register and maintain communication data for each client.
Compare user threads and kernel threads. User threads:- User threads are supported above the kernel and are executed by a thread library at the user level. Thread creation
Suppose we want to program a Web server; we could easily do so without using concurrency, as follows: while(true) wait connection read from socket and parse url look up url cont
Show the search tree generated by Hill-Climbing search (text figure 4.2, page 122; or Local Search lecture, slide 6) for each of the two heuristics (a) and (b) applied to the follo
Explian Integrating a Request/Response Mechanism Traditional application developers will need to develop a mechanism for communication between requesting (client) and respondin
Question : a) Consider table 1.0 below, assume the processes arrived in the order P 1 , P 2 , P 3 , P 4 at time shown and need the indicated burst time (both in milliseconds)
We have talked about blocking locks, which voluntarily yield, and spinlocks, which just spin until they acquire the lock. At ?rst, it seems like spinlocks are verywasteful, and tha
What is the benefits OS co-operating process? Information sharing. Computation speeds up. Modularity. Convenience.
Question: (a) Explain the similarities and differences between two different threads running in the same process and two independent processes. When would you want to use two t
Q. How does DMA raise system concurrency? How does it make difficult hardware design? Answer: DMA increases system concurrency by allowing the CPU to perform tasks while the
is there any difference between the trap and interrupt??
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