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Disadvantage and Advantage of mutual-exclusion implementation with semaphores.
Disadvantage: Mutual-exclusion solutions specified by semaphores require busy waiting.
That is, even as a process is in its critical section, any other process which tries to enter its critical section should loop continuously in the entry code. Therefore, busy waiting wastes CPU cycles that several other process might capable to use productively.
Advantage: This kind of semaphore is also termed as spinlock as the process "spins" while waiting for lock. Spinlocks are helpful in multiprocessor systems as no context switch is needed when a process should wait on a lock. Therefore, when locks are expected to be held for short times, spinlocks are helpful.
Direct inward dialling is used as a feature in? Direct inward dialling is utilized as a feature in EPABX.
1. LINQ to Objects - Implements a LINQ query against a collection of objects 2. LINQ to XML - Implements an XPATH query against XML documents 3. LINQ to SQL - Implements LINQ
A computer system provides protection using the Bell-LaPadula policy. How would a virus spread if A) the virus were placed on the system at system low (the compartment that all o
The goal of computer architects is to design computers that are cheaper and more powerful than their predecessors. A cheaper computer has: Low hardware manufacturing cost.
draw a binary tree from its inorder and preorder traversal sequences given as follows: inorder: d b g e h a c n f preorder: a b d e g h c f n
Using defparam Parameter values can be changed in any module instance in the design with keyword defparam. Hierarchical name of the module instance can be used to override para
A design for the seven segment decoder is required. The decoder has four inputs which represent a number from 0 to 9 in binary and seven outputs which are connected to the seven
The commercially available 8-input multiplexer integrated circuit in the TTL family is ? Ans. In TTL, MUX integrated circuit is 74153.
Optimal Page Replacement Algorithm The optimal page replacement algorithm that as well known as OPT is an algorithm which works as follows: while a page needs to be swapped in,
Example of the horizon problem: It is also worth bearing in mind the horizon problem, however a game-playing agent cannot see much far satisfactory into the search space. Now
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