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A system with two dual-core processors has four processors available for scheduling. A CPU-intensive application is running on this system. All input is performed at program start-up, when a single file must be opened. Similarly, all output is performed just before the program terminates, when the program results must be written to a single file. Between startup and termination, the program is entirely CPUbound. Your task is to improve the performance of this application by multithreading it. The application runs on a system that uses the one-to-one threading model (each user thread maps to a kernel thread).
Suppose an operating system maps user-level threads to the kernel using the many-to-many model and the mapping is done through LWPs.
The answer describes the requirement for routers to support both IPv4 and IPv6 protocol stacks and describes the several types of connections a dual stack router can support, and why such connections are necessary.
A 4480 octet datagram is to be transmitted and requires to be fragmented because it will pass through an Ethernet with a maximum payload of 1500 octets.
Compute Average Memory Access Time under a variety of memory system configurations and workload assumptions
Slim reader-writer locks favor neither readers nor writers, nor are waiting threads ordered in FIFO queue. Describe benefits of providing such a synchronization tool.
Given a 4-way set associative cache unit with a 6-bit offset and a 12-bit index for a 32-bit address space with a LRU write-back policy, determine the nominal and actual size of the cache unit.
IT administrators in small corporations must often execute various functions at same time like network administrator, database administrator, user consultant and others.
Construct a table for consumer. The manager tells me that this table needs to track the following data: all consumers' social security number, first and last name, address, city,
The designer starts with a high level description of functions that are to be implemented and builds lower level explanations of how each module will be organized and related to other modules.
A concurrent program with 2-procedure, p and q, defined as follows, A,B,C,D, and E are arbitrary atomic statements. Suppose that the main program does a parbegin of the two procedure.
There are various ways to debug a program, perhaps most elementary is using a printf() statement to show important pieces of data regarding the program execution point,
Q/ Describe the Q/ Describe the relative merits of optimistic versus conservative concurrency control under different rates of contention among updates. under different rates of contention among updates.
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