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KERNEL-LEVEL THREADS (KLT)
In this level every thread management is done by kernel .No thread library except an API system calls to the kernel thread facility exists. The kernel maintains context information for the threads and the process, switching among threads requires the kernel Scheduling is performed on a thread basis.
what is the function of operation management?
What is meant by arm-stickiness? If one or a few processes have a high access rate to data on single track of a storage disk, then they might be monopolizing the device by repe
What are the objectives and functions of operating system? Functions of operating systems 1. It allocates the resources and acts as a supervisor. 2. It hides th
A file system depends on data structures about the files, beside the file structure. The former is named metadata-data that defines data. Each file is accumulated with an inode, wh
The idea of reference counting is to maintain, for every object, the total number of references to that object, i.e. the number of "incoming" pointers. Whenever the number of refer
Garbage collectors trade space for time. If we collect all the time (which requires a lot of processing time), the GC allocator will use the least memory possible. On the other han
Enhanced second-chance algorithm. When we increase the second-chance algorithm by considering both the reference bit and the modify bit as an order pair. We have the following
Clocks in distributed systems : a. Why are clocks difficult to synchronize in distributed systems? b. What features in a system assume that the clocks are (reasonably) synchr
Banker's Algorithm In this analogy Customers ≡ processes Units ≡ resources, say, tape drive Ba
LINUX VS WINDOWS I/O MANAGEMENT
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