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Synchronization serves two purposes: 1) to ensure safety for updates on shared data (e.g. to avoid races conditions), and 2) to coordinate and order actions taken by threads (e.g. handling threads which communicate intermediate results amongst one another).]
One of the most important aspects of parallel programs is that all their possible interleavings must be correct. One possible way to guarantee this is to simply put one lock in the beginning of each thread; however, it is also clear that we want to use as as few constraints as possible, in order to effectively exploit the available concurrency. Thus, the correct placement of locks is not always trivial. In general, locks provide safety and correctness, while condition variable provide ordering.
The term IPC (Inter-Process Communication) defines several paths by which different process executing on some operating system interact between each other.
Define spooling. A spool is a buffer that holds output for a device, like printer, that cannot accept interleaved data streams. When a request finishes printing, the spooling s
distinguish between dynamic and fixed partitioning
how the system call is work?
Sir i want formulas in Memory management starting from paging till the demang paging in a easy manner for solving problems in competitive exams
A friend has promised to log in at a particular time. However, he needs to be contacted as soon as he logs in. The shell script checks after every minute whether he has logged in o
Explain Belady's Anomaly? Also called FIFO anomaly. Usually, on enhancing the number of frames allocated to a process virtual memory, the process implementation is faster, beca
Q. Capability lists are typically kept within the address space of the user. How does the system make sure that the user cannot modify the contents of the list? Answer: An ap
advantage and dis advantage of threads
What is a path name? A pathname is the path from the root by all subdirectories to a specified file. In a two-level directory structure a user name and a file name explain a pa
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