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what is bssblock started by symbola data showing at the machine level that has initial values when a program begins and tells about how much space
what is the window of the working set of a process the window of the working set of a method is the total number in which the method had referred the
what is the working set of a processthe set of pages that are referred by the method in the last n references where n is called the window of the
what is the principle of localityits the nature of the processes that they refer only to the small subset of the total data space of the processie
what are the criteria for choosing a process for swapping into memory from the swap devicethe resident time of the processes in the change device the
what are the requirements for a swapper to work the swapper works on the highest scheduling priority firstly it will look for any sleeping method if
what is expansion swapat the time when any process needs more memory than it is currently allocated the kernel performs expansion swap to do this
what is fork swapfork is a system call to make a child process when the parent process calls fork system call the child process is formed and if
what are the entities that are swapped out of the main memory while swapping the process out of the main memoryall memory space occupied by the
what do you mean by u-area user area or u-blockthis having the private data that is manipulated only by the kernelthis is local to the process ie
is the process before and after the swap are the same give reasonprocess before swapping is residing in the primary memory in its original form the
engineering applicationsa number of the engineering applications are1 simulations of artificial ecosystems 2 airflow circulation over aircraft
what are the events done by the kernel after a process is being swapped out from the main memorywhen kernel changes the process out of the primary
what is a region a region is a continuous area of a processs address space like text data and stackthe kernel in a region table that is local to the
what is a mapa map is an array which having the addresses of the free space in the swap device that are allocatable resources and the number of the
what is major difference between the historic unix and the new bsd release of unix system v in terms of memory managementhistoric unix uses swapping
what is the difference between swapping and pagingswapping entire process is moved from the swap device to the major memory for implementation
what is a shella shell is an interactive user interface to an operating system services that permits an user to enter commands as character strings
discuss the mount and unmount system callsthe privileged mount system call is used to join a file system to a directory of another file system the
how do you create special files like named pipes and device filesthe system call method forms special files in the following sequencekernel assigns
what is a fifofifo is otherwise known as named pipes fifo first-in-first-out is a particular file which is said to be data transient once data is
what is inodeall unix files have its description kept in a structure called inode the inode have info about the file-size its location time of last
how are devices represented in unixall devices are shown by files called special files that are located in dev directory therefore device files and
scientific applicationsimage processingmajor of concurrent processing applications from science and other academic disciplines are mostly have based
applications of parallel processingparallel computing is an development of sequential computing which tries to emulate what has always been the