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On trendy working programs, it is feasible to mmap (pronounced “em-map”) a file to a area of Memory Wave Workshop. When this is completed, the file may be accessed similar to an array in this system. This is more efficient than read or write, as solely the areas of the file that a program really accesses are loaded. Accesses to not-yet-loaded components of the mmapped region are dealt with in the same method as swapped out pages. Since mmapped pages might be stored back to their file when bodily memory is low, it is possible to mmap recordsdata orders of magnitude bigger than each the bodily memory and swap area. The only limit is tackle area. The theoretical restrict is 4GB on a 32-bit machine - however, the actual restrict might be smaller since some areas will be reserved for other purposes. If the LFS interface is used the file measurement on 32-bit programs will not be limited to 2GB (offsets are signed which reduces the addressable space of 4GB by half)
Удаление вики-страницы 'Memory mapped I/O (the GNU c Library)' не может быть отменено. Продолжить?