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Flow diagram. In computing, serialization (or serialisation, also referred to as pickling in Python) is the process of translating a data structure or object state into a format that can be stored (e.g. files in secondary storage devices, data buffers in primary storage devices) or transmitted (e.g. data streams over computer networks) and reconstructed later (possibly in a different computer ...
A memory-mapped file is a segment of virtual memory [1] that has been assigned a direct byte-for-byte correlation with some portion of a file or file-like resource. This resource is typically a file that is physically present on disk, but can also be a device, shared memory object, or other resource that an operating system can reference through a file descriptor.
The main difference between System V shared memory (shmem) and memory mapped I/O (mmap) is that System V shared memory is persistent: unless explicitly removed by a process, it is kept in memory and remains available until the system is shut down. mmap'd memory is not persistent between application executions (unless it is backed by a file).
This is a really specific topic of relevance to a small number of people using a particular programming language. Perhaps it would be best left to authors of Python-related websites and wikis. GBMorris 18:56, 30 January 2017 (UTC) It's certainly a more general topic, even under the term "pickling".
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The brk and sbrk calls dynamically change the amount of space allocated for the heap segment of the calling process. The change is made by resetting the program break of the process, which determines the maximum space that can be allocated.
Memory-mapped I/O is preferred in IA-32 and x86-64 based architectures because the instructions that perform port-based I/O are limited to one register: EAX, AX, and AL are the only registers that data can be moved into or out of, and either a byte-sized immediate value in the instruction or a value in register DX determines which port is the source or destination port of the transfer.
Pickle Rick, an episode of Rick and Morty; The Pickle, a 1993 film "The Pickle Song", an alternative title for "The Motorcycle Song" by Arlo Guthrie, appearing on Alice's Restaurant (1967) and The Best of Arlo Guthrie (1977), among others "Pickles", a SpongeBob SquarePants season 1 episode; Pickles (comic strip), a comic strip by Brian Crane