In computing, mmap(2) is a POSIX-compliant Unix system call that maps files or devices into memory. It is a method of memory-mapped file I/O. It implements demand paging because file contents are not immediately read from disk and initially use no physical RAM at all.

The function mmap(), [14] which creates a mapping of a file given a file descriptor, starting location in the file, and a length, is part of the POSIX specification, so the wide variety of POSIX-compliant systems, such as UNIX, Linux, Mac OS X [15] or OpenVMS, support a common mechanism for memory

The name MAMP is an acronym that stems from the names of the components of the system: [1] macOS (the operating system); Apache (the web server); MySQL or MariaDB (the database management system); and PHP, Perl, or Python (programming languages used for web development).The name is derived from LAMP, a similar stack of all open-source software …

When /dev/zero is memory-mapped, e.g., with mmap, to the virtual address space, it is equivalent to using anonymous memory; i.e. memory not connected to any file.

Linux filesystems call thp_get_unmapped_area to respond to a file-backed mmap. With a change in 5.18, files greater than 2 MiB are made to return 2 MiB-aligned addresses, so they can be potentially backed by huge pages .

The marketing metric audit protocol (MMAP) is the Marketing Accountability Standards Board's formal process for connecting marketing activities to the financial performance of the firm. The process includes the conceptual linking of marketing activities to intermediate marketing outcome metrics to cash flow drivers of the business, as well as ...

File descriptors for a single process, file table and inode table. Note that multiple file descriptors can refer to the same file table entry (e.g., as a result of the dup system call [3]: 104 ) and that multiple file table entries can in turn refer to the same inode (if it has been opened multiple times; the table is still simplified because it represents inodes by file names, even though an ...

Google Maps first started as a C++ program designed by two Danish brothers, Lars and Jens Eilstrup Rasmussen, and Noel Gordon and Stephen Ma, at the Sydney-based company Where 2 Technologies, which was founded in early 2003.The program was initially designed to be separately downloaded by users, but the company later pitched the idea for a purely Web …

Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere.It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east. Europe shares the landmass of Eurasia with Asia, and of Afro-Eurasia with both Africa and Asia. [9] [10] Europe is commonly …

Nmap (Network Mapper) is a network scanner created by Gordon Lyon (also known by his pseudonym Fyodor Vaskovich). [5] Nmap is used to discover hosts and services on a computer network by sending packets and analyzing the responses. [6]Nmap provides a number of features for probing computer networks, including host discovery and service and operating system …