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44 relations: Application programming interface, Buddy memory allocation, C (programming language), Cache (computing), Cache replacement policies, Central processing unit, Codebase, Console application, CPU cache, Crypto API (Linux), Data compression, Device file, Embedded system, Flash memory, GNU General Public License, Hardware acceleration, IBM, Input/output, Kernel.org, Lempel–Ziv–Oberhumer, Linux, Linux kernel, Linux startup process, Loadable kernel module, LWN.net, Memory management, Memory pool, Netbook, Oracle Corporation, Out of memory, Page (computer memory), Page fault, Paging, Phoronix, Random-access memory, Solid-state drive, Solid-state storage, Sysfs, User space, Util-linux, Virtual memory, Virtual memory compression, Write amplification, Zram.
Application programming interface
In computer programming, an application programming interface (API) is a set of subroutine definitions, protocols, and tools for building software.
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Buddy memory allocation
The buddy memory allocation technique is a memory allocation algorithm that divides memory into partitions to try to satisfy a memory request as suitably as possible.
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C (programming language)
C (as in the letter ''c'') is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations.
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Cache (computing)
In computing, a cache, is a hardware or software component that stores data so future requests for that data can be served faster; the data stored in a cache might be the result of an earlier computation, or the duplicate of data stored elsewhere.
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Cache replacement policies
In computing, cache algorithms (also frequently called cache replacement algorithms or cache replacement policies) are optimizing instructionsor algorithmsthat a computer program or a hardware-maintained structure can follow in order to manage a cache of information stored on the computer.
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Central processing unit
A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.
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Codebase
In software development, a codebase (or code base) refers to a whole collection of source code that is used to build a particular software system, application, or software component.
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Console application
A console application is a computer program designed to be used via a text-only computer interface, such as a text terminal, the command line interface of some operating systems (Unix, DOS, etc.) or the text-based interface included with most Graphical User Interface (GUI) operating systems, such as the Win32 console in Microsoft Windows, the Terminal in Mac OS X, and xterm in Unix.
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CPU cache
A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory.
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Crypto API (Linux)
Crypto API is a cryptography framework in the Linux kernel, for various parts of the kernel that deal with cryptography, such as IPsec and dm-crypt.
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Data compression
In signal processing, data compression, source coding, or bit-rate reduction involves encoding information using fewer bits than the original representation.
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Device file
In Unix-like operating systems, a device file or special file is an interface to a device driver that appears in a file system as if it were an ordinary file.
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Embedded system
An embedded system is a computer system with a dedicated function within a larger mechanical or electrical system, often with real-time computing constraints.
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Flash memory
Flash memory is an electronic (solid-state) non-volatile computer storage medium that can be electrically erased and reprogrammed.
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GNU General Public License
The GNU General Public License (GNU GPL or GPL) is a widely used free software license, which guarantees end users the freedom to run, study, share and modify the software.
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Hardware acceleration
In computing, hardware acceleration is the use of computer hardware to perform some functions more efficiently than is possible in software running on a more general-purpose CPU.
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IBM
The International Business Machines Corporation (IBM) is an American multinational technology company headquartered in Armonk, New York, United States, with operations in over 170 countries.
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Input/output
In computing, input/output or I/O (or, informally, io or IO) is the communication between an information processing system, such as a computer, and the outside world, possibly a human or another information processing system.
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Kernel.org
kernel.org is the main distribution point of source code for the Linux kernel, which is the base of the Linux operating system.
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Lempel–Ziv–Oberhumer
Lempel–Ziv–Oberhumer (LZO) is a lossless data compression algorithm that is focused on decompression speed.
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Linux
Linux is a family of free and open-source software operating systems built around the Linux kernel.
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Linux kernel
The Linux kernel is an open-source monolithic Unix-like computer operating system kernel.
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Linux startup process
Linux startup process is the multi-stage initialization process performed during booting a Linux installation.
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Loadable kernel module
In computing, a loadable kernel module (LKM) is an object file that contains code to extend the running kernel, or so-called base kernel, of an operating system.
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LWN.net
LWN.net is a computing webzine with an emphasis on free software and software for Linux and other Unix-like operating systems.
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Memory management
Memory management is a form of resource management applied to computer memory.
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Memory pool
Memory pools, also called fixed-size blocks allocation, is the use of pools for memory management that allows dynamic memory allocation comparable to malloc or C++'s operator new.
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Netbook
Netbook is a generic name given to a category of small, lightweight, legacy-free, and inexpensive laptop computers that were introduced in 2007.
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Oracle Corporation
Oracle Corporation is an American multinational computer technology corporation, headquartered in Redwood Shores, California.
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Out of memory
Out of memory (OOM) is an often undesired state of computer operation where no additional memory can be allocated for use by programs or the operating system.
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Page (computer memory)
A page, memory page, or virtual page is a fixed-length contiguous block of virtual memory, described by a single entry in the page table.
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Page fault
A page fault (sometimes called #PF, PF or hard fault) is a type of exception raised by computer hardware when a running program accesses a memory page that is not currently mapped by the memory management unit (MMU) into the virtual address space of a process.
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Paging
In computer operating systems, paging is a memory management scheme by which a computer stores and retrieves data from secondary storage for use in main memory.
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Phoronix
Phoronix is a technology website that offers insights regarding the development of the Linux kernel, product reviews, interviews, and news regarding free and open-source software by monitoring the Linux kernel mailing list or interviews.
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Random-access memory
Random-access memory (RAM) is a form of computer data storage that stores data and machine code currently being used.
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Solid-state drive
A solid-state drive (SSD) is a solid-state storage device that uses integrated circuit assemblies as memory to store data persistently.
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Solid-state storage
Solid-state storage (sometimes abbreviated as SSS) is a type of non-volatile computer storage that stores and retrieves digital information using only electronic circuits, without any involvement of moving mechanical parts.
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Sysfs
sysfs is a pseudo file system provided by the Linux kernel that exports information about various kernel subsystems, hardware devices, and associated device drivers from the kernel's device model to user space through virtual files.
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User space
A modern computer operating system usually segregates virtual memory into kernel space and user space.
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Util-linux
util-linux is a standard package distributed by the Linux Kernel Organization for use as part of the Linux operating system.
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Virtual memory
In computing, virtual memory (also virtual storage) is a memory management technique that provides an "idealized abstraction of the storage resources that are actually available on a given machine" which "creates the illusion to users of a very large (main) memory." The computer's operating system, using a combination of hardware and software, maps memory addresses used by a program, called virtual addresses, into physical addresses in computer memory.
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Virtual memory compression
Virtual memory compression (also referred to as RAM compression and memory compression) is a memory management technique that utilizes data compression to reduce the size or number of paging requests to and from the auxiliary storage.
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Write amplification
Write amplification (WA) is an undesirable phenomenon associated with flash memory and solid-state drives (SSDs) where the actual amount of information physically written to the storage media is a multiple of the logical amount intended to be written.
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Zram
zram, formerly called compcache, is a Linux kernel module for creating a compressed block device in RAM, i.e. a RAM disk, but with on-the-fly "disk" compression.
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References
[1] https://en.wikipedia.org/wiki/Zswap
