swap space
Học thuậtThân thiện
Definition
Noun: * Virtual memory storage area: "Swap space" refers to a dedicated section of a computer's storage drive (like a hard disk or SSD) that is reserved for use by the operating system's virtual memory system. It acts as an extension of the physical RAM (Random Access Memory).
Usage
"Swap space" is a technical term used in computing and system administration. It describes a reserved, non-volatile storage area used to temporarily hold data that is not actively being used by programs, freeing up physical RAM for active processes.
Examples
- The system administrator increased the swap space to improve performance when running memory-intensive applications.
- If your computer runs out of RAM, it will start using the swap space on the disk, which is much slower.
- A common rule of thumb is to allocate swap space equal to twice the amount of your physical RAM.
Advanced Usage
- "To page out to swap space": This phrase describes the specific action of the operating system moving inactive memory pages from RAM to the swap area on the disk.
- When the system is under heavy load, it begins to page out to swap space.
Variants and Related Words
- Swap file (n): A specific file on a filesystem configured to act as swap space. (Common in Windows and some Linux configurations).
- Swap partition (n): A dedicated, separate partition on a storage drive specifically created for swap space. (Common in Linux and Unix-like systems).
- Virtual memory (n): The general memory management technique that uses both RAM and disk storage (like swap space) to give the illusion of a larger memory capacity.
Synonyms
- Paging file (primarily in Microsoft Windows contexts)
- Swap area
Notes
- Accessing data in swap space is significantly slower than accessing data in RAM because it involves reading from or writing to a disk drive.
- The terms "swap space," "swap file," and "swap partition" are often used interchangeably in casual conversation, though they refer to different implementations of the same concept.
Noun
- the disk space that is set aside for virtual memory