In computing, resident set size (RSS) is the portion of memory (measured in kilobytes) occupied by a process that is held in main memory (RAM). The rest of the occupied memory exists in the swap space or file system, either because some parts of the occupied memory were paged out, or because some parts of the executable were never loaded.
See also
- Proportional set size (PSS)
- Unique set size (USS)
- Demand paging
- Virtual memory
- Working set
- Working set size
References
- "Understanding Resident Set Size and the RSS problem on modern Unixes". utcc.utoronto.ca. February 3, 2012. Retrieved January 22, 2015.
External links
- Simple resident set size limits, LWN.net, August 10, 2004, by Jonathan Corbet
- ELC: How much memory are applications really using?, LWN.net, April 18, 2007, by Jonathan Corbet
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