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Copy-on-write

Copy-on-write (COW), also called implicit sharing or shadowing, is a resource-management technique used in programming to manage shared data efficiently. Instead of copying data right away when multiple programs use it, the same data is shared between programs until one tries to modify it. If no changes are made, no private copy is created, saving…

In computer storage, In software & In virtual memory management

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In computer storage

ZFSBtrfsReFSAPFSF2FS
15 related topics

In software

LibraryApplicationSystemStringC++ standard library
13 related topics

In virtual memory management

Operating systemsPhysical memoryProcessesFork() system callPage table
11 related topics

Overview

Resource-managementProgrammingResources
3 related topics

Topics to explore

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Overview

In virtual memory management

In software

In computer storage

Advanced semantic analysis

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Map overview Semantic statistics

Copy-on-write

Nodes47
Edges46
Triples28
Avg. degree1.96
Density0.042553
Components1

How this topic connects Entity context

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Copy-on-write

Top relations

related to In computer storage · 13
Copy-on-write → APFS, Bcachefs, Btrfs, COW, F2FS, However, In, Microsoft SQL Server, ReFS, Snapshots, This, When, ZFS
related to Examples · 5
Copy-on-write → For, In, PHP, The, This
related to In virtual memory management · 4
Copy-on-write → It, The, Typically, When
related to External links · 3
Copy-on-write → January, November, Retrieved

Important terminology Word statistics

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Important terminology

memory data cow new used copy also page file one technique shared references systems physical pages types original multiple use

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
mutexesinstance ofQt types can often be safely used by multiple threads without the need of locking mechanisms0.80text
Microsoft SQL Server.In traditional file systemsinstance ofas well as in logical volume management and database servers0.80text
modifying a file overwrites the original data blocks in placeinstance ofas well as in logical volume management and database servers0.80text
Copy-on-writerelated to ExamplesThe0.60section
Copy-on-writerelated to ExamplesIn0.60section
Copy-on-writerelated to ExamplesPHP0.60section
Copy-on-writerelated to ExamplesFor0.60section
Copy-on-writerelated to ExamplesThis0.60section
Copy-on-writerelated to External linksJanuary0.60section
Copy-on-writerelated to External linksRetrieved0.60section
Copy-on-writerelated to External linksNovember0.60section
Copy-on-writerelated to In computer storageCOW0.60section

Related concept clusters Concept neighborhoods

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    Min side: 3
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