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Fork (system call)

In computing, fork is an operation whereby a process creates a copy of itself. It is usually implemented as a C standard library wrapper to the fork, clone, or other system calls of the kernel. For many years, fork was the primary method of process creation on Unix and Unix-like operating systems, and it remains a required interface for compliance with…

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Technical

Variants

Forking in other operating systems

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Map overview Semantic statistics

Fork (system call)

Nodes67
Edges66
Triples9
Avg. degree1.97
Density0.029851
Components1

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Important terminology

fork process child system vfork parent call exec operating posix processes memory systems new execution program copy used implemented unix

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
header inclusions has been omittedinstance ofBoilerplate code0.80text
uClinux omit forkinstance ofit was later reinstated in the NetBSD operating system for performance reasons.Some embedded operating systems0.80text
only implement vforkinstance ofit was later reinstated in the NetBSD operating system for performance reasons.Some embedded operating systems0.80text
because they need to operate on devices where copy-on-write is impossible to implement due to lack of a memory management unit.RforkThe Plan 9 operating systeminstance ofit was later reinstated in the NetBSD operating system for performance reasons.Some embedded operating systems0.80text
created by the designers of Unixinstance ofit was later reinstated in the NetBSD operating system for performance reasons.Some embedded operating systems0.80text
includes fork as a variant of a new function calledinstance ofit was later reinstated in the NetBSD operating system for performance reasons.Some embedded operating systems0.80text
pthreadsinstance ofthough application programmers will typically use a higher-level interface0.80text
implemented on top of cloneinstance ofthough application programmers will typically use a higher-level interface0.80text
because they need to operate on devices where copy-on-write is impossible to implement due to lack of a memory management unitinstance ofit was later reinstated in the NetBSD operating system for performance reasons.Some embedded operating systems0.80text

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