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% File src/library/base/man/gc.Rd
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% File src/library/base/man/gc.Rd
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% Part of the R package, https://www.R-project.org
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% Part of the R package, https://www.R-project.org
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% Copyright 1995-2007 R Core Team
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% Copyright 1995-2019 R Core Team
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% Distributed under GPL 2 or later
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% Distributed under GPL 2 or later
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\name{gc}
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\name{gc}
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\title{Garbage Collection}
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\title{Garbage Collection}
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\usage{
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\usage{
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}
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}
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\details{
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\details{
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  A call of \code{gc} causes a garbage collection to take place.
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  A call of \code{gc} causes a garbage collection to take place.
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  This will also take place automatically without user intervention, and the
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  This will also take place automatically without user intervention, and the
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  primary purpose of calling \code{gc} is for the report on memory
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  primary purpose of calling \code{gc} is for the report on memory
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  usage. For an accurate report \code{full = TRUE} should be used.
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  usage.  For an accurate report \code{full = TRUE} should be used.
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  It can be useful to call \code{gc} after a large object
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  It can be useful to call \code{gc} after a large object
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  has been removed, as this may prompt \R to return memory to the
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  has been removed, as this may prompt \R to return memory to the
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  operating system.
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  operating system.
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  \R allocates space for vectors in multiples of 8 bytes: hence the
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  \R allocates space for vectors in multiples of 8 bytes: hence the
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  report of \code{"Vcells"}, a relict of an earlier allocator (that used
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  report of \code{"Vcells"}, a relic of an earlier allocator (that used
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  a vector heap).
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  a vector heap).
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  When \code{gcinfo(TRUE)} is in force, messages are sent to the message
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  When \code{gcinfo(TRUE)} is in force, messages are sent to the message
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  connection at each garbage collection of the form
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  connection at each garbage collection of the form
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\preformatted{    Garbage collection 12 = 10+0+2 (level 0) ...
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\preformatted{    Garbage collection 12 = 10+0+2 (level 0) ...