gc(verbose = .Options$verbose) gcinfo(verbose)
verbose
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logical; if TRUE, the garbage collection prints
statistics about cons cells [in Bytes] and the vector heap [in KBytes].
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gc causes a garbage collection to take place.
This usually takes place automagically without user intervention.
gc returns a 2*2 matrix with rows "Ncells" (cons
cells) and "Vcells" (vector cells, 8 bytes each),
and columns "free" and "total".
The associated function gcinfo sets a flag so that
automatic collection is either silent (verbose=FALSE) or
prints memory use statistics (verbose=TRUE).
Memory on R's memory management and
gctorture if you are an R hacker.gc() #- do it now gcinfo(TRUE) #-- in the future, show when you do it x <- integer(0); for(i in 1:18) x _ c(x,i,x) gcinfo(verbose = FALSE)#-- don't show it anymore ( rgc <- gc(TRUE) ) (100*rgc[,"free"])%/% rgc[,"total"] # the percentages rgc[2,"free"]/ (1024 / 8) # free vector heap in K bytes