R devel - Feb 2008 - forcing gc() to do its work

Hi,

At some points of my computations I want gc() to try really hard and collect as
many objects as possible even though the triggering limits are not hit. Will it
help if I temporarily set the limits to some small values, call gc() and then
reset them back to their original values? What variables exactly need to be set?
Does anyone have a prototype of such function?

I tried to read the R help, e.g. Memory and memory.limits(), but I am not sure I
understand how this applies to my case.

Thanks,
Vadim

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On 16/02/2008 7:56 PM, Vadim Organovich wrote:
> Hi,
> 
> At some points of my computations I want gc() to try really hard and
collect as many objects as possible even though the triggering limits are not
hit. Will it help if I temporarily set the limits to some small values, call
gc() and then reset them back to their original values? What variables exactly
need to be set?  Does anyone have a prototype of such function?
> 
> I tried to read the R help, e.g. Memory and memory.limits(), but I am not
sure I understand how this applies to my case.
See the R Internals manual, or the comments in memory.c.  Calling gc() 
makes it try as hard as it can (a level 2 collection).  You can't make 
it try harder.

Duncan Murdoch