Re: [R] Keeping memory usage low for a big script

From: Duncan Murdoch <murdoch_at_stats.uwo.ca>
Date: Thu 14 Jul 2005 - 23:57:27 EST

On 7/14/2005 9:46 AM, Ken Termiso wrote:
> Hi all,
>
> I've got a script that I run on several computers, some with much less ram
> than others, and I would like to try and keep the memory usage as low as
> possible. The script creates variables to store intermediate results of
> calculations, and then at the end writes a text file with the results of the
> calculations.
>
> Is a quick and dirty way to accomplish this to use rm() to delete objects no
> longer in use, and then run gc()? ...or is there a better way?

Using rm() is good. gc() will run automatically as needed; the main reason to run it yourself is just to make calculation timings more reproducible. It will also affect memory fragmentation, most likely beneficially, but not necessarily...

Duncan Murdoch



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