Memory usage in R during running a code

Question

I would like to check what is the top usage of memory during running a code in R. Does anyone know such a function?

The only thing I found, so far, is the function mem_change from pryr package, which checks memory change before and after running a code.

I work on Linux.

To analyse after code has run use Rprof or Rprofmem. If you are looking for real time memory use, I don't think there is anything in R. — James
– James, Commented Jun 12, 2015 at 10:06
memory.size(max=TRUE) returns pick usage during session. Start with fresh session, run your code and check this value. — Marek
– Marek, Commented Jun 12, 2015 at 15:43
Marek: memory.size and memory.limit are used to manage the total memory allocation on Windows. I should have mentioned that I work on Linux :) — potockan
– potockan, Commented Jun 13, 2015 at 10:14
There is also ulimit package on github, link to short vignette: krlmlr.github.io/ulimit/vignettes/ulimit.html — Pafnucy
– Pafnucy, Commented Jun 16, 2015 at 9:36

Nick Kennedy · Accepted Answer · 2015-06-13 18:21:18Z

4

gc() will tell you the maximum memory usage. So if you start a new R session, run your code and then use gc() you should find what you need. Alternatives include the profiling functions Rprof and Rprofmem as referenced in @James comment above.

answered Jun 13, 2015 at 18:21

Nick Kennedy

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