[R] R process size growing in time...

Michal Bojanowski bojaniss at poczta.onet.pl
Sun Oct 13 23:29:13 CEST 2002

Hello Laurent,

Sunday, October 13, 2002, 7:33:47 PM, you wrote:

LG> Dear all,

LG> I observed that the R process is growing in time (I was working with
LG> the same session for two days, and the size reached 300 Mb). Explicit
LG> calls to 'gc()' did show a trigger around 90 Mb but did not change
LG> the RSS (while I remembered that my linux was nicely behaving before
LG> and the process size was shrinking when R was freeing memory...). I
LG> ended up saving the session, ending it then starting it again (and
LG> the process size was around 90 Mb).

LG> I do not know whether this was caused by the recent changes in the
LG> garbage collection, or by possible leaks in the libraries/functions
LG> I have been using (mainly 'hclust' and 'cmdscale').

LG> Did anybody experienced something similar ?

Hello ---

I think I did notice something similar, while working with R ver. 1060 on Windows
98. I remember, that I was working on some graphs. I didn't perform any `heavy'
calculations, no large datasets. I was producing the graphs many times though
while working on details. I didn't run any applications other than R and a text
editor. After an hour or so of work I wanted to go to Desktop by pressing a
button "show desktop" by the "Start" button. I received something like "There
isn't enough memory to perform this operation". Everything was OK when I
restarted R.

I didn't know about the gc() function, so I don't have any `numbers'.

I thought it occured because of `instability' of Windows, but now, if it happens
on other systems as well Windows might not be the only problem.


Michal Bojanowski
Institute for Social Studies
University of Warsaw

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