[R] (no subject)

saverio vicario saverio.vicario at yale.edu
Wed Jan 12 16:29:09 CET 2005


Dear help desk and R community,
I have a problem on how R2.0 handle the RAM, maybe a bug
In fact I used R1.9 since  january 2004 with large data set using a 
macosx G5 with 1G of ram without problem .  Then I passed to 2.0 and 
I found myself short in  ram using virtual memory.  I tried to use 
the program from terminal windows to avoid the GUI but it was the 
same.  The annoying part  is that even if I cancel big object from 
the workspace the RAM consumption do not decrease (looking at the 
percentage of usage in ps or the actual value in "activity monitor"). 
Only after a long time (1/2 hour ) the consumption of RAM decreased 
somewhat. When I use the workspace browser on the GUI and I use 
"refresh" the consumption of RAM fluctuate each time  both decreasing 
and incresing even if the workspace do not change. For example I can 
pass from using 270mb of memory to 430mb (or the contrary) simply 
pushing several time refresh.  The value is stable once I do not push 
refresh anymore
thanks
saverio




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