R help - May 2003 - Memory leakage?

Hi, all:

I'm using R 1.7.0 on WinXP under SDI mode.  However, very often after I 
closed all R windows, my CPU usage was still 100%.  By checking the task 
manager, I found there are one or several "Rgui.exe" still running and
took
all the CPU.  I had to close them one by one manually.  This happened to me 
with R 1.6.1, R 1.6.2 also and also on Win2K.  Rememeber there was a
"memory
leakage" problem with the early release of 1.6.2.  Is this what I'm 
exprencing here?  Or this is due to I'm runing R under SDI mode, b/c my 
colleague hasn't found the problem with his R 1.7.0 or other versions which 
are runing under MDI mode.  Help............

...Tao

I always use Rgui in SDI mode (under XP) and it always shuts down
completely for me.

There was only one release of R 1.6.2.  This not what is meant by `memory
leakage': that is when an application allocates memory and does not free
it: it goes away when the application is exit-ed.

I believe the problem is with your own computer (or how you use it,
including other software you may have installed): have you tried
re-installing Windows?

On Sat, 3 May 2003, Tao Shi wrote:
> I'm using R 1.7.0 on WinXP under SDI mode.  However, very often after I
> closed all R windows, my CPU usage was still 100%.  By checking the task 
> manager, I found there are one or several "Rgui.exe" still
running and took
> all the CPU.  I had to close them one by one manually.  This happened to me
> with R 1.6.1, R 1.6.2 also and also on Win2K.  Rememeber there was a
"memory
> leakage" problem with the early release of 1.6.2.  Is this what
I'm
> exprencing here?  Or this is due to I'm runing R under SDI mode, b/c my
> colleague hasn't found the problem with his R 1.7.0 or other versions
which
> are runing under MDI mode.  Help............
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

Dear Prof. Ripley:

Thank you for your suggestions!

I haven't tried re-installing windows yet, because it seems to be a big task
for me and also I kind of doubt that the problem is due to my own 
computer(s), because the same problem happens to 3 different computers: one 
Dell desktop in school runing Win2K and R 1.6.1, my Dell laptop runing Win 
XP Professional Edition and R 1.7.0 and my new Dell desktop at home (just 
bought less than a month and only a few basic softwares were installed) 
runing Win XP Home Edition and R1.7.0.  (may be they're all from Dell :-)) 
I'm still looking for the pattern of when this happens, but so far, it seems
to be random.

...Tao





Prof Brian Ripley <ripley at stats.ox.ac.uk> wrote:Date: Sat, 3 May 2003 
19:56:16 +0100 (BST)
From: Prof Brian Ripley
To: tshi at itsa.ucsf.edu
CC: r-help at stat.math.ethz.ch
Subject: Re: [R] Memory leakage?

I always use Rgui in SDI mode (under XP) and it always shuts down
completely for me.

There was only one release of R 1.6.2. This not what is meant by `memory
leakage': that is when an application allocates memory and does not free
it: it goes away when the application is exit-ed.

I believe the problem is with your own computer (or how you use it,
including other software you may have installed): have you tried
re-installing Windows?

On Sat, 3 May 2003, Tao Shi wrote:

 > I'm using R 1.7.0 on WinXP under SDI mode. However, very often after I
 > closed all R windows, my CPU usage was still 100%. By checking the task
 > manager, I found there are one or several "Rgui.exe" still
running and
took
 > all the CPU. I had to close them one by one manually. This happened to me
 > with R 1.6.1, R 1.6.2 also and also on Win2K. Rememeber there was a 
"memory
 > leakage" problem with the early release of 1.6.2. Is this what
I'm
 > exprencing here? Or this is due to I'm runing R under SDI mode, b/c my
 > colleague hasn't found the problem with his R 1.7.0 or other versions 
which
 > are runing under MDI mode. Help............

--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595