[R] Fwd: Re: CPU usage on Windows

[Richard M. Heiberger]

I can't imagine using Windows without Emacs.
In particular, the Windows ports of Emacs are very aware
of the operating system and usually make the right assumptions.

The type of behavior you are noticing can probably be cured by typing C-g in the
*R* buffer in emacs.  The most likely cause is that the R process in Emacs
is waiting for the plot to finish and is querying the plotting device.
Most of that excess CPU usage is from the query loop.  The C-g tells Emacs and R
to stop waiting.

If C-g doesn't stop the 100% CPU utilization, then it is most likely something
about the specific plot you are drawing.  We will need to see a reproducible
example to say more.

Rich

---- Original message ----
>Date: Fri, 16 Mar 2007 19:37:14 -0400
>From: Duncan Murdoch <murdoch at stats.uwo.ca>  
>Subject: Re: [R] CPU usage on Windows  
>To: Jonathan Wang <jontwang at gmail.com>
>Cc: r-help at stat.math.ethz.ch
>
>On 3/16/2007 6:56 PM, Jonathan Wang wrote:
>> I'm using R with emacs & ESS on Windows. When I create a plot, sometimes R
>> will seem to get stuck in a busy loop, i.e. it will use 100% of my CPU.
>> 
>> Has anybody heard of this behavior, or, better yet, have a solution?
>
>I've heard of a number of problems with Emacs on Windows.  I wouldn't 
>recommend using it.  As far as I can see, it makes a number of 
>assumptions about the OS that just aren't true about Windows.