[ESS] Emacs taking over CPU

Vitalie Spinu spinuvit at gmail.com
Mon Sep 9 19:24:43 CEST 2013

Hi Frank, 

The problem probably arises because you (or eldoc) sends some code to
subprocess when it is busy. This should happen extremely rarely, and
only when you are using visible evaluation (ess-eval-visibly == t).

In any case C-g should always help.

The issue should be even less frequent with new ESS13.09.


 >> Rodney Sparapani <rsparapa at mcw.edu>
 >> on Mon, 9 Sep 2013 09:28:12 -0500 wrote:

 > On 09/07/2013 07:37 AM, Frank Harrell wrote:
 >> After a long interactive R session using the latest ESS on Ubuntu, Emacs
 >> gets extremely sluggish and starts to take more of 98% of the CPU. Below
 >> is my .emacs file if relevant.  Thanks for any pointers - Frank

 > Dear Frank:

 > Which version of ESS and emacs is this?  And, which OS?  I don't know
 > if this is an ESS or emacs issue.  There is a bug in GNU Emacs 24.1
 > and 24.2 which behaves exactly as you describe on non-Windows builds:
 > Bug #12463 http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12463

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