ESS very slow on Win98

[Paul Y. Peng]

"A.J. Rossini" wrote:
> 
> >>>>> "CCB" == Charles C Berry <cberry at tajo.ucsd.edu> writes:
> 
>     CCB> Dear ESS users/developers;
> 
>     CCB> I have a Pentium III 128MB 700MHz Win98 notebook.
> 
>     CCB> I run R on it, and prefer to run under emacs and ESS.
> 
>     CCB> But some processes take an inordinate amount of time.
> 
>     CCB> Particularly vexing is the time required for dynamic
>     CCB> completion.
> 
>     CCB> Starting R in a clean directory (i.e. no ./.RData), typing a
>     CCB> single character at the prompt, then pressing C-c TAB or TAB
>     CCB> hangs things for about 45 seconds. A subsequent dynamic
>     CCB> completion requires about 10 seconds.
> 
>     CCB> Now I know that building the object name database will speed
>     CCB> things up, but this is just one example of the relative
>     CCB> slowness of ESS on this platform compared to my 2+ year old
>     CCB> Ultra 10. Other operations (ess-load-file) are likewise slow.
> 
>     CCB> FWIW, compiling the lisp files has no perceivable effect.
> 
>     CCB> Advice appreciated.
> 
> Weird.  I'm seeing no problems under Unix, sigh.
> 
> 10 seconds on FOLLOWUP???  I'd expect the inital 45 seconds, that
> seems reasonable given, for example, the problems with S-PLUS 5.x and
> constructing the completion name database.  That is really bizarre.
> I'm going to have to install ESS/Emacs/R on a windows machine here (or
> see if anyone local has that setup.
> 
> Can anyone else verify on Win98? (with possibly slower hardware?)

I can verify this. I use S-PLUS 2000 with ESS-5.1.11, Emacs-20.4
on a PII300MHZ 128MBRAM Win98 notebook. I seldom use the automatic
completion because of its slowness. I just tested how slow it is
and found that it initially takes more than 2 minutes and then
about 7 seconds on followup. Of course the initial time also depends
on how many databases are included, which in my case is 21. Even
though my 7 seconds is better than Charles's 10 seconds, it is still
a noticeable delay.

Paul.
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