[ESS] ESS on Mac slower than R.app?

[Kasper Daniel Hansen]

I don't know if it has been fixed (as per Rodney's email), but it used to be the case that it took forever to fontify the R buffer when you copied things over.  The solution many people have adopted is to use

(setq ess-eval-visibly-p nil)

This means that whatever you send to the R buffer does not get echoed (which I actually find nice once you get used to it).  A by-product is that it speeds everything up substantially.

Now, this is more a work-around than a fix.

Kasper

On Dec 23, 2009, at 6:00 AM, baptiste auguie wrote:

> Dear list,
> 
> I'm using R on Mac OS 10.5, with either R.app or ESS running with
> aquamacs. The only reason I keep R.app is because I find ESS very slow
> to run a given chunk of code -- copying and pasting into R.app is
> often faster. I'm guessing that it's not due to ESS itself being
> slower, but that there is something wrong with my setup.
> 
> Say I am editing a script that is 50 lines long. I start an R process
> first, then hit C-c-C-b to evaluate the buffer content. I have to wait
> almost 10 seconds before aquamacs responds again, during which time I
> have the message "Starting evaluation..." at the bottom. If I copy
> this code and paste it into R.app, the evaluation is instantaneous for
> this particular piece of code (I don't know how to make a precise
> timing but it seems less than a second).
> 
> I also tried C-c-M-b ("eval and go") and C-c C-r but the results are similar.
> 
> Needless to say, I am a complete novice with emacs. I'll appreciate any tips.
> 
> Best regards,
> 
> baptiste
> 
> ESS version 5.3.6
> 
> sessionInfo()
> R version 2.10.1 RC (2009-12-06 r50690)
> i386-apple-darwin9.8.0
> 
> locale:
> [1] en_GB.UTF-8/en_GB.UTF-8/C/C/en_GB.UTF-8/en_GB.UTF-8
> 
> attached base packages:
> [1] grid      stats     graphics  grDevices utils     datasets  methods
> [8] base
> 
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