[R-SIG-Mac] R GUI slow on mac?

[Sean Davis]

On Apr 20, 2005, at 10:40 AM, Samuel E. Kemp wrote:

> Hi,
>
> I have R version 2.0.1 on my PowerBook G4 1.5Ghz, 512RAM, running OS X 
> 10.3.9. I have noticed that the "official" R GUI runs considerably 
> slower than R in the terminal and also JGR. Whilst the differences in 
> speed are unimportant for simple parametric stats, it becomes a bit of 
> a pig when doing non-parametric stats e.g. neural nets, feature 
> selection algorithms.
>
> In all my experiments I have set my CPU speed to "maximum" in system 
> preferences. I have also looked at the CPU usage for each 
> implementation: on average R in the terminal and JGR manage to get 98% 
> of CPU usage, compared to only around 75% for the R GUI.
>
> I guess my questions are:
>
> 1) Why the difference in speed when its on the same machine?

Just a guess, but are you running into memory issues and swapping?  I 
don't know how much more memory the GUI version uses over the 
command-line version--I would have thought not that much.

> 2) Is there any way of tweaking R GUI to make it run faster, a la R in 
> the terminal?
>
> Any help would be appreciated.
>
> Best regards,
>
> Sam.
>
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