[ESS] Delay on left-parenthesis

[Ken Williams]

> -----Original Message-----
> From: Vitalie Spinu
> Sent: Monday, September 17, 2012 1:55 PM
> Subject: Re: [ESS] Delay on left-parenthesis
>
>
> Way too long. It used to happen on heavy generics like print( and plot(, but
> not more than 1-2 seconds for me. Does this happen to you for other
> functions as well?

No, it seems to be worst on things like head().  Today, typing `head(` will result in about a 20 second delay.  By contrast, if I do this:

> foo.function <- function(x,y,z) x*y*z
> foo.function(3,4,5)

then I see no perceptible delay.

>
> Is your R on local machine? How many packages do you have installed?

R is on the local machine.  I guess I have a fair number of packages installed, but not excessively so.  `ls /cygdrive/c/Program\ Files/R/R-2.15.1/library|wc -l` reports 63 packages, which includes the core stuff like 'base' and 'parallel'.

>
>   >> It's unresponsive to a C-g or C-c C-g.
>   >>
>
> This is weird, it should definitely help.

I also just tried C-c C-c, which doesn't interrupt it either.

>
>   > For me, this bug is now gone with the latest beta, i.e. ESS 12.09.
>
> Yes, the arguments of plot and print are now pre-cached and never
> requested from R. It might be useful to pre-cache some other stuff, but I
> have never experienced problems with any other function.

I could give the newest beta a shot.


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