[Rd] Very slow plot rendering with X11 on CentOS 5.5

[R P Herrold]

On Tue, 28 Sep 2010, R P Herrold wrote:

>> I am connecting from a PC to a Linux system running CentOS
>> release 5.5 (Final) and it is extremely slow to render plots
>> to the X11 device.

> f <- function(n){
    for(i in 1:n) qqnorm(rnorm(100))
}
system.time(f(20))

> I'll get a packaging built under CentOS 5 on that other architecture 
> overnight, and supplement this post

done -- same sources and build environment, but a i686 rather 
than a a x86_64 architecture.  Similar hardware at the remove 
unit in the local subnet

It is noticeably sluggish in the rendering compared to local X 
client to X server

> f <- function(n){
+    for(i in 1:n) qqnorm(rnorm(100))
+ }
> system.time(f(20))
    user  system elapsed
   0.953   0.185  36.992

-- Russ herrold