Gary Hodges wrote:> Hi. Last week I updated from 32 bit etch to 32 bit lenny on an AMD SMP
> machine. I first cloned the system disk to an identical drive, and
> updated the cloned drive. I still have the etch install untouched on
> the previous drive, which has allowed me to do some testing. After the
> update R has slowed down significantly. A user brought this to my
> attention, and at this point we have only tested one script (multiple
> times, different days).
>
> etch -> 48 seconds
> lenny-> 4 min 5 sec
>
> I compiled a kernel on both etch and lenny to see if there was a
> comparable slow down.
>
> etch -> 45 min
> lenny -> 47 min 35 sec
>
> So, the kernel compile is a a little slower on lenny.
>
> During the upgrade there was an error of some sort about updating the
> following packages:
> r-base-core
> r-cran-kernsmooth
> r-cran-mgev
> r-cran-cluster
>
> I deleted those packages and continued with the upgrade. When the
> upgrade was finished, I reinstalled those packages. Other than that
> minor issue, the upgrade went really smooth. Cheers, Gary
Update: We just tried something a little different. My colleague's
script writes output to the screen. I suggested writing to pdf files
instead and it ran much faster; comparable to the speeds on etch. So at
this point I'm guessing this is not a R issue per se, but an issue with
graphics.