Old Dell running faster than new MacBook
A 2.6 MacBook Pro, 2G, just to check differences between R and R.app.
Not completely fair, R.app runs in 64 bit, R in Terminal in 32 bit.
Stiil, always interesting to check now and then.
Rob
R.app (64 bit):
=====
> indexGenerator(0.08,0.15,30,100)
[1] Simulation 1 of 100 done.
[1] Simulation 2 of 100 done.
...
[1] Simulation 99 of 100 done.
[1] Simulation 100 of 100 done.
user system elapsed
8.266 0.216 8.631
(iGen comments out the print statement.)
> iGen(0.08,0.15,30,100)
user system elapsed
8.219 0.220 8.635
> iGen(0.08,0.15,30,100)
user system elapsed
8.202 0.227 8.567
> indexGenerator(0.08,0.15,30,1000)
[1] Simulation 1 of 1000 done.
[1] Simulation 2 of 1000 done.
...
[1] Simulation 999 of 1000 done.
[1] Simulation 1000 of 1000 done.
user system elapsed
83.898 1.443 98.678
>
(iGen again.)
> iGen(0.08,0.15,30,1000)
user system elapsed
81.026 1.306 82.828
> iGen(0.08,0.15,30,1000)
user system elapsed
80.688 1.311 82.535
>
R in Terminal (32 bit):
===========
> indexGenerator(0.08, 0.15, 30, 100)
[1] Simulation 1 of 100 done.
[1] Simulation 2 of 100 done.
...
[1] Simulation 99 of 100 done.
[1] Simulation 100 of 100 done.
user system elapsed
9.107 0.099 9.283
>
> indexGenerator(0.08, 0.15, 30, 100)
[1] Simulation 1 of 100 done.
[1] Simulation 2 of 100 done.
...
[1] Simulation 999 of 1000 done.
[1] Simulation 1000 of 1000 done.
user system elapsed
91.582 1.199 94.543
> indexGenerator(0.08, 0.15, 30, 100)
[1] Simulation 1 of 1000 done.
[1] Simulation 2 of 1000 done.
...
[1] Simulation 999 of 1000 done.
[1] Simulation 1000 of 1000 done.
user system elapsed
92.544 3.551 101.139
>
I did do some other work during this last run in the Terminal.
In fact TimeMachine kicked in and I read some more email.
On Oct 25, 2008, at 11:42 AM, Simon Urbanek wrote:
mini, Intel Code 1.66GHz (so much slower than yours): user system elapsed 15.321 0.123 15.764 iMac, Intel Core 2 Duo 2.8GHz (a bit faster than yours): user system elapsed 8.602 0.067 8.708
On Oct 25, 2008, at 1:06 PM, Byron Ellis wrote:
On my 2.16GHz Macbook w/ 2GB of RAM your code takes about 11.2 and 112 seconds total time elapse respectively. Are you running from the GUI or through Terminal? On Sat, Oct 25, 2008 at 10:23 AM, Nils R?fenacht <nils.ruefenacht at bluewin.ch
wrote:
Without running any other program in the background yields (on my Mac)
indexGenerator(0.08,0.15,30,100)
user system elapsed 19.739 0.220 19.961
indexGenerator(0.08,0.15,30,1000)
user system elapsed 197.721 2.138 199.012