R devel - Nov 2012 - LazyData: no / yes

Hi the list

I have package foo0 with a big dataset 'myData'.
In DESCRIPTION, if I use 'LazyData: no', then I get:

  - when I open a R session : memory used=20 908
  - when I attach 'library(foo0)' : memory used=24364
  - then I load the set 'data(myData)' : memory used=39 668

If I use LazyData: yes', then I get
  - when I open a R session : memory used=20 908
- when I attach 'library(foo0)' : memory used=52 760.

In this second example, after 'library(foo0)', I was expecting the
memory to rize up to 39 668, not
to 52 760... Where does the difference come from?

Thanks
Christophe


-- 
Christophe Genolini
Ma?tre de conf?rences en bio-statistique
Vice pr?sident Communication interne et animation du campus
Universit? Paris Ouest Nanterre La D?fense

On Nov 6, 2012, at 1:03 PM, Christophe Genolini wrote:
> Hi the list
> 
> I have package foo0 with a big dataset 'myData'.
> In DESCRIPTION, if I use 'LazyData: no', then I get:
> 
> - when I open a R session : memory used=20 908
> - when I attach 'library(foo0)' : memory used=24364
> - then I load the set 'data(myData)' : memory used=39 668
> 
> If I use LazyData: yes', then I get
> - when I open a R session : memory used=20 908
> - when I attach 'library(foo0)' : memory used=52 760.
> 
> In this second example, after 'library(foo0)', I was expecting the
memory to rize up to 39 668, not to 52 760... Where does the difference come
from?
> 
What do you mean by "memory used" - i.e. where do you get that from?
After GC?
This certainly doesn't look like a "big dataset" by the numbers -
I would classify that as tiny :)

Cheers,
Simon

> Thanks
> Christophe
> 
> 
> -- 
> Christophe Genolini
> Ma?tre de conf?rences en bio-statistique
> Vice pr?sident Communication interne et animation du campus
> Universit? Paris Ouest Nanterre La D?fense
> 
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