My real point was to explore the LazyData mechanism. So I try with LazyData: no and with LazyData:
yes to see the difference, to see if I understand correctly the "WRE". The difference of the memory
allocation pointed by the task manager alarm me, but you are right (I read the FAQ 7.42): my
question has no real meaning.
Thanks for pointing me the 7.42.
Christophe
On Nov 6, 2012, at 5:13 PM, Christophe Genolini wrote:
I get it from windows tack manager (under Window 7). I guess it is in K
something.
My point was not about "how big is my dataset" (anyway, it is a fake dataset, so it can
be as big as I want) but more about "where on hell are lost the 52 760 - 39 668 K ?"
:-)
Ask your system ;) - you're comparing wrong things: a) you didn't run garbage
collection so there will be temporary objects around and b) see FAQ 7.42 why
what you're looking at has no real meaning.
Cheers,
Simon
Christophe
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
Maître de conférences en bio-statistique
Vice président Communication interne et animation du campus
Université Paris Ouest Nanterre La Défense
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--
Christophe Genolini
Maître de conférences en bio-statistique
Vice président Communication interne et animation du campus
Université Paris Ouest Nanterre La Défense
--
Christophe Genolini
Maître de conférences en bio-statistique
Vice président Communication interne et animation du campus
Université Paris Ouest Nanterre La Défense
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