[R] Increased execution speed of R2.0.1?

[Uwe Ligges]

mkondrin at hppi.troitsk.ru wrote:

> Hello!
> I have just upgraded from the R 1.9.1 to the latest version and
> installed a couple of packages. I as a rule import only base package
> with this couple of packages at startup. I was very impressed with the
> speed R2.0.1 does now run (it seems to me I have 50% gain over 1.9.1
> version). My question: is this due to "lazy-loading" mechanism (it looks

Yes.

> unlikely to me as IMHO lazy-loading conserves memory usage, not cpu
> cycles) or are packages gots byte-compiled during installation (it is
> more likely taking into account binary *.rdx files in R/library/...
> tree). There used to be an alpha verision of byte-compiler for R - is it
> now included into "official" version of R?

No.

Uwe Ligges

> Thank you.
> 
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