Re: Issues with the current varargs implementation (Was: Re: inadequate documentation for select and table.unpack)

[KHMan <keinhong@...>]

On 6/22/2016 8:39 PM, Dirk Laurie wrote:
> 2016-06-22 12:21 GMT+02:00 steve donovan:
> > On Tue, Jun 21, 2016 at 10:47 PM, Philipp Janda:
> > > First of all: vararg performance is fine. .... Performance of `select` is fine too.
> > > Calling it means pushing all of its arguments to the Lua stack -- like for any
> > > other function.
> >
> > I also wonder whether we're going to squeeze much more performance out
> > of this lemon, and whether this is in fact an important lemon.
>
> It is unimportant in the sense that whether traversing the vararg
> using select is O(n) or O(n²) seldom matters in practice.
>
> It is important in the sense that it is highly instructive to ponder
> the issues involved.
[snip snip]

Hmmm... anyone got an artificial benchmark to test and compare 
timings? I don't believe I've seen any timing data so far...

--
Cheers,
Kein-Hong Man (esq.)
Kuala Lumpur, Malaysia