Re: bit.lshift and performance - luabitop v.s. lua-5.2.0-work4

[Stefan Sandberg <keffo.sandberg@...>]

 I win!

real 3m 12.68s
user 3m 6.28s
sys 0m 0.25s

(N900)

On 2010-10-13 20:00, Martin wrote:
> On Wed, Oct 13, 2010 at 04:15:41PM +0200, Mike Pall wrote:
> > KHMan wrote:
> > $ time luajit -e "for i=1,1e9 do end"
> > 0.340
> >
> > This means it performs THREE BILLION loop iterations per second.
> > Welcome to the 21st century! Time to readjust your perceptions. :-)
> $ time luajit -e "for i=1,1e9 do end"
>
> real    0m25.092s
> user    0m22.393s
> sys     0m0.076s
>
> For comparation:
> $ time lua -e "for i=1,1e9 do end"
>
> real    1m47.820s
> user    1m36.238s
> sys     0m0.332s
>
> It seems I have to wait a little bit for 21st century to arrive into
> my backyard hehehe... :)
> Btw. it is luajit 1.1.5
>
> Martin