[Development] QtSC: Scene Graph discussion
Thiago Macieira
thiago.macieira at intel.com
Thu Aug 1 22:46:00 CEST 2013
On quinta-feira, 1 de agosto de 2013 20:21:23, Laszlo Papp wrote:
> On Thu, Aug 1, 2013 at 7:59 PM, Thiago Macieira
>
> <thiago.macieira at intel.com>wrote:
> > On quinta-feira, 1 de agosto de 2013 19:38:12, Laszlo Papp wrote:
> > > 3
> >
> > This discussion is going off on a tangent but...
> >
> > you do realise that there's an overhead associated with dynamic libraries,
> > right? The code runs slightly slower due to indirect access to functons
> > and
> > data, and there's a start-time impact due to the relocation and dynamic
> > linking. Even if you use prelink, the problems do not go away completely.
>
> Startup time is no concern in our product.
I did mention runtime performance impact too due to -fPIC. All architectures
(except IA-64[*]) are affected. Please take the time to investigate a single
statically-linked executable.
[*] only because -fPIC is mandatory on IA-64, even for executables.
--
Thiago Macieira - thiago.macieira (AT) intel.com
Software Architect - Intel Open Source Technology Center
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