Re: [PATCHES] Reorganization of spinlock defines

On Fri, 12 Sep 2003, Tom Lane wrote:

> "Marc G. Fournier" <scrappy@postgresql.org> writes:
> >> Right, though I am not sure people will know _slow_ configuration vs.
> >> PostgreSQL is slow.
>
> > No, but definitely something for those discussion performance to add
> > to their checklist :)
>
> > BTW, post-compile, running system ... how do you check this?  Or can you?
>
> If we force people to give a --without-spinlocks config option to build
> that way, then `pg_config --configure' will reveal the dirty deed ...

That's not quite what I meant :)  Right now, if I understood what Bruce
was saying, if someone doesn't have spinlocks, it switches to using SysV
Messenging, correct?  In the current system, is there anything that one
can do on a running, live system, to detect that you aren't using
spinlocks?