"use register arguments" option enabled.

[Mike Honeyfield]

On 5/17/05, Ignacio Vazquez-Abrams <ivazquez at ivazquez.net> wrote:
> On Tue, 2005-05-17 at 10:29 +1200, Mike Honeyfield wrote:
> > I am just wondering the reasoning behind having the experimental
> > option "Use register arguments" on in the kernel config.
> >
> > It has caused some issues for me, have since fixed it, but was
> > wondering why an experimental feature that could/can break the ABI for
> > 3rd party binary only modules would be enabled?
> 
> Speed. Pushing data onto the stack takes longer than just shoving it
> into a register.
> 

So the speed improvement is enough to justify this? 

I could understand Fedora Core's kernels have this feature, but was a
bit suprised to see the same issue in RHEL.

Cheers

Mike