Re: Ideas for reducing memory copying and zeroing times
Marcus Meissner (msmeissn@cip.informatik.uni-erlangen.de)
Wed, 24 Apr 1996 17:05:21 +0200 (MET DST)
> > There seems to be a fair amount of interest and speculation about copy
> > and zero timings. For now, how about making the zeroing, and the larger
> > data copies, call through a function pointer which can be changed using
> > a loadable module? This includes memcpy_to_user and memcpy_from_user.
> > Then we can experiment to our hearts' contents. If we're going to start
> > using the FPU (for some chips), this will be necessary anyway so that
> > the same kernels will run on hardware that lacks one.
>
> Hmm, why aren't we using idle loops for zeroing pages? Asynchronous zeroing?
>
> > -- Jamie
>
> Marcus
Marcus