Re: Importing libraries for the kernel

[Martin Husemann <martin%duskware.de@localhost>]

On Tue, Dec 18, 2018 at 08:53:54AM -0500, Thor Lancelot Simon wrote:
> They did _not_ cause measureable performance problems of any kind, and
> though it is theoretically possible to do this sort of thing via a
> tightly-protected userspace helper process, I prototyped that too and
> it gets very ugly, very fast -- the in-kernel way with a thread is, I
> believe, better.

Also note that it is pretty straight-forward to give such a thread the
"right" to use the FPU (or similar PCUs) in the kernel.

Martin