CPU underload

[Warner Losh]

On Sun, Nov 1, 2015 at 11:50 PM, Eugene Grosbein <eugen at grosbein.net> wrote:

> On 02.11.2015 03:47, Adrian Chadd wrote:
> > Yeah, I'll poke at it tomorrow.
> >
> > I should just be able to fire up this in gdb and figure it out.
> >
> > How's it all looking so far? Is it still stable and still performing OK?
>
> I do not use the device in practice yet, only for experiments.
> There are lots of things to be done before I can use it for real.
>
> First, the kernel in head it way too big. It should be possible
> to compile out lots of unneeded but large subsystems like JAIL support etc.
>
> Then, routing performance is still low and pmcstat shows lots of memcpy
> too many locking for uniprocessor kernel comparing with bridging.
>
> Next, USB flash support is not very stable as I have written before,
> lots of USB i/o can easily panic the kernel.
>

Does your flash device support trim / delete?

Warner


> Also, I need to think of reliable way to perform freebsd image upgrade
> over IP, without having physical access to device. I think recently
> introduced
> 're-root' feature could help.
>
> And I have not tested wifi yet because wifi support takes lots of flash
> space.
> I still need to figure out how to fit all its bits and other binaries
> I need (like openssh, routing daemons etc.) using just 8M flash.
>
>