svn commit: r242466 - head/sys/mips/mips

[Adrian Chadd]

On 2 November 2012 08:09, Ian Lepore <freebsd at damnhippie.dyndns.org> wrote:

> Of course, it doesn't save anything if the system is using more than 128
> maps, did you check?  When I checked on an arm dreamplug system, there
> were roughly 1850 maps allocated by time it got to the login prompt
> (making that local cache of 500 maps completely useless).

I don't reach that during boot on my 16MB RAM APs. There just aren't
that many devices.

> The patches I posted in arch@ a while back addressed this problem by
> setting up an uma(9) pool for maps (and pools for busdma buffers).  The
> patches were designed to be easy to incorporate for both arm and mips
> busdma implementations.

My problem is memory overhead at boot time. :/



Adrian