Okay, I then need to look at this again. If I unterstand correctly,
then one piece is missing, and that is 2D/X11 acceleration. Some time
ago I read something about a Wayland based UI for the Linux world,
along with something called "hardware video scaler" for acceleration -
whatever that is. I wonder what we can do.
2015-01-30 12:59 GMT+01:00 Jared McNeill <jmcneill%invisible.ca@localhost>:
I think at that time DEBUG and maybe LOCKDEBUG were enabled in the kernel.
No longer the case, and lots of improvements since then. SD card performance
is pretty good now, considering we don't support UHS-I transfer modes yet:
undine# dd if=/dev/rld0c of=/dev/null bs=1m count=128
128+0 records in
128+0 records out
134217728 bytes transferred in 7.632 secs (17586180 bytes/sec)
On Fri, 30 Jan 2015, Stephan wrote:
That sounds great. The last time I tried a current NetBSD image on the
Raspberri Pi, the overall performance subjectively felt a bit slower
compared to Linux; e.g. regarding the boot time or SSH key generation.
Though I didn?t perform any kind of benchmark. That was at the time
when DMA support for the 2835 was just imported.
Are there any benchmarks or known issues in terms of performance with
the NetBSD ARM port or 2835 support?
2015-01-30 12:46 GMT+01:00 Jared McNeill <jmcneill%invisible.ca@localhost>:
The kernel driver is BSD licensed (see src/sys/external/bsd/vchiq) and
source code is available for the userland libaries (EGL, GLES, GLES2,
OpenMAX IL, etc): https://github.com/raspberrypi/userland
Once vc4 drm and the Mesa support matures, we can look into bringing that
in
at some point as well.
On Fri, 30 Jan 2015, Stephan wrote:
Hi
How was this achieved? Wasn?t there mainly proprietary (Linux?) bits
for 3D accelleration? The Mesa driver isn?t yet finished, is it?
2015-01-30 11:57 GMT+01:00 Jared McNeill <jmcneill%invisible.ca@localhost>:
Hi folks --
3D graphics and hardware video decode are now working on the Raspberry
Pi
More info on the NetBSD blog:
http://blog.netbsd.org/tnf/entry/raspberry_pi_gpu_acceleration_in
Anybody want to package XBMC? :)
Cheers,
Jared