On 08/19/2014 11:47 PM, John Weber wrote:
On 8/19/14, 1:19 PM, Carlos Rafael Giani wrote:
Hello,
I want to take a few minutes and mention in this mailing list the
amazing work of Jon Nettleton, Russell King, and others. This is 3.14
kernel, with FSL patches, upstream patches, memleak fixes, and
numerous improvements for stability that are not present in the
linux-imx kernels. The target hardware for this has been the SolidRun
product line so far (since the developers' time is limited, and they
don't have every imx6 device under the sun to test with), but putting
other devicetree files in it should not be difficult. Initial tests
on SolidRun hardware show noticeable improvements.
This looks pretty awesome. Thanks for sharing. What versions of
SolidRun HW is it supporting?
All of them. All CuBox-i and HummingBoard variants.
To list a few enhancements:
* FEC ethernet performance, rated by Freescale at 470 Mbps; with
Russell King's improvements pushed to 630+ down and 500+ up
* lower I/O latencies
* SDHC patchset for better UHS-I support
* residue support for SDMA with FSL's custom firmware integrated to
work with HDMI and optical SPDIF
* higher DMA and GPU efficiency in general
* and of course the upstream 3.14 improvements over 3.10
VPU and GPU have also successfully been tested with this kernel.
Cool! What GPU and VPU tests have you been running?
Jon Nettleton, I, and others have been running XBMC with VPU
acceleration, Chromium with EGL-based drawing enabled + with my VPU
patches (which I will release here in a few days) running HTML5 Canvas
and WebGL tests, and gstreamer-imx with the EGL-based video sink that
uses the Vivante direct textures. Using the jellyfish test files:
http://jell.yfish.us/ , XBMC has shown to play h264 bitrates up to 100
Mbps (higher ones exhibit framedrops).
--
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