[pulseaudio-discuss] [PATCH v2 1/6] core: add ARM NEON optimized mono-to-stereo/stereo-to-mono remapping code

[Peter Meerwald]

Hello,

> > > Can you give a status update: what remains to be done before these
> > > patches can be merged?
> > I am glad you asked; I am working on a v3 these days to address the 
> > following issues:
> Awesome! Looking forward to this.

here it is :)

> > - performance degradation on Cortex-A9 / pandaboard for remap: NEON is 
> > fast on Cortex-A8 but slow on A9; need to distinguish

> Is this some sort of known A8 vs. A9 issue?

sort of; A8 and A9 are different wrt NEON, the optimization rules changed

> > - fix issues in test code
> 
> Hopefully we'll be able to move this to a standalone test based on
> Deng's work that you might've seen.

I have see it ; for now I have decided to submit the tests next to the 
code; it is difficult to get access to the actual functions since most are 
static

I agree that the tests should be separate and have a consistent framework 
(e.g. to measure timing with mean/stddev, etc.)

p.

-- 

Peter Meerwald
+43-664-2444418 (mobile)