[linux-audio-dev] lock-free ring buffer code

[torbenh at gmx.de]

On Sun, Apr 06, 2003 at 01:10:17PM +0200, Ingo Oeser wrote:
> Hi there,
> 
> On Sat, Apr 05, 2003 at 06:08:51PM +0100, Steve Harris wrote:
> > On Sat, Apr 05, 2003 at 06:15:09 +0200, Ingo Oeser wrote:
> 
> But our solutions combined will give maximum effectiveness. Your
> masked adressing in indexes removes most of the branches left in
> my lock_free_fifo scheme. 
> 
> It might be worth to code that all up to have a GPLed high
> performance fifo scheme. 

have a look at libvrb. it implements a ringbuffer mapped to 2 adjacent
pages. so you can copy the data in and out with 1 memcpy...

sort of mmapped ringbuffer.

i am not sure if this really improves performance (and if it improves
it, its only a minor improvement), but it gives some convenience to the
ringbuffer user.

> Regards
> 
> Ingo Oeser
> 

-- 
torben Hohn
http://galan.sourceforge.net -- The graphical Audio language