Re: a few questions

On Wednesday 29 August 2007 01:42, Heinrich du Toit wrote:
> The reason why I would like to use mmap is that I need to copy the
> different channels data to different data structures and using mmap I
> skip atleast 1 mem-copy - which could make a big difference under heavy
> loads.

I, personally, am doubtful.  No board supported by comedi generates more 
than a trickle of data by modern computer standards.  DMA can help a lot 
getting the data across the PCI bus, but once it's in memory copying it is 
nothing.

-- 
Frank