[Jack-Devel] jackd on low memory embedded systems

[Matt Flax]

Hi there,

That is a good start, however I found that if I reduce to say 4 ports, 
it still requests about 13MB ... the free space on this embedded system 
is about half that ! My understanding is that shm is trying to lock down 
enough memory for now and the future ... however it may be excessive ?!?

If you consider that @ 48kHz, 6ms latency, we are talking about 
kilobytes of audio data - maximum !
So conceivably, we should be able to operate with limited memory 
resources of megabytes, rather then tens of megabytes.

I understand that the bigger concept is to keep as much in memory to 
avoid future paging ... still searching ...

Matt

On 19/07/15 19:50, Hanspeter Portner wrote:
> I had the same issue a while back. I think that I got away by reducing 
> the maximal
> amount of ports.
>
> man jackd (jack1)
> ------------------------------------------------------------------------------------------------------ 
>
>  -p, --port-max  n
>               Set the maximum number of ports the JACK server can 
> manage.  The
>               default value is 256.
> ------------------------------------------------------------------------------------------------------ 
>
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