[linux-audio-dev] Re: [Freebob-devel] [REQUEST] test the influence of linux1394 kernel drivers on scheduling latency

[Pieter Palmers]

Stefan Richter wrote:
> Pieter Palmers wrote:
>> The problem summary is that running ieee1394 ISO traffic can cause 
>> scheduling latency spikes up to 1ms, even for RT threads with higher 
>> priority.
> 
> Do your patches to lower CPU utilization show any influence?

Not tested yet. I have a hunch that the removal of the dummy read might 
improve the situation. But I haven't investigated this yet.

> 
> Do you get 1394 bus resets while ieee1394stress is running? (You could 
> e.g. print raw1394_get_generation(handle) when it starts and when it exits.)

As far as I can tell there are no bus resets, but I'll check.

Pieter