Re: What the problem?

On Monday, September 06, 2010 12:43:05 am GMD GammerMaxyandex.ru wrote:
> When the load of processor increasing up to more than 70 percent, we got a
> hard stammering of sound and experience rough fall of FPS. We can see that
> only if the position of recipient is always the same, never had been
> changed. If we permanently changing the position of recipient, we don`t
> get that bug. I wrote the code to solve that issue in Linux OS

Hi.

Would it be correct to say that the stuttering still happens if you specify 
the same listener position again, instead of randomly shifted? If so, that's 
odd since it follows the same code path regardless if you're setting the same 
values over or not.

Do you know which device is being opened? I'd assume PulseAudio, being on 
Ubuntu. You can tell by checking the string returned by

alcGetString(Device, ALC_DEVICE_SPECIFIER);

If it is PulseAudio, can you try the following (just to see if it clears up).. 
edit ~/.alsoftrc and add:

[general]
drivers = alsa

[alsa]
mmap = off

If that works, then it's probably due to PulseAudio waiting too long before 
signaling that it needs more audio. In that case, it might not be an issue 
with the next OpenAL Soft version (current in Git/SVN), which uses a more 
traditional update loop for the PulseAudio backend.

A new OpenAL Soft release hopefully isn't far off.. I just need to try and 
figure out some performance oddities, and hopefully get the loop points 
extension finished.
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