On Wed, May 26, 2010 at 09:54:26AM +0200, Xavier Chantry wrote:
On Wed, May 26, 2010 at 2:08 AM, Philipp Überbacher <hollunder@lavabit.com> wrote:
Sadly audio performance / locks /latency seems to be not on graphics driver developers minds at all.
It's definitely not their primary focus. But if you open a bug report saying "that commit greatly increased latency" and you can prove it, you can be sure they will do something about it.
I will. But my first concern ATM is to get this system in a usable state - that's what the customer pays me for. On of the many things I tried before even posting was to use the nv driver. Modified the xorg.conf, but for some reason, the system goes on using nouveau regardless. ** Is it still possible to use nv on today's Arch ? ** I've used nv for years without any problem. The reason to prefer it over nvidia was not ideological - nvidia has latency problems as well, and I never needed 3D acceleration. Looking at the xrun statistics in function of audio period size, it looks like current nouveau is blocking audio (either by dis- abling interrupts, or by locking a shared HW resource) for about 3-4 ms. *No* driver today should ever do that - it's really late 1990's performance.
The work to provide good, detailed, and useful bug reports is in user's hands, not developers'. When the users don't do their homework, regressions remain.
Agreed. Ciao, -- FA O tu, che porte, correndo si ? E guerra e morte !