[LAU] 3.8 vs. 3.5 for realtime USB performance
nando at ccrma.Stanford.EDU
Fri Jun 28 18:49:56 UTC 2013
On 06/28/2013 10:23 AM, Fernando Lopez-Lezcano wrote:
> On 06/27/2013 04:24 PM, James Stone wrote:
>> On Sun, Jun 9, 2013 at 10:04 AM, Clemens Ladisch <clemens at ladisch.de
>> <mailto:clemens at ladisch.de>> wrote:
>> James Stone wrote:
>> > I am struggling to get usable realtime performance <512 latency
>> on my
>> > Ubuntu Studio "low latency" kernels 3.8... The 3.5 kernel in
>> contrast works
>> > fine. I put a bugreport in with Ubuntu, but it seems like no-one
>> else is
>> > reporting the same problem. Makes me wonder if I am doing
>> something wrong.
>> > Is there anything additional I should be trying, or is this a
>> known problem
>> > that is being worked on by the kernel devs?
>> You have to wait for the next stable kernel:
>> Hi Clemens (and everyone else),
>> This didn't fix the bug. See:
>> Do you have any thoughts? Is this a problem with alsa/jack (as seems to
>> be being implied) or with the kernel?
> I'm building a kernel with the fix that's here:
> It seems that it fixes the problem.
I can get 128x3 with no problems or glitches on an VSL181 USB2
interface. Anything lower does not work but this is perfectly usable (in
a short test).
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