[LAU] 3.8 vs. 3.5 for realtime USB performance

[James Stone]

On Tue, Jun 25, 2013 at 7:13 PM, Fernando Lopez-Lezcano <
nando at ccrma.stanford.edu> wrote:

> On 06/09/2013 07:16 AM, Len Ovens wrote:
>
>>
>>
>> On Sat, June 8, 2013 12:49 pm, 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?
>>>
>>
>> It should not hurt to use the older kernel though, just run the 3.5.
>> Anyway, I have pointed out the patch to our kernel guy, so hopefully it
>> can appear in the 3.8 if you are running ubuntu 13.04. There should also
>> be a 3.9 or 3.10 pretty soon.
>>
>
> Hi Len,
> Would you mind posting a url for the patch (or patches)? I'd like to
> incorporate them in the kernels I build...
> Thanks,
> -- Fernando
>

The patch doesn't actually fix the problem on my system.. Staying on 3.5..

James
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