Re: [LAU] [Jack-Devel] RT_GROUP_SCHED kernel option makes JACK unusable in Ubuntu Natty

From: Danni Coy <danni.coy@email-addr-hidden>
Date: Wed Dec 15 2010 - 15:33:16 EET

I don't think so... but the default kernel in 10.04 doesn't work so well
latency wise... I reccomend the ones in falktx's ppas....

On Wed, Dec 15, 2010 at 11:09 PM, rosea.grammostola <
rosea.grammostola@email-addr-hidden> wrote:

> On 12/15/2010 12:56 PM, rosea.grammostola wrote:
>
>> On 12/15/2010 05:33 AM, Ronan Jouchet wrote:
>>
>>> On 10-12-14 02:38 PM, ailo wrote:
>>>
>>>> On 12/14/2010 08:06 PM, Alessio Igor Bogani wrote:
>>>>
>>>>> The -lowlatency 2.6.37-8.21~ppa1 kernel have RT_GROUP_SCHED enabled.
>>>>> Instead the 2.6.37-9.22~ppa1 one's have RT_GROUP_SCHED disabled.
>>>>>
>>>>> Anyone could test those?
>>>>>
>>>>> Ciao,
>>>>> Alessio
>>>>>
>>>>>
>>>> On Natty, 2.6.37-9.22~ppa1, Virtualbox
>>>>
>>>> ...
>>>>
>>>
>>> I confirm 2.6.37-9.22~ppa1 from abogani PPA (RT_GROUP_SCHED disabled)
>>> works fine.
>>>
>>
>> AFAIK the *.33 kernel from abogani, CONFIG_RT_GROUP_SCHED=y, works fine
>> (using audio.conf instead of limits.conf).
>>
>> (All though I have an issue with installing a package like libboost-dev,
>> which takes minuts when booted a RT kernel and seconds when using the
>> generic kernel, Ubuntu and Debian, kernel 2.6.33.7-rt2. The Debian RT kernel
>> has RT_GROUP_SCHED disabled though...,
>>
>> http://www.spinics.net/lists/linux-audio-users/msg74100.html )
>>
>> \r
>>
> BTW the kernel for Tango Studio has it also enable afaik
>
> grep -i RT_GROUP_SCHED /boot/config-2.6.32-25-lowlatency
> CONFIG_RT_GROUP_SCHED=y
>
> Lucid here. Does this whole story apply to Ubuntu 10.04 also?
>
> \r
>
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Received on Wed Dec 15 16:15:04 2010

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