8 Jun
2013
8 Jun
'13
9:49 p.m.
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?
James
9 Jun
9 Jun
11:04 a.m.
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:
<http://git.kernel.org/linus/e194401783>
Regards,
Clemens
12:25 p.m.
On Jun 9, 2013 10:04 AM, "Clemens Ladisch" <clemens(a)ladisch.de> wrote:
Superb info! Thanks!
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:
<http://git.kernel.org/linus/e194401783>
28 Jun
28 Jun
1:25 a.m.
On Sun, Jun 9, 2013 at 10:04 AM, Clemens Ladisch <clemens(a)ladisch.de> wrote:
James Stone wrote:
Hi Clemens (and everyone else),
This didn't fix the bug. See:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1191603
and:
https://bugs.launchpad.net/ubuntu/+source/linux-lowlatency/+bug/1185563
Do you have any thoughts? Is this a problem with alsa/jack (as seems to be
being implied) or with the kernel?
James
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:
<http://git.kernel.org/linus/e194401783>
7:23 p.m.
On 06/27/2013 04:24 PM, James Stone wrote:
On Sun, Jun 9, 2013 at 10:04 AM, Clemens Ladisch <clemens(a)ladisch.de
<mailto:clemens@ladisch.de>> wrote:
James Stone wrote:
I'm building a kernel with the fix that's here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110
It seems that it fixes the problem.
-- Fernando
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:
<http://git.kernel.org/linus/e194401783>
Hi Clemens (and everyone else),
This didn't fix the bug. See:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1191603
and:
https://bugs.launchpad.net/ubuntu/+source/linux-lowlatency/+bug/1185563
Do you have any thoughts? Is this a problem with alsa/jack (as seems to
be being implied) or with the kernel?
8:50 p.m.
On 06/28/2013 10:23 AM, Fernando Lopez-Lezcano wrote:
On 06/27/2013 04:24 PM, James Stone wrote:
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).
-- Fernando
On Sun, Jun 9, 2013 at 10:04 AM, Clemens Ladisch <clemens(a)ladisch.de
<mailto:clemens@ladisch.de>> wrote:
James Stone wrote:
I'm building a kernel with the fix that's here:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110
It seems that it fixes the problem. 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:
<http://git.kernel.org/linus/e194401783>
Hi Clemens (and everyone else),
This didn't fix the bug. See:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1191603
and:
https://bugs.launchpad.net/ubuntu/+source/linux-lowlatency/+bug/1185563
Do you have any thoughts? Is this a problem with alsa/jack (as seems to
be being implied) or with the kernel?
11:02 p.m.
On Fri, Jun 28, 2013 at 7:49 PM, Fernando Lopez-Lezcano <
nando(a)ccrma.stanford.edu> wrote:
On 06/28/2013 10:23 AM, Fernando Lopez-Lezcano wrote:
Hmm.. not tried that patch, but I tried the reverted kernel - which is the
fix they are pushing for that bug, and it doesn't help.
James
On 06/27/2013 04:24 PM, James Stone wrote:
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).
-- Fernando
On Sun, Jun 9, 2013 at 10:04 AM, Clemens Ladisch <clemens(a)ladisch.de
<mailto:clemens@ladisch.de>> wrote:
James Stone wrote:
Hi Clemens (and everyone else),
This didn't fix the bug. See:
https://bugs.launchpad.net/**ubuntu/+source/linux/+bug/**1191603<https:/…
and:
https://bugs.launchpad.net/**ubuntu/+source/linux-**
lowlatency/+bug/1185563<https://bugs.launchpad.net/ubuntu/+source/linux-…
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:
https://bugs.launchpad.net/**ubuntu/+source/linux/+bug/**1136110<https:/…
It seems that it fixes the problem.
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:
<http://git.kernel.org/linus/**e194401783<http://git.kernel.org/linus/e194401783>
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days inactive
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6 comments
3 participants
participants (3)
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Clemens Ladisch -
Fernando Lopez-Lezcano -
James Stone