[LAU] Ubuntu slowing down when using Ardour

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To: <linux-audio-user@...>, <brummer-@...>, <gnome@...>
Date: Sunday, November 18, 2012 - 12:44 pm

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>>* > My setup is as follows:*>>**>>* > - Ardour3 Beta5*>>* > - Ubu=
ntu 12.10 64bit*>>* > - Using the Radeon open driver (FGLRX creates a l=
ot of xruns)*>>* >*>>* > Now, I am not trying to start a conversati=
on "Should I use*>>* Compiz when*>>* > playing music" or "Ubuntu is=
crap, what else should I use?" :)*>>* > I like Ubuntu, I like Unity an=
d I like Ardour3!*>>* >*>>* > I am just checking if other people ar=
e experiencing the same*>>* issue, if there*>>* > is a solution to =
this problem, what additional testing I should*>>* do or what*>>* =

U frequency scaling is causing this issue. I had an*>>* issue on a Dell=
machine at work where the box would run really slowly*>>* if it got th=
e slightest bit hot from being pushed too hard (usually*>>* doing big S=
ubversion commits or running sipp against a remote server).*>>* The gov=
ernor would take it down to the lowest frequency level to help*>>* the =
machine cool down. This would even happen if I turned on the*>>* perfor=
mance governor. It wasn't a Linux issue at all, because people*>>* who =
had the same hardware had the same problem on Windows.*>>**>>**>>* The thin=
g is, the CPU never really goes over 40% usage, the rest of *>>* the machin=
e is still working ok, only Unity/Compix are getting much *>>* slower.*>>**=

>Using Unity 2D or 3D? 2D is supposed to use less.

>My suggestion: drop Unity, use XFCE instead.

> Maybe it helps when you clean up the cache after Ardour crashes?

>

> sudo sync; echo 3 | sudo tee /proc/sys/vm/drop_caches

Thanks for the suggestions, I'll try that out next time.

@David: In Ubuntu 12.10, Unity 2D doesn't exist anymore. And thanks for the
suggestion, but I actually doesn't want to drop Unity for XFCE - I really
like the look and feel of Unity... But that's a discussion for another time
:)

Right now, I have re-installed the FGLRX driver... Looks like the
performance issue is gone, even after an Ardour crash, and I apparently
don't get xruns.... I'll keep you posted!

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>> > My se=
tup is as follows:

t of xruns)
;Should I use
else should I use?" :)
g the same
ting I should
ue. I had an
really slowly
ard (usually
remote server).
level to help
ed on the
l, because people
ws.
rest of=20
ing much=20
sh getting=20
Using Unity 2D or 3D? 2D is supposed to use less.>My suggestion: drop Unity, use XFCE in=
stead.
en you clean up the cache after Ardour crashes?
@David: In Ubuntu 12.10, Unity 2D doesn't exist anymore.=
And thanks for the suggestion, but I actually doesn't want to drop Uni=
ty for XFCE - I really like the look and feel of Unity... But that's a =
discussion for another time :)
Right now, I have re-installed the FGLRX driver... Look=
s like the performance issue is gone, even after an Ardour crash, and I app=
arently don't get xruns.... I'll keep you posted!

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Messages in current thread:
[LAU] Ubuntu slowing down when using Ardour, Aurélien Leblond, (Sun Nov 18, 12:44 pm)
Re: [LAU] Ubuntu slowing down when using Ardour, Neil C Smith, (Mon Nov 19, 10:01 am)
Re: [LAU] Ubuntu slowing down when using Ardour, Aurélien Leblond, (Mon Nov 19, 7:14 pm)
Re: [LAU] Ubuntu slowing down when using Ardour, Neil C Smith, (Mon Nov 19, 10:26 pm)
Re: [LAU] Ubuntu slowing down when using Ardour, Ralf Mardorf, (Tue Nov 20, 7:28 am)
Re: [LAU] Ubuntu slowing down when using Ardour, Brett McCoy, (Mon Nov 19, 7:43 pm)