[LAU] Ubuntu slowing down when using Ardour

[hermann meyer]

Am 17.11.2012 22:17, schrieb Aurélien Leblond:
> > My setup is as follows:
>
>     > - Ardour3 Beta5
>     > - Ubuntu 12.10 64bit
>     > - Using the Radeon open driver (FGLRX creates a lot of xruns)
>     >
>     > Now, I am not trying to start a conversation "Should I use
>     Compiz when
>     > playing music" or "Ubuntu is crap, what else should I use?" :)
>     > I like Ubuntu, I like Unity and I like Ardour3!
>     >
>     > I am just checking if other people are experiencing the same
>     issue, if there
>     > is a solution to this problem, what additional testing I should
>     do or  what
>     > additional information I should provide.
>
>
>     Wonder if the CPU 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 the slightest bit hot from being pushed too hard (usually
>     doing big Subversion commits or running sipp against a remote server).
>     The governor would take it down to the lowest frequency level to help
>     the machine cool down. This would even happen if I turned on the
>     performance governor. It wasn't a Linux issue at all, because people
>     who had the same hardware had the same problem on Windows.
>
>
> The thing is, the CPU never really goes over 40% usage, the rest of 
> the machine is still working ok, only Unity/Compix are getting much 
> slower.
>
> After much testing, it seems to be only the Ubuntu Unity Dash getting 
> slower, and only after a crash of Ardour3...
>
Maybe it helps when you clean up the cache after Ardour crashes?

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

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