linuxaudio.org

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Hi Peder. Thanks for your assistance. Info below:
>What CPU do you have (grep "model name" /proc/cpuinfo)?
AMD Phenom(tm) 9750 Quad-Core Processor
>Have you made the limits.conf hack to enable realtime and are you
I'm afraid I have no idea. I have a real-time kernel and I have it set to on

when I use firewire, but off when I use alsa. All music production (when I

get the one-off xruns) happens only when using firewire, and thus with

realtime on.
>running jack in realtime (with say -P70)?
Yes I have jack in realtime, on exactly P70, but ONLY in firewire mode. Alsa

mode is set to default priority and non-realtime. I have QjackCtl setup so

that it launches and starts in Alsa-mode when I boot my computer. When I do

music stuff and turn my firewire device on I switch to the "firewire" preset

which is realtime P70.
>Are you running jack with ?ber-low latency; what's the frames/period

setting?
In firewire mode I have frames/period setting of 256 with buffer on 3 = a

latency of 17.4 msec. Alsa mode is much higher on 1024 and around 70 msec

(but I believe that should be irrelevant as I don't do any audio/midi jack

connection stuff in Alsa mode.
-Dan
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Hi Peder. Thanks for your assistance. Info below:>What CPU do yo=

u have (grep "model name" /proc/cpuinfo)?AMD Phenom(tm) 9=

750 Quad-Core Processor

quoted text
>Have you made the limits.conf hack to enable realtime and are youI'm afraid I have no idea. I have a real-time kernel and I have it se=

t to on when I use firewire, but off when I use alsa. All music production =

(when I get the one-off xruns) happens only when using firewire, and thus w=

ith realtime on.

>running jack in realtime (with say -P70)?Yes I have jack in rea=

ltime, on exactly P70, but ONLY in firewire mode. Alsa mode is set to defau=

lt priority and non-realtime. I have QjackCtl setup so that it launches and=

 starts in Alsa-mode when I boot my computer. When I do music stuff and tur=

n my firewire device on I switch to the "firewire" preset which i=

s realtime P70.
>Are you running jack with ?ber-low latency; what's the frames/perio=

d setting?In firewire mode I have frames/period setting of 256 with=

 buffer on 3 =3D a latency of 17.4 msec. Alsa mode is much higher on 1024 a=

nd around 70 msec (but I believe that should be irrelevant as I don't d=

o any audio/midi jack connection stuff in Alsa mode.

-Dan
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