&gt; I like to hear is there something I should tweak better or different, as I<br>&gt; said I have used these since Dapper.<br><br>You&#39;re good to go. However, a few things to take note of:<br><br>* memlock is too low at 250000; 512000 is an ideal number though personally, I prefer unlimited (2GB of RAM just barely passes with medium-sized projects  in a JACK+Ardour+Hydrogen environment).<br>
<br>* You can build JACK with default tmp as /dev/shm; totally in RAM (no need for mount options except for /mnt/ramfs which can serve other purposes).<br><br>* Reprioritize JACK and your sound card when running real-time. This can be achieved by appending the following into the &quot;Execute script after Startup&quot; field of QJackCtl:<br>
<br>chrt -f -p 89 `pidof jackd` &amp;&amp; chrt -f -p 99 `pidof IRQ-n` # use &quot;cat /proc/interrupts&quot; to find out the value of n (sound card IRQ)<br><br>Well, these are just &quot;optimisation&quot;. In fact, recent kernels and software have no problem running on a non-RT platform for mediocre tasks.<br>