On 03/01/2015 02:51 PM, Robert Jonsson wrote: > Sorry to go off on a tangent but is USB comparable in performance to > firewire under linux now? Latency? Number of channels? Mostly I'm asking > about latency. > > Regards, > Robert Hello Robert, It is comparable though I haven't tested my USB interface with more than two channels. It runs well at 64/48000*3 (-n3 -p64 -r48000 so 4ms one way system latency) and it can even run at -n3 -p8 but then I can only start up Aqualung and listen to a track ;) I've set up my system in a very similar way like Len described. Some differences: - RT kernel - Jack has a RT prio that doesn't interfere with any other RT prio - snd-hrtimer is loaded and all ALSA seq stuff uses that - Light desktop environment (LXDE) - Ext4 is mounted with options for maximum throughput (noatime,nobarrier,data=writeback) Basically I set everything up as described here: http://wiki.linuxaudio.org/wiki/system_configuration Jeremy
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