Realtime is also needed for multimedia [LWN.net]

Realtime is also needed for multimedia

Posted Dec 7, 2007 16:50 UTC (Fri) by niv (subscriber, #8656)
In reply to: Realtime is also needed for multimedia by giraffedata
Parent article: Enterprise realtime and cooperative development

Do you futz around with the priority of your application, though? I'd be interested in hearing
what your experience was in terms of latencies.

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Realtime is also needed for multimedia

Posted Dec 8, 2007 4:16 UTC (Sat) by ssavitzky (subscriber, #2855) [Link]

I don't normally tweak priorities, but I don't usually have anything running when I'm
recording except Audacity, an xterm, and X.  I've found that you want to use a separate video
card rather than one that shares main memory, and you want to turn off the DRI (Direct
Rendering Interface) in the X server config file.  

Recording onto an NFS-mounted filesystem is dicey.

Realtime is also needed for multimedia

Posted Dec 11, 2007 1:55 UTC (Tue) by RobertBrockway (subscriber, #48927) [Link]

Perhaps you don't want to run X on the box at all.  X is network transparent so you can
display Audacity to another box on the network.  Yes this means involving another box (or a
thin client) but it _might_ give better performance.

Realtime is also needed for multimedia

Posted Dec 11, 2007 14:31 UTC (Tue) by ssavitzky (subscriber, #2855) [Link]

I actually recorded about 2/3 of my CD that way -- it worked, but there was a noticable lag that made it less responsive for editing and overdubbing. My current recording box is a dual-core CPU, which gives me the best of both worlds.