On 9/29/05, Mark Knecht <[EMAIL PROTECTED]> wrote: > On 9/29/05, Dave Nebinger <[EMAIL PROTECTED]> wrote: > > > Were I you, I would consider: > > > > > > - If keeping X, switching to the absolute most minimal wm possible > > > (twm, ratpoison, ion), to see what effect that had. > > > - If downstepping from X, investigating what programs run under > > > DirectFB and seeing what effect that had. > > > - If going cold-turkey off X, seeing how far you get with the > > > command-line and ncurses programs. > > > > I would also add the following: remoting X. X is a hog, as Holly said, but > > there's no reason the X server would need to run on the same box as the > > ongoing recording session. > > > > Running two systems, one running X and handling the gui operations, and one > > running your audio apps, might provide enough of the separation to reduce > > the latency on the audio box. Of course the two cards should probably be > > connected with at least a 100mb Ethernet connection (to eliminate the > > overhead of dealing with the network conversations for X). > > This is an interesting idea actually. I currently run two boxes > anyway. All audio is connected between them using ADAT optical (i.e. - > red laser) or spdif so I've got 26 digital audio channels going > across. Maybe running remotely could solve some of this. Thanks.
Well, interesting, but not the solution. I'm logged into Lightning, the AMD64 machine, remotely in two terminals. One terminal is running QJackCtl, a small X app that allows me to start and stop the Jack server, along with make connections, etc. In a second terminal I log in as root and start an emerge of a couple of things that don't get built - a new kernel tree and firefox-bin. I don't immediately get xruns, but when heavy disk operations start I do. Some of the xruns are over 100mS - absolutely huge when you're trying to run at 3mS! What's interesting to me is that I Can stream a movie from the EIDE DVD drive on this machine and never create an xrun, but as soon as I start using the SATA drive I do. That seems to be a pretty good clue I think. It's a good idea though. I'll keep looking into it. Cheers, Mark -- gentoo-user@gentoo.org mailing list
