Linux Music with Guitarix – A Fix for High CPU Usage

A quick tip for those using the excellent Guitarix guitar effects program on Linux. I regularly found both cores of my machine up around the 90%-100% when that application was running, causing XRuns in Jack and clicks in outputted audio. I just found a way around it. For some really weird reason, SSHing into my main box from a separate, really underpowered netbook (an EEE701) with the “-X” flag, then running Guitarix from that machine, results in much lower CPU usage. It’s weird because Guitarix is still running on my main machine, it’s just displayed on the remote machine. Presumably something in the display code for Guitarix is a lot heavier than it should be.

Site Re-Located

This weblog is now running on its own domain – www.martyndavis.com. You should have been redirected here automatically if you clicked a link which went to the other address (www.marengo-ltd.com/blog/). Apache mod_rewrite settings, being somewhat of a black art, means it’s possible I’ve mucked something up :) If you see any problems with any pages you’re trying to access, just comment here.

VeroBoardUino – How to Build an Arduino-Compatible Board for Very Little Money

Note: this was going to be one post but it’s ballooned into a huge thing so this is one of several which will be posted over the next few days.  Stay tuned!

So you’ve got a nice Arduino board for experimentation and you’ve built a circuit on a breadboard which you’d like to make permanent.

It’s expensive (and overkill) to use a new arduino each time you build a new circuit you want to keep. Here’s how you can easily build an arduino-compatible board, from complete scratch, for a few pounds/dollars/euros so you can keep your real arduino for experimenting with…

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