Networking

I was interviewed recently by Will Backman of BSDTalk about PCS and Packet Debugger. The full interview is here:

<a href=http://cisx1.uma.maine.edu/~wbackman/bsdtalk/bsdtalk101.mp3>Interview</a>

and the BSD Talk page itself is here:

<a href=http://bsdtalk.blogspot.com/>BSDTalk Page</a>

In order to facilitate the debugging of networking code I have used my library, <a href=http://pcs.sf.net>Packet Construction Set aka PCS</a> to write a program I call the <a href=http://pktdbg.sf.net>Packet Debugger (pdb)</a>. All of this is written in Python and available under a BSD license. The blurb from the pdb web page gives you [...]

This post points to two files, PARA, my kernel configuration file, and loader.conf which sets the kernel’s HZ back to 100. The default hz in FreeBSD CURRENT (will be 7.0) is now 1000 which is too high for Parallels to keep up with and causes it to eat about 15% of the CPU on [...]

 As some of you may, or may not know, I tend to do a lot of my kernel development in virtual machines, such as <a href=www.vmware.com>VMware</a> and now <a href=http://www.parallels.com/>Parallels</a> on my MacBook. I find that virtual machines make the perfect test lab because you can easily create, copy, store, backup and delete them. [...]