If you do local web development, sometimes you need to check to see how fast your site works/downloads. As you're local to the site, it's very fast. This is where ipfw can help.
ipfw can be used to limit bandwith on specific ports:
sudo ipfw pipe 1 config bw 15KByte/s
creates a pipe that only allows up to 15KB/s to go through.
sudo ipfw add 1 pipe 1 src-port 80
will attach that pipe to the outgoing traffic on port 80, effectively limiting the outgoing traffic of the web server.
sudo ipfw delete 1
will remove the pipe from the port.
Today, I replaced my system drive in my Mac Pro with a Kingston Solid State Drive. The XBench stats show the drive to be twice as fast as the drive it replaced. Yes, this now means my system drive has a lower capacity, but that doesn't matter. All my stuff is saved out to a fileserver anyway.
The verdict - love the speed. Opening Photoshop now only takes 2 seconds - that's fast!
By moving my blog over to Posterous I'm hoping that I'm going to update it more often. Probably not but might as well try.