according to trickle's man page, http://linux.die.net/man/1/trickle i can limit the download speed of a process, e.g.
trickle -u 10 -d 20 ncftp
to Launch ncftp(1) limiting its upload capacity to 10 KB/s, and download capacity at 20 KB/s.
how would I go about limiting
Edit: For those of you asking why I asked such an obvious question, I tried
trickle -u 10 -d 20 firefox
and I'm getting an error
trickle: Could not reach trickled, working independently: No such file or directory
firefox opens right after, but is definitely not rate limited...