On 9/22/07, Roger Dingledine <[EMAIL PROTECTED]> wrote: > Once upon a time, the value of "10 minutes" was actually more like 1 > minute. You see, the shorter it is, the fewer actions from the user are > linkable with each other based on being in the same circuit. But Tor > server operaters complained they were using 100% cpu because they were > constantly handling new circuit creation requests. So we moved it back to > 10 minutes -- bad for user security, but necessary to keep things working. > > If the user started churning through circuits at five times the current > rate, we may end up forced to move the "10 minute" value back even farther > to compensate, resulting in even more user connections becoming linkable. > Why does new circuit creation use up so much CPU? Are you spawning a new thread for each circuit, or something? If so, maybe there's a way to be more efficient instead?
I know, I know, I shouldn't complain if I'm not going to offer code. So don't consider this a complaint, just a question.
