Re: [tor-project] Turning on timing obfuscation (iat-mode=1) for some default bridges

[David Fifield <david@xxxxxxxxxxxxxxx>]

On Tue, Nov 15, 2016 at 11:33:14AM +0100, Linus Nordberg wrote:
> ndnop3 is now running with iat-mode=1.
> 
> ndnop5 is now running with iat-mode=2. I will keep an eye on CPU usage
> as I understand this is expensive.

Thanks for making this change. I opened a ticket to make the matching
change in Tor Browser in https://bugs.torproject.org/20837#comment:1.

I wouldn't expect iat-mode=2 to use a lot of CPU. It's expensive in the
sense that it "wastes" bandwidth by adding extra padding and delays.
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