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Re: [tor-talk] Orbot Data Overhead

Hi Roger,

I looked at traffic from the latest Orbot (2.3.10-alpha) vs an older
release (2.2.14-alpha) and found that idle usage was reduced. The latest
Orbot used ~65 bytes/s while the older version used ~91 bytes/sec. An idle
data reduction of around 30%. Does that sound reasonable?

That blog post now has incorrect statistics so I will update it to reflect
the lower usage.



On Sat, Jun 23, 2012 at 7:04 PM, Roger Dingledine <arma@xxxxxxx> wrote:

> On Wed, Jun 20, 2012 at 05:13:16PM -0400, Patrick B wrote:
> > I made a blog post <
> https://guardianproject.info/2012/06/20/orbot-data-tax/> on
> > the Guardian site about the data cost incurred by Orbot usage. It
> generally
> > seems quite manageable for most use cases. Running in the backround 24/7
> > for 30 days does incur ~200MB of idle usage which would be significant
> for
> > mobile users with smaller data plans. Check out the post for more
> details.
> > I'm also curious if anyone has taken similar measurements with Tor to
> > compare the results.
> Hi Patrick,
> You should compare Tor 0.2.2.x with Tor 0.2.3.x in terms of idle bandwidth
> load. Tor 0.2.3.x uses microdescriptors rather than descriptors for
> directory information, so it should reduce the daily amount of stuff
> your Tor has to fetch to keep informed about what relays are available.
> https://gitweb.torproject.org/torspec.git/blob/HEAD:/proposals/158-microdescriptors.txt
> Also, if your Tor stays idle for long periods of time (like, days),
> you might find https://trac.torproject.org/projects/tor/ticket/2149
> interesting (not yet implemented).
> --Roger
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