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Re: [tor-bugs] #32720 [Core Tor/Tor]: How much bandwidth does a user use to bootstrap and maintain dir info? How has that changed over time?
#32720: How much bandwidth does a user use to bootstrap and maintain dir info? How
has that changed over time?
--------------------------+--------------------------
Reporter: arma | Owner: nickm
Type: task | Status: accepted
Priority: Medium | Milestone:
Component: Core Tor/Tor | Version:
Severity: Normal | Resolution:
Keywords: | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
--------------------------+--------------------------
Comment (by nickm):
I had an early crash for unrelated reasons, but I think these results seem
reasonably straightforward.
Experiment 1: (master. Bootstrapped, then updated 6 times.)
{{{
Dec 12 18:29:22.000 [notice] Heartbeat: Tor's uptime is 6:10 hours, with 5
circuits open. I've sent 1.63 MB and received 4.01 MB.
Dec 12 18:29:22.000 [notice] While bootstrapping, fetched this many bytes:
Dec 12 18:29:22.000 [notice] 516749 (consensus network-status fetch)
Dec 12 18:29:22.000 [notice] 13402 (authority cert fetch)
Dec 12 18:29:22.000 [notice] 1824780 (microdescriptor fetch)
Dec 12 18:29:22.000 [notice] While not bootsrapping, fetched this many
bytes:
Dec 12 18:29:22.000 [notice] 212877 (consensus network-status fetch)
Dec 12 18:29:22.000 [notice] 108170 (microdescriptor fetch)
}}}
Experiment 2: (master, UseMicrodescriptors 0. Bootstrapped, then updated 6
times.)
{{{
Dec 12 18:37:22.000 [notice] Heartbeat: Tor's uptime is 5:50 hours, with 5
circuits open. I've sent 1.94 MB and received 13.02 MB.
Dec 12 18:37:22.000 [notice] While bootstrapping, fetched this many bytes:
Dec 12 18:37:22.000 [notice] 7725566 (server descriptor fetch)
Dec 12 18:37:22.000 [notice] 445783 (consensus network-status fetch)
Dec 12 18:37:22.000 [notice] 13266 (authority cert fetch)
Dec 12 18:37:22.000 [notice] While not bootsrapping, fetched this many
bytes:
Dec 12 18:37:22.000 [notice] 3209765 (server descriptor fetch)
Dec 12 18:37:22.000 [notice] 255740 (consensus network-status fetch)
}}}
Experiment 3 (no diffs. Bootstrapped, then updated 5 times.):
{{{
Dec 12 18:34:22.000 [notice] Heartbeat: Tor's uptime is 5:20 hours, with 5
circuits open. I've sent 1.56 MB and received 6.34 MB.
Dec 12 18:34:22.000 [notice] While bootstrapping, fetched this many bytes:
Dec 12 18:34:22.000 [notice] 517073 (consensus network-status fetch)
Dec 12 18:34:22.000 [notice] 13266 (authority cert fetch)
Dec 12 18:34:22.000 [notice] 1832842 (microdescriptor fetch)
Dec 12 18:34:22.000 [notice] While not bootsrapping, fetched this many
bytes:
Dec 12 18:34:22.000 [notice] 2638812 (consensus network-status fetch)
Dec 12 18:34:22.000 [notice] 94761 (microdescriptor fetch)
}}}
Experiment 4 (no zstd or lzma2, only zlib. Bootstrapped, then updated 5
times):
{{{
Dec 12 18:37:56.000 [notice] Heartbeat: Tor's uptime is 4:40 hours, with 5
circuits open. I've sent 1.40 MB and received 3.78 MB.
Dec 12 18:37:56.000 [notice] While bootstrapping, fetched this many bytes:
Dec 12 18:37:56.000 [notice] 572325 (consensus network-status fetch)
Dec 12 18:37:56.000 [notice] 13110 (authority cert fetch)
Dec 12 18:37:56.000 [notice] 1836661 (microdescriptor fetch)
Dec 12 18:37:56.000 [notice] While not bootsrapping, fetched this many
bytes:
Dec 12 18:37:56.000 [notice] 200259 (consensus network-status fetch)
Dec 12 18:37:56.000 [notice] 84658 (microdescriptor fetch)
}}}
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32720#comment:6>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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