[tor-bugs] #24716 [Core Tor/DirAuth]: Try cranking up cbttestfreq consensus param, to see if it helps the current overload

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#24716: Try cranking up cbttestfreq consensus param, to see if it helps the current
overload
------------------------------+------------------------------------
 Reporter:  arma              |          Owner:  (none)
     Type:  task              |         Status:  new
 Priority:  Medium            |      Milestone:  Tor: 0.3.3.x-final
Component:  Core Tor/DirAuth  |        Version:
 Severity:  Normal            |     Resolution:
 Keywords:                    |  Actual Points:
Parent ID:                    |         Points:
 Reviewer:                    |        Sponsor:
------------------------------+------------------------------------

Comment (by dgoulet):

 My fast relay (`Truie`) got from Dec 28th to Jan 5th a pretty important
 load on NTor. From 500k to 1M depending on the time of day.

 {{{
 Jan 03 22:51:02.262 [notice] Circuit handshake stats since last time:
 397262/397262 TAP, 910632/910632 NTor.
 }}}

 Everything started to go down on Jan 5th past 20:00:00 UTC. For now, the
 traffic going through it is almost double what it used to see but the
 connections are stable with:

 {{{
 Jan 08 15:21:02.670 [notice] Circuit handshake stats since last time:
 23591/23597 TAP, 334149/334368 NTor.
 Jan 08 15:51:02.709 [notice] Circuit handshake stats since last time:
 12063/12063 TAP, 341922/341922 NTor.
 Jan 08 16:21:02.718 [notice] Circuit handshake stats since last time:
 23751/23751 TAP, 335790/335790 NTor.
 Jan 08 16:51:02.478 [notice] Circuit handshake stats since last time:
 21637/21637 TAP, 357263/357263 NTor.
 Jan 08 17:21:02.557 [notice] Circuit handshake stats since last time:
 57312/57312 TAP, 343390/343390 NTor.
 }}}

 Not only NTor connections went down but TAP also went down considerably.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24716#comment:11>
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