[tor-bugs] #25192 [Core Tor/Tor]: change of bandwidth accounting intveral from 4 to 24 hours results in unreasonable memory consumption

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#25192: change of bandwidth accounting intveral from 4 to 24 hours results in
unreasonable memory consumption
---------------------------------------------+-----------------------------
 Reporter:  starlight                        |          Owner:  (none)
     Type:  defect                           |         Status:  new
 Priority:  Medium                           |      Milestone:  Tor:
                                             |  0.3.3.x-final
Component:  Core Tor/Tor                     |        Version:  Tor:
                                             |  0.3.2.9
 Severity:  Normal                           |     Resolution:
 Keywords:  regression, memory, performance  |  Actual Points:
Parent ID:                                   |         Points:
 Reviewer:                                   |        Sponsor:
---------------------------------------------+-----------------------------

Comment (by starlight):

 I made it up in a moment of vein-popping frustration over the inexorable
 growth of the relay's memory footprint.  Seemed like the idea but I didn't
 check.

 Have been seeing 50mb per day of additional memory consumption from four-
 days onward (now at 8 days).  Turned of *all* statistics yesterday and it
 may have stopped, having increased by only 2MB since.  Seems that the
 attacker is trying something different:

 {{{
 21364 v4 connections
 51409 v4 connections
 85659 v4 connections
 113656 v4 connections
 133497 v4 connections
 175166 v4 connections
 214565 v4 connections
 246361 v4 connections
 265052 v4 connections
 289206 v4 connections
 313442 v4 connections
 338396 v4 connections
 361708 v4 connections
 403041 v4 connections
 438701 v4 connections
 471297 v4 connections
 495059 v4 connections
 529962 v4 connections
 565843 v4 connections
 597165 v4 connections
 619788 v4 connections
 649338 v4 connections
 679997 v4 connections
 710489 v4 connections
 732212 v4 connections
 756353 v4 connections
 785527 v4 connections
 }}}

 and perhaps this is causing memory growth related to statistics.  Didn't
 look.  Can't give this any more time.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25192#comment:4>
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