[tor-bugs] #14177 [Torflow]: bwauth spends some 40 minutes "updating rank history". Every hour.

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#14177: bwauth spends some 40 minutes "updating rank history". Every hour.
-------------------------+--------------------
     Reporter:  ln5      |      Owner:  aagbsn
         Type:  defect   |     Status:  new
     Priority:  major    |  Milestone:
    Component:  Torflow  |    Version:
   Resolution:           |   Keywords:
Actual Points:           |  Parent ID:
       Points:           |
-------------------------+--------------------

Comment (by cypherpunks):

 I am also seeing significant time spent updating rank history:

 grep "Consensus change... Updating rank history"  data/scanner.1/bw.log |
 grep "Feb 03" | wc -l
 113

 {{{
 import sys
 import datetime
 tdz = []
 f = open(sys.argv[1])
 while f:
         line = f.readline()
         if "Consensus change... Updating rank history" in line:
                 n = f.readline()
                 s = [datetime.datetime.strptime(y.split("]")[0][5:],"%a %b
 %d %H:%M:%S %Y") for y in [line,n]]
                 td = s[1]-s[0]
                 tdz.append(td.total_seconds())
                 print sum(tdz)/len(tdz)
 print "total %s" % sum(tdz)
 f.close()
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/14177#comment:5>
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