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[John Gilmore <458453@xxxxxxxxxxxxxxxxxx>]

It was apparently started by gwibber (perhaps because I briefly opened
the menu in the upper right corner of the Ubuntu Natty screen, which
seems to be a gwibber thing; I do not use social networking).

One possible problem is that the Erlang runtime is started with the -heart option, so it burns time whether or not any demands are placed on it.  Is there a reason that the "desktop couchdb" instance needs a heartbeat?  The heart process wakes up every 5
seconds, forever.  And it demands that the main process wake up as frequently, too.  This means that the CPU can never stop running for more than 5 seconds, even when the machine is "completely idle".

The main process seems to wake up every 10 minutes and write a few lines
to the logfiles.  There is no apparent reason for this activity.  I have
attached my logfile.

** Attachment added: "$HOME/.cache/desktop-couch/desktop-couchdb.log.1"
   https://bugs.launchpad.net/ubuntu/+source/erlang/+bug/458453/+attachment/2177239/+files/desktop-couchdb.log.1

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https://bugs.launchpad.net/bugs/458453

Title:
  beam.smp uses lots of CPU on desktopcouch contacts lookup

Status in Desktop CouchDB:
  Incomplete
Status in Evolution CouchDB backend:
  Fix Released
Status in Gwibber:
  Won't Fix
Status in “desktopcouch” package in Ubuntu:
  Incomplete
Status in “erlang” package in Ubuntu:
  Invalid
Status in “desktopcouch” source package in Lucid:
  Incomplete
Status in “erlang” source package in Lucid:
  Invalid
Status in Baltix GNU/Linux:
  New

Bug description:
  Binary package hint: erlang

  i'm having very slow automatic contacts lookup under karmic using
  evolution 2.28.1-oubuntu1, erlang-base 1:13.b.1-dfsg-2ubuntu1, and
  desktopcouch 0.4.4-0ubuntu1.  CPU usage by beam.smp spikes up to about
  80% and stays there for multiple seconds -- i'd say as long 20-30 --
  before allowing input to continue.  it renders the automatic contact
  lookup actually counterproductive, not helpful.

  would love to help squash thisbug, please advice where i should look
  to try and help.

  matt

  ProblemType: Bug
  Architecture: i386
  Date: Thu Oct 22 15:02:41 2009
  DistroRelease: Ubuntu 9.10
  Package: erlang-base 1:13.b.1-dfsg-2ubuntu1
  ProcEnviron:
   LANGUAGE=en_CA.UTF-8
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
  SourcePackage: erlang
  Uname: Linux 2.6.31-14-generic i686

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