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[Bug 458453] Re: beam.smp uses lots of CPU on desktopcouch contacts lookup

 

John, I'm sorry it annoyed you.  The per-user couchdb server is only
started on demand from some already-running program (evolution asked for
it, perhaps?), and thereafter it should (and indeed does for most
people) use almost no CPU except for deep DB searches.

I'm sorry to say, when it does happen, we don't know the cause of the
erlang runtime process eating so much CPU, still.  It's not easily
reproducible or debuggable, and we thought the problem had gone away in
the 11.04 released version.

If I can find steps to reproduce the problem, I'll update 11.04.

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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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