empathy is using lot of cpu when opening the window chat

I rolled back to "empathy/natty" only (plus the few dependencies) and that appears to avoid the problem, with the rest of the system fully oneric. Here's what APT said about downgrading to something that works.

Removing nautilus-sendto-empathy ...

Selecting previously deselected package libfolks22.
Unpacking libfolks22 (from .../libfolks22_0.4.2-2_i386.deb) ...

Selecting previously deselected package libfolks-telepathy22.
Unpacking libfolks-telepathy22 (from .../libfolks-telepathy22_0.4.2-0ubuntu1_i386.deb) ...

Selecting previously deselected package libgcr0.
Unpacking libgcr0 (from .../libgcr0_2.92.92.is.2.32.1-0ubuntu2_i386.deb) ...

dpkg: warning: downgrading empathy from 3.1.2.1-1ubuntu1 to 2.34.0-0ubuntu3.1.
Preparing to replace empathy 3.1.2.1-1ubuntu1 (using .../empathy_2.34.0-0ubuntu3.1_i386.deb) ...
Unpacking replacement empathy ...

dpkg: warning: downgrading empathy-common from 3.1.2.1-1ubuntu1 to 2.34.0-0ubuntu3.1.
Preparing to replace empathy-common 3.1.2.1-1ubuntu1 (using .../empathy-common_2.34.0-0ubuntu3.1_all.deb) ...

Unlike in the upstream bug description, my log is not flooded.

After talking to Guillaume it could be a gtk 3.1 regression

This bug was fixed in the package gtk+3.0 - 3.1.6-0ubuntu4

---------------
gtk+3.0 (3.1.6-0ubuntu4) oneiric; urgency=low

  * debian/patches/076_invalidate_order_on_changes.patch
    - Invalidate order on changes (LP: #798377)
 -- Ken VanDine <email address hidden> Wed, 29 Jun 2011 10:26:26 +0100

It's still slow for me.

Binoy, that is not enough information. If you can show that empathy-chat is using more than a few percent of CPU, then this bug might be reopened. Be specific. "It" and "slow" is not enough.

I confirm the bug is back in Trusty when using gnome-online-accounts with a GMail account. And, by the way, the same bug occurs with gnome-contacts too. Both workd perfectly a few weeks ago, so something must have broken very recently.

Tasks: 208 total, 4 running, 204 sleeping, 0 stopped, 0 zombie
%Cpu(s): 58,3 us, 5,8 sy, 0,4 ni, 33,4 id, 1,7 wa, 0,0 hi, 0,5 si, 0,0 st
KiB Mem: 3884928 total, 2837084 used, 1047844 free, 80588 buffers
KiB Swap: 8388604 total, 181340 used, 8207264 free. 1221000 cached Mem

  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
29634 julien 20 0 487608 119572 63156 R 83,9 3,1 0:12.47 empathy-ch+
 4050 julien 20 0 443464 59092 33484 R 73,5 1,5 1:27.30 empathy
 3598 julien 20 0 566412 138292 48756 S 5,2 3,6 14:19.65 gnome-shell
29675 julien 20 0 7084 2724 2328 R 5,2 0,1 0:00.02 top
    1 root 20 0 4424 2268 1268 S 0,0 0,1 0:06.56 init
    2 root 20 0 0 0 0 S 0,0 0,0 0:00.01 kthreadd

OK, I found the culprit: I had thousands of bogus gmail contacts (created by a bug in thunderbird's google contacts addon). I deleted them and now everything is fine. Sorry!