Horrible load factor

[NoOp]

On 12/06/2012 04:17 AM, Liam Proven wrote:
> On 6 December 2012 00:28, NoOp <glgxg at sbcglobal.net> wrote:
>>
>> My guess is that you are experiencing this:
>> <https://bugs.launchpad.net/ubuntu/+source/apt-xapian-index/+bug/363695?comments=all>
>> [update-apt-xapian-index uses too much CPU]
> 
> Why do you blame apt-xapian-index when that isn't in the list of top
> programs that the OP gave?
> 

<quote>
Hi All,
on Ubuntu 12.10, I clicked on Ubuntu Software Center
in the apps menu bar on the left, and all of a sudden
I could get almost no response from the system.
</quote>

Typically high xorg cpu usage can be caused by client or client-side
services:
<https://wiki.ubuntu.com/X/Troubleshooting/HighCPU>
<https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/294972>
[MASTER: xorg high cpu usage, general system sluggishness]

In this case, update-software and software-center are running.
software-center/update-software goes out and calls apt-xapian-index.
This has been known to cause high cpu usage by xorg in the past:
<https://bugs.launchpad.net/ubuntu/+source/synaptic/+bug/355355>
[Update Manager causes high Xorg CPU usage when checking for updates]

$ apt-cache rdepends apt-xapian-index
apt-xapian-index
Reverse Depends:
  software-center
  aptitude
  synaptic
  packagekit-backend-aptcc
  packagekit-backend-apt
  goplay
  fuss-launcher
  ept-cache
  adept
  software-center
  python-apt
  muon-installer
  muon
  aptitude

So my _guess_ is that apt-xapian-index(db) is likely to be the
underlying issue.