[Qt-interest] Application consuming 60% of CPU usage ..

[Colin S. Miller]

Sean Harmer wrote:
> Hi,
> 
> On Tuesday 20 Oct 2009 13:39:03 Chandru... wrote:
>> the Xorg is consuming 60% of the CPU usage ... my application  its taking
>> only 6%....
> 
> However, I am guessing that the large Xorg CPU usage is caused by many xlib 
> painting calls resulting from your graphics items. So profiling your app is 
> still the way to go. Most likely culprit is some slow code paths in your 
> custom graphics item paint() functions. You may also want to investigate 
> QGraphicsItem::setCacheMode().

Chandru, Sean
the xtrace package will decode all the X requests that an application makes.

It's available from
http://packages.debian.org/search?keywords=xtrace

Unless you are running Debian, you probably want the source code from Lenny
and built it yourself.

HTH,
Colin S. Miller