Re: Embedded Gtk+ system moving to 2.14

[Emmanuele Bassi <ebassi gmail com>]

On Mon, 2009-02-16 at 12:09 -0800, John Boncek wrote:
> Attempting to move several large (multi-hundred compile units) C++
> application programs of an embedded ARM / Linux 2.4 system from Gtk+ 2.2.4
> to Gtk+ 2.14.  We are noting severe performance degradation (2-3 times) in
> screen transitions and a definite overall sluggishness to the systems. 
> There are no profiling tools available on ARM / Linux 2.4 that we have been
> able to find despite a lot of online investigation.

to quote from memory: "gee, could you vague that up a little bit?" :-)

what windowing system are you using? directfb? x11?

what kind of themeing are you using?

> Does anyone know of particular parts of Gtk+ that have become significantly
> slower across this rather large jump in versions?  Any pointers on where to
> look in our systems would be appreciated.

between 2.2 and 2.14 there are at least 5 years worth of changes.

what version of cairo are you using? can you profile things using massif
(memory usage) and oprofile (cpu usage)?

ciao,
 Emmanuele.

-- 
Emmanuele Bassi,
W: http://www.emmanuelebassi.net
B: http://log.emmanuelebassi.net