Re: gtk performance testing [was Re: GNOME 2.11/2.12 targeting GTK+ 2.8 (ie cairo based)]

[Luis Villa <luis villa gmail com>]

On 6/9/05, Luis Villa <luis villa gmail com> wrote:
> On 6/9/05, Luis Villa <luis villa gmail com> wrote:
> > On 6/9/05, Jon K Hellan <hellan acm org> wrote:
> > > On Thu, 2005-06-09 at 14:39 +0100, Mark McLoughlin wrote:
> > > >       If we're talking about performance/stability in the context of whether
> > > > GNOME 2.12 should use GTK+ 2.8, we're effectively saying "I think the
> > > > GTK+ team might ship a unstable or unacceptably slow 2.8.0 release;
> > > > GNOME shouldn't commit to using GTK+ 2.8 yet". I would hope that we
> > > > would have more confidence in the judgement of the GTK+ team than that.
> > >
> > > Crashes and performance are very different types of problem. Crashes get
> > > fixed once they can be reproduced. Fixing bad performance can take a
> > > long time.
> > >
> > > Well, I haven't tested gtk2.7 since just after Cairo got added, so I
> > > can't tell whether there is a performance problem. Has anybody got
> > > numbers?
> >
> > I haven't seen this announced on gtk-devel or here, so:
> >
> > http://gtkperf.sourceforge.net/
> >
> > Apparently this is a test tool to test gtk performance. Would be great
> > to have someone test 2.7 with it.
> 
> Went ahead and did it myself. TextView is brutally slower (300-400%),
> some other things are 25-30% slower, and some things actually get
> faster. Disclaimer: I'm pretty sure I did this right and I'm linking
> against the right stuff, but these numbers should be confirmed by an
> expert, and I can't speak to the validity of the tool's measurements
> itself, except to note that scrolling in a textview area is *visibly*
> slower.

New third column is HEAD + glitz, with an x31's ATI card. Still with
Mist. Performance is slightly slower than HEAD just about everywhere,
actually. I'll probably do an N=100 run with default theme +
2.6/HEAD/HEAD + glitz sometime later. Have to figure out how to
automate this. :)
 
The data:
 
GtkEntry - time:  0.43 0.76 0.89
GtkComboBox - time: 12.61 15.30 15.11
GtkComboBoxEntry - time: 11.95 13.25 13.36
GtkSpinButton - time:  0.65 1.09 1.17 
GtkProgressBar - time:  0.53 0.87 0.99
GtkToggleButton - time:  2.17 4.42 4.47
GtkCheckButton - time:  3.41 3.27 3.37
GtkRadioButton - time:  4.29 3.96 4.10
GtkTextView - Add text - time: 91.88 268.67 311.53
GtkTextView - Scroll - time: 43.17 190.83 229.29
GtkDrawingArea - Lines - time:  8.40 8.48 8.39
GtkDrawingArea - Circles - time: 13.38 13.58 13.42
GtkDrawingArea - Text - time: 48.70 29.99 30.34
GtkDrawingArea - Pixbufs - time: 11.71 11.46 11.16
 ---
Total time: 253.31 565.94 647.60