Re: Performance of many widgets

[Brian Phelps <lm317t@xxxxxxxxx>]

If anything the graphics card hardware may be amplifying inefficiencies in how the 40-50 widgets are updated.  x11perf putrect says the hardware is plenty fast enough to update the same area in way less than a 1/10 of a sec, like 1/100

x11perf putrect confirms this with its results, updating the same area in a fraction of the time my gtk toggles do.  I'm pretty sure the graphics hardware can handle updating this area plenty fast enough.

I take it there is no way to practical way to fix this by creating some custom widget?

Also yes I have tried turning off double buffering.  It makes no difference.

On Tue, Dec 21, 2010 at 7:12 PM, Vikram Ambrose <noel.ambrose@xxxxxxxxx> wrote:

On 12/21/2010 06:15 PM, jcupitt@xxxxxxxxx wrote:

Next,investigate your graphics driver and see if there is anything broken.

In my experience a lot has to do with the drivers. For example, doing something like gtk_tree_view_set_grid_lines() causes major (100x fold) slow downs for me using ATi hardware (open source drivers). But using Nvidia hardware (proprietary drivers), there is no performance difference.


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