Re: penalty for double buffering

[Steven Jenkins <steven jenkins ieee org>]

Russell Shaw wrote:
> Make a timer with timer=g_timer_new(), then put things like 
> t0=g_timer_elapsed(timer)
> everywhere in the code, then have: g_printf("Time: %f %f 
> %f\n",t3-t2,t2-t1,t1-t0)
> in the 50Hz loop somewhere.

I know the performance hit is in gdk_window_invalidate_rect(), I just 
don't know why it's as big as it is.

Steve