Re: gEDA-user: PCB is extremely slow

[Karel Kulhavy <clock@xxxxxxxxxxxxx>]

On Fri, Oct 07, 2005 at 06:49:43PM -0400, Randall Nortman wrote:
> > >>I am editing Ronja Twister
> > >>http://ronja.twibright.com/schematics/twister.pcb
> > >>And it sometimes takes 30 seconds to redraw (during which PCB doesn't
> > >>react). My machine has 1500MHz CPU and 0.5GB of RAM and nothing
> > >>CPU intensive is running there besides.
> 
> I noticed, after upgrading from an older non-GTK version to a CVS
> snapshot from several weeks ago (using GTK+), that sometimes PCB gets
> into a funny state where redraws are impossibly slow, as you describe.
> After some experimentation I determined that this is influenced by
> *other windows* being open on the same desktop, in particular other
> maximized windows.  In my case, gschem and acroread were the common
> culprits, but I don't know if the phenomenon is limited to them.  It
> may be a quirk of my window manager (xfwm4).  I can't reliably
> reproduce it, but when it happens, I can fix it by closing other
> windows until the problem goes away.  You might think it's a system
> memory problem, but I am not swapping when this happens.  PCB will
> briefly consume 100% of CPU during any redraws, but otherwise the CPU
> is mostly idle.  Since I can't reproduce it on demand, I didn't think
> it was worth filing a bug report, but if others are experiencing the
> same problem, perhaps it is worth tracking down.

Yes it's actually experiencing weird states instead of doing that
consistently.

CL<