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The Postfix on SuSE Linux 7.0 (i386) program
<mfvwm_at_lifebits.de>: unknown user: "mfvwm"
attached mail follows:
On Sun, Mar 17, 2002 at 03:02:05PM -0800, John Smith wrote:
> On Sun, Mar 17, 2002 at 07:02:43PM +0100, Dominik Vogt wrote:
> > On Sun, Mar 17, 2002 at 02:38:05AM -0800, John Smith wrote:
> > > Okay, so now that I'm using 2.4.6, I definitely see opaque/rubber band window
> > > moving faster than the previous release. As a user with a cluttered desktop,
> > > sometimes opaque window moving slows down quite a bit (but still a lot better
> > > than other WMs I must say). However, the fastest opaque moving I have seen
> > > >from any window manager is by far in mwm.
> >
> > In general, mwm will probably always be faster because it has
> > almost no features. Consider what fvwm does when moving a window:
> >
> > - Move the window
> > - Handle keyboard events.
> > - Handle lots of funny modifier key combinations.
> > - Use the SnapGrid
> > - Uses SnapAttraction
> > - Uses EdgeResistance
> > - Handles paging
> >
> > Some of this requires communication with the X server which is the
> > main time consuming factor (even on a local machine). On the
> > other hand, as far as I know, mwm does this:
> >
> > - Move the window
> >
> > That's not an excuse, but it partially explains things.
> >
> > > I took a bit of time and wanted to try opaque window moving, and I was
> > > surprised. I had like 30 different applications open on one screen (like
> > > xdaliclock, xclock, xbiff, xterm, xmessage etc), and moving windows with lots
> > > of graphics over top of all these other programs showed no signs of slowing
> > > down the movement. The same testing done on fvwm2 showed noticeable slow
> > > down.
> >
> > Fvwm does extensive redrawing of the window frames (unless you
> > enable the SaveUnder style that is). This is exactly what I'm
> > working at right now. When I'm done, opaque motion will be
> > lightning fast (at least as far as fvwm is concerned - I can't do
> > anything about applications that redraw a lot).
> >
>
> Ok, I understand that. Applications do their own redrawing. But are you
> saying that redrawing the window borders is the *ONLY* bottleneck that fvwm
> has with opaque window moving?
At least it's the current bottleneck. Further improvements can be
made by disabling the features listed above, e.g.
SnapGrid 0 0
SnapAttraction Off
EdgeResistance 10000 10000
(I'm not sure the syntax is right).
Bye
Dominik ^_^ ^_^
--
Dominik Vogt, email: d.vogt_at_lifebits.de
LifeBits Aktiengesellschaft, Albrechtstr. 9, D-72072 Tuebingen
fon: ++49 (0) 7071/7965-0, fax: ++49 (0) 7071/7965-20
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Received on Mon Mar 18 2002 - 03:58:49 GMT