On Jun 29, 2007, at 10:40 PM, Moinak Ghosh wrote:
Krister Joas wrote:
On Jun 29, 2007, at 1:00 AM, Dirk Wetter wrote:
Am 28.06.2007 13:08, Peter Howkins schrieb:
Girts,
this may be of interest to you. I've recently been in
discussion with the Open Group about releasing CDE and Motif
under a fully open license. TOG have been quite positive about
the idea, but there are still some sticking points.
for what? That's 10+ years too late ;-)
Perhaps, but during those ten years GNOME is still way behind CDE
in terms of performance. For example, switching between virtual
desktops in GNOME is abysmally slow. On a 500 MHz SunBlade 100
running CDE switching between virtual desktop is almost
instantaneous. Doing the same on a 2GHz AMD box running GNOME I
have to endure watching each and every window getting redrawn one
by one. It's a joke.
Looks like you have a problem. GNOME is not this bad, no way!
Have you tried CDE
on the same machine ? What is your display card ?
Let me summarise my experience so far.
Sun Blade 100, built in video
CDE is slow but usable
JDS is atrocious, completely unusable
White box, AMD 2GHz, generic NVidia video card (GeForce 6200)
CDE works great
JDS is noticeably slow to a point where I can see the windows
getting redrawn but I admit it was not as bad as I remembered it
Sun Ultra 20, Sun Quadro NVS 285 video card
CDE works great
JDS works great
Sun Blade 2000, XVR-100
CDE works great
JDS painfully slow, almost unusable
It indeed looks like a good video card is necessary but I think that
proves my point. On identical hardware CDE tends to be a lot faster
unless the hardware provides enough headroom. The most striking
difference, a difference that is clearly visible when using slower
hardware like Sun Blade 100, is the way windows are redrawn after
switching desktops. In CDE, all windows disappear together and the
windows of the next virtual desktop appears in unison . In JDS
windows disappear one by one and then the windows of the new desktop
appear one by one.
One possibility could be that JDS tends to have a busier background,
i.e. not optimised for minimum use of resources, where the background
in CDE is made up of ideally sized bitmaps. That could also explain
why it takes a noticeable amount of time when closing a window in JDS
before it actually disappears. In CDE the window disappears
instantly. It might be possible to tweak JDS to be faster by
choosing a less resource hungry theme.
It's hard to describe my observations in words but the net result is
that JDS feels slow on the same hardware compared to CDE. It also
doesn't help that gnome-terminal is slow as a dog compared to xterm...
Krister
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