[THIN] Re: ICA alternative?
- From: "Steve Greenberg" <steveg@xxxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Fri, 21 May 2004 11:19:29 -0700
Hi Hector,=20
I agree that X is faster for rich content on a LAN than ICA. As I am =
sure
you agree, it would have been better if Citrix had chosen to keep UIS
available.
However, since X is not an option anymore we must work with ICA and the
problem is that many of the newer graphically intensive apps rely on =
local
video hardware accelaration and/or things like OPEN GL. ICA can support
these extensions to some degree, but by the nature of the architecture =
these
grpahics are rendered on the Citrix server using the server CPU. As a =
result
I believe the best way to improve the graphics performance is to use =
faster
CPU's on the server, take advantage of HT, etc.
One approach we did recently for a major customer was to contract =
Neoware to
include OPEN GL in their LINUX EON terminal image. However, this only =
works
for OPEN GL apps that are able to run over X- and we are back to the =
same
problem!
What level of CPU are you running on now?=20
Steve Greenberg
Thin Client Computing
34522 N. Scottsdale Rd. suite D8453
Scottsdale, AZ 85262
(602) 432-8649
(602) 296-0411 fax=20
steveg@xxxxxxxxxxxxxx
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On =
Behalf
Of Minero Hector B DLVA
Sent: Friday, May 21, 2004 6:11 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: ICA alternative?
I have not heard about Direct ICA.
Assuming we have the best possible Video card available for Neowares and =
a
100 Mb pipe. Is there any fine tuning I need to do on the server or =
client
to make sure as much bandwidth is used as necessary? Or is this preety =
much
the default?
We used the X11 protocol on NCD terminals for a long time and that =
protocol
seemed a lot faster than ICA.
Fat clients are certainly not an option for us. I just need to make I =
am
doing everything to display graphics on the Thin clients as best as
possible.
Thank you very much for your help.
_________________________________
Hector Minero
NSWCDD Code K55
Ph: (540)653-8859
Fax:(540)653-8575
-----Original Message-----
From: Mark Cook [mailto:mc@xxxxxxxxxx]
Sent: Friday, May 21, 2004 6:05 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: ICA alternative?
Hector,
ICA is a burstable protocol, in other words it will use the available
bandwidth as and when. The ICA command stream is restricted to =
something
like 20k ~ but other channels eg. Bitmap cache etc. are burstable.
However, pushing graphics down a network pipe will always be slower than
displaying on the end device. The best solution I can think of and this =
is
assuming Citrix still do it is Direct ICA but havn't seen or heard =
anything
about this in quite some time - perhaps other listee's can shed some =
light
on it and whether it's still available ??
DirectICA was designed as a special NIC for the server with dedicated =
100Mb
connections to each terminal.....
Mark
-----Original Message-----
From: Minero Hector B DLVA [mailto:MineroHB@xxxxxxxxxxxxx]=20
Sent: 20 May 2004 21:16
To: Thin (E-mail)
Subject: [THIN] ICA alternative?
Hi all, as far as I know ICA was designed to use the least amount of =
Network
bandwidth possible. This is great for low bandwidth networks, but not =
so
good for LANS. We currently have 100Mb to the desktop and are looking =
to
provide graphics intensive applications through Terminal Servers,
applications such as Matlab and other simulation pacakages. We are using
Neoware thin clients are very happy with them. However, the =
simulations do
not display as fast as we expect, they seem very slow. =20
We do have a lot of bandwidth available, and system resources are
underutilized. Is there an ICA setting I need to set or tweak to allow =
the
ICA protocol to use as much bandwidth as necessary? If not, is there an
alternative product/solution for my requirement of displaying graphics
intensive programs on Thin CLients?
Thanks,
_________________________________
Hector Minero
NSWCDD Code K55
Ph: (540)653-8859
Fax:(540)653-8575
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**********************************************************
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For Archives, to Unsubscribe, Subscribe or=20
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Tarantella Secure Global Desktop Terminal Server Edition
Free Terminal Service Edition software with 2 years maintenance.
http://www.tarantella.com/ttba
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