Re: [Ltsp-discuss] New Rpi or Odroic C1 for LTSP?

2015-02-11 Thread Rolf-Werner Eilert


Am 11.02.2015 09:04, schrieb Denis Croombs:
 On 11/02/2015 07:24, Rolf-Werner Eilert wrote:
 Hmmm - that's interesting. What about graphics speed when showing
 animated transitions in PowerPoint or Impress? What about speed with
 flash-decorated websites (e.g. carousel with images or ad video at the
 top of the page)?

 These are the bottlenecks in our environment. Can you tell me something
 from your experience with the pi's here?

 Rolf

 It is actually very interesting in that so far we are finding very
 little difference between the PI/LTSP speed when you RDP onto the Server
 2008r2 desktop and a windows 7 pc RDP onto the same Server 2008r2
 desktop on BIG website pages, they are slightly slower than the same
 page on a new windows 7 PC, but we are still working to narrow that
 pi/ltsp to win7 PC speed gap. (so far this looks like the server HDD (80
 to 120 server 2008r2 desktops) is the bottle neck so we have changed
 from raid 5 to raid 50 to help fix that.
 But for our normal customer service agents it makes no difference it is
 only the power users/supervisors in the teams who notice the difference,
 but we are continuing to roll out the setup to our 50+ teams all with
 different requirements.

 Regards
 Denis


Oh, that sounds promising. After all, a pi isn't that expensive, maybe I 
should get one and give it a try ;)

Rolf

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Re: [Ltsp-discuss] New Rpi or Odroic C1 for LTSP?

2015-02-11 Thread Denis Croombs
On 11/02/2015 07:24, Rolf-Werner Eilert wrote:
 Hmmm - that's interesting. What about graphics speed when showing
 animated transitions in PowerPoint or Impress? What about speed with
 flash-decorated websites (e.g. carousel with images or ad video at the
 top of the page)?

 These are the bottlenecks in our environment. Can you tell me something
 from your experience with the pi's here?

 Rolf

It is actually very interesting in that so far we are finding very 
little difference between the PI/LTSP speed when you RDP onto the Server 
2008r2 desktop and a windows 7 pc RDP onto the same Server 2008r2 
desktop on BIG website pages, they are slightly slower than the same 
page on a new windows 7 PC, but we are still working to narrow that 
pi/ltsp to win7 PC speed gap. (so far this looks like the server HDD (80 
to 120 server 2008r2 desktops) is the bottle neck so we have changed 
from raid 5 to raid 50 to help fix that.
But for our normal customer service agents it makes no difference it is 
only the power users/supervisors in the teams who notice the difference, 
but we are continuing to roll out the setup to our 50+ teams all with 
different requirements.

Regards
Denis

--
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[Ltsp-discuss] New Rpi or Odroic C1 for LTSP?

2015-02-10 Thread Rolf-Werner Eilert
Hi folks,

Just thought that the new RasPi or the Odroid C1 might work good as LTSP 
terminals. They both have 1 GB RAM, the RasPi being somewhat slower. The 
only prerequisite would be PXE booting, but shouldn't they both be able to?

Does anyone here already have tried them?

Rolf

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Re: [Ltsp-discuss] New Rpi or Odroic C1 for LTSP?

2015-02-10 Thread Rolf-Werner Eilert
That's good news, and a nice page! I browsed through it, and even 
without drinking so much coffee :) I have a question:

What kind of kernel does the RasPi load here? You wrote there is 
actually no need for an i386 kernel, but is there yet another one?

Another question is RAM. You say, 128 MB is enough. I have a group of 
PIII (Dell Optiplex something...) terminals here with 128 MB, and it's 
not enough. They get into LDM, then crash. With 256 MB, they run ok 
(though rather slowly). Any idea?

Regards
Rolf


Am 10.02.2015 11:06, schrieb Harry Lavender:
 Hi Rolf,

 The new Raspberry Pi's will make excellent thin clients. I have a guide
 here for the model B+, but I will be updating it once I get round to
 acquiring a new raspberry pi B2.

 www.uzerp.com/blog/running-raspberry-pis-as-thin-clients-with-ubuntu-14-04-lts/


 On 10/02/15 09:13, Rolf-Werner Eilert wrote:
 Hi folks,

 Just thought that the new RasPi or the Odroid C1 might work good as LTSP
 terminals. They both have 1 GB RAM, the RasPi being somewhat slower. The
 only prerequisite would be PXE booting, but shouldn't they both be
 able to?

 Does anyone here already have tried them?

 Rolf

 --

 Dive into the World of Parallel Programming. The Go Parallel Website,
 sponsored by Intel and developed in partnership with Slashdot Media,
 is your
 hub for all things parallel software development, from weekly thought
 leadership blogs to news, videos, case studies, tutorials and more.
 Take a
 look and join the conversation now. http://goparallel.sourceforge.net/
 _
 Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
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Re: [Ltsp-discuss] New Rpi or Odroic C1 for LTSP?

2015-02-10 Thread Harry Lavender
Hi Rolf,

The new Raspberry Pi's will make excellent thin clients. I have a guide 
here for the model B+, but I will be updating it once I get round to 
acquiring a new raspberry pi B2.

www.uzerp.com/blog/running-raspberry-pis-as-thin-clients-with-ubuntu-14-04-lts/

On 10/02/15 09:13, Rolf-Werner Eilert wrote:
 Hi folks,

 Just thought that the new RasPi or the Odroid C1 might work good as LTSP
 terminals. They both have 1 GB RAM, the RasPi being somewhat slower. The
 only prerequisite would be PXE booting, but shouldn't they both be able to?

 Does anyone here already have tried them?

 Rolf

 --
 Dive into the World of Parallel Programming. The Go Parallel Website,
 sponsored by Intel and developed in partnership with Slashdot Media, is your
 hub for all things parallel software development, from weekly thought
 leadership blogs to news, videos, case studies, tutorials and more. Take a
 look and join the conversation now. http://goparallel.sourceforge.net/
 _
 Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
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 For additional LTSP help,   try #ltsp channel on irc.freenode.net

-- 
Regards

Harry Lavender
Systems Administrator
Severn Delta Limited
DDI 01278 726278
Tel 01278 428200
Fax 01278 458766

Showground Road,
Bridgwater,
Somerset TA6 6AJ
Company Number 4269451
VAT Registration GB793728185


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Re: [Ltsp-discuss] New Rpi or Odroic C1 for LTSP?

2015-02-10 Thread Harry Lavender
I'm not entirely sure how BerryTerminal works, but since ARM cannot 
execute x86 code (i386 build of LTSP), I'd guess that it uses LDM and 
some kind of RDP mixture. You can build a AMD64 kernel, but I find this 
pointless, as i386 is compatible with all clients, as in extreme cases 
we have a couple of super old 32 bit machines kicking about.

What window manager do you use? As the X server runs on the local 
client, a heavier desktop will probably leave the system without any 
memory, good examples of heavy desktops are Unity and the like, along 
with Gnome3.

Cheers,

Harry


On 10/02/15 10:58, Rolf-Werner Eilert wrote:
 That's good news, and a nice page! I browsed through it, and even
 without drinking so much coffee :) I have a question:

 What kind of kernel does the RasPi load here? You wrote there is
 actually no need for an i386 kernel, but is there yet another one?

 Another question is RAM. You say, 128 MB is enough. I have a group of
 PIII (Dell Optiplex something...) terminals here with 128 MB, and it's
 not enough. They get into LDM, then crash. With 256 MB, they run ok
 (though rather slowly). Any idea?

 Regards
 Rolf


 Am 10.02.2015 11:06, schrieb Harry Lavender:
 Hi Rolf,

 The new Raspberry Pi's will make excellent thin clients. I have a guide
 here for the model B+, but I will be updating it once I get round to
 acquiring a new raspberry pi B2.

 www.uzerp.com/blog/running-raspberry-pis-as-thin-clients-with-ubuntu-14-04-lts/


 On 10/02/15 09:13, Rolf-Werner Eilert wrote:
 Hi folks,

 Just thought that the new RasPi or the Odroid C1 might work good as LTSP
 terminals. They both have 1 GB RAM, the RasPi being somewhat slower. The
 only prerequisite would be PXE booting, but shouldn't they both be
 able to?

 Does anyone here already have tried them?

 Rolf

 --

 Dive into the World of Parallel Programming. The Go Parallel Website,
 sponsored by Intel and developed in partnership with Slashdot Media,
 is your
 hub for all things parallel software development, from weekly thought
 leadership blogs to news, videos, case studies, tutorials and more.
 Take a
 look and join the conversation now. http://goparallel.sourceforge.net/
 _
 Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
 https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
 For additional LTSP help,   try #ltsp channel on irc.freenode.net
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 Dive into the World of Parallel Programming. The Go Parallel Website,
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 hub for all things parallel software development, from weekly thought
 leadership blogs to news, videos, case studies, tutorials and more. Take a
 look and join the conversation now. http://goparallel.sourceforge.net/
 _
 Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
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-- 
Regards

Harry Lavender
Systems Administrator
Severn Delta Limited
DDI 01278 726278
Tel 01278 428200
Fax 01278 458766

Showground Road,
Bridgwater,
Somerset TA6 6AJ
Company Number 4269451
VAT Registration GB793728185


--
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_
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Re: [Ltsp-discuss] New Rpi or Odroic C1 for LTSP?

2015-02-10 Thread Vagrant Cascadian
On 2015-02-10, Rolf-Werner Eilert wrote:
 Just thought that the new RasPi or the Odroid C1 might work good as LTSP 
 terminals. They both have 1 GB RAM, the RasPi being somewhat slower.

They might make decent thin clients, though it may take a while for the
kernel support to get upstream, especially with all supported features.


 The only prerequisite would be PXE booting, but shouldn't they both be
 able to?

They probably don't do genuine PXE booting, but there is support for
emulating PXE boot in recent versions of u-boot (a bootloader commonly
used on many ARM boards).


live well,
  vagrant


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Re: [Ltsp-discuss] New Rpi or Odroic C1 for LTSP?

2015-02-10 Thread Vagrant Cascadian
On 2015-02-10, Harry Lavender wrote:
 I'm not entirely sure how BerryTerminal works, but since ARM cannot 
 execute x86 code (i386 build of LTSP), I'd guess that it uses LDM and 
 some kind of RDP mixture.

Last I looked, BerryTerminal was just a build of various LTSP software
such as LDM, ltspfs, etc. and a core operating system that emulates an
LTSP thin client.

With a thin client, most of the code that the user interacts with is
running on the server, and merely displayed to the thin client. This is
no different weather the client is running i386 code and the server is
running amd64 code, or if the client is running ARM code and the server
is i386.

live well,
  vagrant


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Re: [Ltsp-discuss] New Rpi or Odroic C1 for LTSP?

2015-02-10 Thread Vagrant Cascadian
On 2015-02-10, Harry Lavender wrote:
 The new Raspberry Pi's will make excellent thin clients. I have a guide 
 here for the model B+, but I will be updating it once I get round to 
 acquiring a new raspberry pi B2.

 www.uzerp.com/blog/running-raspberry-pis-as-thin-clients-with-ubuntu-14-04-lts/

The instructions to install an i386 LTSP environment would only be
needed if you want to run i386 compatible thin clients, which wouldn't
be any of the raspberry pi boards or odroid c1, which are ARM based.
You should be able to install berryterminal on your clients, or genuine
LTSP for ARM without installing any i386 LTSP chroots on your server.

Arguably the rpi2 and odroid c1 would actually make decent fat
clients...

live well,
  vagrant


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Re: [Ltsp-discuss] New Rpi or Odroic C1 for LTSP?

2015-02-10 Thread Denis Croombs
We use the original pi's and berry term with ltsp and then each person uses 
xfreerdp to remote windows server 2008r2 desktops as windows pc's the ltsp is 
locked and so the people do not even see it, but it works for 50 plus people in 
our teams of staff
I believe the new pi's may not give too much of a speed increase when using 
berry term but not sure about using them as pxe boot devices because of the CPU 
support.

Kind Regards
Denis Croombs
00353 861729383
Sent from my iPhone

 On 10 Feb 2015, at 09:13, Rolf-Werner Eilert eilert-sprac...@t-online.de 
 wrote:
 
 Hi folks,
 
 Just thought that the new RasPi or the Odroid C1 might work good as LTSP 
 terminals. They both have 1 GB RAM, the RasPi being somewhat slower. The 
 only prerequisite would be PXE booting, but shouldn't they both be able to?
 
 Does anyone here already have tried them?
 
 Rolf
 
 --
 Dive into the World of Parallel Programming. The Go Parallel Website,
 sponsored by Intel and developed in partnership with Slashdot Media, is your
 hub for all things parallel software development, from weekly thought
 leadership blogs to news, videos, case studies, tutorials and more. Take a
 look and join the conversation now. http://goparallel.sourceforge.net/
 _
 Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
  https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
 For additional LTSP help,   try #ltsp channel on irc.freenode.net
 

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Re: [Ltsp-discuss] New Rpi or Odroic C1 for LTSP?

2015-02-10 Thread Rolf-Werner Eilert
Hmmm - that's interesting. What about graphics speed when showing 
animated transitions in PowerPoint or Impress? What about speed with 
flash-decorated websites (e.g. carousel with images or ad video at the 
top of the page)?

These are the bottlenecks in our environment. Can you tell me something 
from your experience with the pi's here?

Rolf


Am 10.02.2015 20:15, schrieb Denis Croombs:
 We use the original pi's and berry term with ltsp and then each person uses 
 xfreerdp to remote windows server 2008r2 desktops as windows pc's the ltsp is 
 locked and so the people do not even see it, but it works for 50 plus people 
 in our teams of staff
 I believe the new pi's may not give too much of a speed increase when using 
 berry term but not sure about using them as pxe boot devices because of the 
 CPU support.

 Kind Regards
 Denis Croombs
 00353 861729383
 Sent from my iPhone

 On 10 Feb 2015, at 09:13, Rolf-Werner Eilert eilert-sprac...@t-online.de 
 wrote:

 Hi folks,

 Just thought that the new RasPi or the Odroid C1 might work good as LTSP
 terminals. They both have 1 GB RAM, the RasPi being somewhat slower. The
 only prerequisite would be PXE booting, but shouldn't they both be able to?

 Does anyone here already have tried them?

 Rolf

 --
 Dive into the World of Parallel Programming. The Go Parallel Website,
 sponsored by Intel and developed in partnership with Slashdot Media, is your
 hub for all things parallel software development, from weekly thought
 leadership blogs to news, videos, case studies, tutorials and more. Take a
 look and join the conversation now. http://goparallel.sourceforge.net/
 _
 Ltsp-discuss mailing list.   To un-subscribe, or change prefs, goto:
   https://lists.sourceforge.net/lists/listinfo/ltsp-discuss
 For additional LTSP help,   try #ltsp channel on irc.freenode.net



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