[ok-mail] [K12OSN] Scalability (long email)

Brian Chase networkr0 at cfl.rr.com
Sat Apr 10 22:27:51 UTC 2004

This must be why Citrix is so successful, because the native WTS does 
such a poor job of it.  What I can't figure out is why you took your 
whole office staff back to Microsoft when OpenOffice has been out for 
several years now.

Terrell Prude', Jr. wrote:

> That's one of the major problems with Windows Terminal Server; the 
> underlying platform's just not efficient.  The RDP protocol used with it 
> is reasonably efficient, but the server itself gets S-L-O-W very 
> quickly.  I never did more than five on a dual-PIII, 900MHz, 1GB DRAM 
> box w/ Ultra3-SCSI RAID, back when I was running Windows networks, for 
> performance reasons; with any more, the CPUs kept pegging, and the 
> memory subsystem kept almost continuously swapping to disk.  As it was, 
> there was plenty of swapping, and the CPUs were heavily used.  We also 
> had stability issues with user applications (e. g. Microsoft Office).  
> We ended up using Terminal Services only for us sysadmins and making 
> everyone run MS Office on their desktops again.  Boy, did we learn!
> If for some reason you have to do this for twenty clients on one server, 
> then I'd recommend going for, at a minimum, a four processor box, with 
> max GHz (currently we're talking either Xeon 3.2GHz's or Opteron 
> 2.2GHz's (that's the 848 model, BTW).  Also, better have no less than 
> 4GB DRAM, and more is definitely not overkill.
> --TP
> norbert wrote:
>> Ooops that's a P-III & just for clarification we're using K12LTSP with 
>> diskless client, from each client we launch a rdesktop session.
>> thks again
>> norbert
>> bear2bar at netscape.net wrote:
>>> Hi,
>>> Has anyone setup rdesktop with linux on 20 + workstations ? (With 
>>> Win2K) and what specs are needed for the Win2K server to handle the 
>>> load.
>>> We've setup a P-II 500 Mhz with 512mb ram and can barely launch 3 
>>> connections. The response is incrediblly SLOW....
>>> thanks for the input
>>> norbert
>>> jhansknecht at hanstech.com wrote:
>>>> On Tue, 2004-04-06 at 21:26, Shawn Powers wrote:
>>>>> snip
>>>>> I have 3 schools, all connected via fiber.  There are approx 30 
>>>>> classrooms per building, with a variation of 10 & 100mbit 
>>>>> connections internally.  The 2 big directions I'm looking at would 
>>>>> be to have 90 "mini-labs", where a teacher gets a new white-box 
>>>>> Pentium 4 computer, and have it serve as a classroom LTSP server to 
>>>>> 5 or 6 "junker" thin clients for the students (much like the 
>>>>> original case study Paul Nelson put up several years back).  If the 
>>>>> student management system won't work under Wine -- that teacher 
>>>>> computer would have to run win4lin or some such solution.
>>>> Instead of win4lin think about using a Windows terminal server with
>>>> rdesktop. ....you will need to spend a little but I suspect you will be
>>>> able to conqueror this application requirement.
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