[THIN] Re: Slow performance over WAN
- From: "Tim Mangan" <tmangan@xxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Tue, 12 Oct 2004 08:29:38 -0400
These changes look about right.
While you can?t change the speed of light, anything you can do to reduce the
amount of traffic will help quite a bit as (except for satellite) volume
adds to latency at the low bandwidth bottlenecks (aka ?the local loop?).
Reducing encryption might help and certainly won?t hurt performance. That
the loop has Asynch speeds does not matter (other than the limits on the
bandwidth, eg: 512/1024 will always be better than 512/512).
I have seen some site use appliances, such as Packeteer, to help with
prioritizing RDP/ICA versus other local loop traffic at the remote ends to
help as well. Third party reduced bandwidth printing solutions can help
also. Limiting ability to copy files between server and local PC also.
Tim Mangan
_____
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf
Of Kjell Olausson
Sent: Tuesday, October 12, 2004 7:07 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Slow performance over WAN
I took a look at the performance counters and could see that the problem
most certainly is latency if I compare the figures with other users.
I have done the following to reduce the problem:
Server settings:
Reduced screen colors to 256.
Changed encryption from 40 to Basic
ICA Client settings:
Use data compression
Use disk cache for bitmaps
SpeedScreen Latency Reduction ON
I'm not completely sure that everyone of these steps is nessecary? Is there
something else I could check?
Regards, Kjell
"Jeff Durbin" <techlists@xxxxxxxxxxxxx>
Sänt av: thin-bounce@xxxxxxxxxxxxx
2004-10-11 16:21
Sänd svar till
thin@xxxxxxxxxxxxx
Till
<thin@xxxxxxxxxxxxx>
Kopia
Ärende
[THIN] Re: Slow performance over WAN
And don't forget latency. They can have all the bandwidth in the world, but
if there's a high level of latency, their session performance will be poor.
There are performance monitor counters for session latency under the 'ICA
Session' object on your Citrix servers. You could look at those to see
average latency for the problem clients.
> -----Original Message-----
> From: thin-bounce@xxxxxxxxxxxxx
> [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Foote, Eric
> Sent: Monday, 11 October 2004 4:04 a.m.
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Re: Slow performance over WAN
>
> Don't rule out the VPN either, could be someone is accessing
> resources other than Citrix from your LAN which would fill
> the pipe pretty quickly.
>
> Eric
>
> -----Original Message-----
> From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On
> Behalf Of Rob Beekmans
> Sent: Monday, October 11, 2004 6:07 AM
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Re: Slow performance over WAN
>
>
> Nicolai,
>
> Is their line 1:1 ADSL or more split up....that's what's
> bugging connection over here mostly....1:20 line 256K and
> they wonder why they have slow connection.....
>
> I'd check that direction.....
>
> Met vriendelijke groeten / With kind regards
>
> Rob Beekmans
> Technical Consultant
> A-Tree Automatisering
>
> St. Annastraat 167 / 6524ET Nijmegen
> Business Phone: +31 24 6452000
> Business Fax: +31 24 6450463
> Business website: http://www.a-tree.nl
> Business E-mail: R.Beekmans@xxxxxxxxx
>
> Private E-mail: RobBeekmans@xxxxxxxxxxxxx Private E-mail:
> rob.beekmans@xxxxxxxxx
>
>
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> -----Oorspronkelijk bericht-----
> Van: Nicolai Imset [mailto:nicolai.imset@xxxxxxxxx]
> Verzonden: maandag 11 oktober 2004 9:43
> Aan: thin@xxxxxxxxxxxxx
> Onderwerp: [THIN] Re: Slow performance over WAN
>
>
> 512 kb/s should be ok depending on your settings.
> if you allow sound then 512kb/s might work for one user..
> so in basic har dto tell unless you tell us how user connections are
> configured
>
>
> On Mon, 11 Oct 2004 09:17:19 +0200, Kjell Olausson
> <k.olausson@xxxxxxxxxx> wrote:
> >
> > Hi!
> >
> > A company with 12 users connect over Internet using ADSL
> and VPN to my
> > Citrix farm.
> >
> > They have 512 kbit/s up and 2048 kbit/s down (asymmetric).
> >
> > I have a 512 kbit (up/down) leased line to the Internet.
> >
> > They complain about slow application performance. I have checked the
> > servers and it has to be the WAN connection. Is it the assymetric
> > connection that is the problem or do I have to get a faster
> line on my
>
> > end?
> >
> > Could you get me some advice on this issue, please?
> >
> > Regards, Kjell O
>
>
> --
> Nicolai Imset
> CCA
> NT Consultant
> -------
> "Then follow! But! Follow only if ye be men of valor, for the entrance
> to this cave is guarded by a creature so foul,
> so cruel that no man yet has fought with it and lived! Bones of four
> fifty men lie strewn about its lair. So, brave knights,
> if you do doubt your courage or your strength, come no further, for
> death awaits you all with nasty big pointy teeth."
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and time of day possible problems exist.
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