[THIN] Re: 2003 TS Perf Problem - best way to 100% find it
- From: "Trevor Fuson" <fuson@xxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Mon, 12 Jul 2004 08:53:31 -0700
The Sun JRE version 1.3 and older have a bug in them which causes
erradict slow performance in Java applications with certain Thin Clients
and Windows Server 2003. If this is a Java application, see if you can
upgrade to any 1.4 version of the JRE. If there is a JRE subdirectory
you can usually replace the whole folder with the latest version of the
JRE from Sun.
What RDP client and device are you using? What is the problem
application written in?
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of Ron Jameson
Sent: Monday, July 12, 2004 8:27 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: 2003 TS Perf Problem - best way to 100% find it
Paging yes, but not excessively - appears normal.
We thought of checking network chatter for a bad switch or NIC, ethereal
found some transmission retries but not sure if is excessive - still
under review.
Nothing out of the ordinary on event logs
Mainly the TS is the bogged one - we have some users running local
against the same file server that do not complain.
At random times, the CPU on the TS will hit 100% for a second or 2, then
down to 20, up to 30, 40, 60, down again. We hear the problems at
40-60%. The accounting program when it gets slow, if they close and
reopen - appears fast again so we are trying to find out why and what
this program is consuming to cause this. Even when the CPU is normal,
at random times they will still complain it is slow - close the program
and reopen - appears fine. No mem leak either.
We have been trying to talk to the programmers at the company to find
out if they can help debug their program and why it does what it does.
It is very frustrating on are part to only see 20 users on a TS before
seeing problems.
TS is optimized for programs - not background.
We are turning off hyperthreading tonight as well to compare perf. This
dual processor system has quad capable but that was my last resort if I
can pin down CPU as a root cause.
Ron
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