[THIN] Re: 2003 TS Perf Problem - best way to 100% find it
- From: "Lilley, Brian" <brian.lilley@xxxxxxxx>
- To: "'thin@xxxxxxxxxxxxx'" <thin@xxxxxxxxxxxxx>
- Date: Mon, 12 Jul 2004 16:42:16 +0100
you could try configuring for background services to suck and see.
also, its probably worth running filemon / regmon to see if any progs are
sticking in loops and just waiting for file locks to go etc etc.. which would
not show up in performance logs...
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On
Behalf Of Ron Jameson
Sent: 12 July 2004 16:27
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
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of Lilley, Brian
Sent: Monday, July 12, 2004 10:08 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: 2003 TS Perf Problem - best way to 100% find it
are there any metric's maxing out whilst the system appears to slow..
A) is the box paging??
B) are other machines suffering at this point?
C) are there any event log entries (which may appear unrelated) ?
D) does actually stop at any point.. if not a CPU/memory issue, then is
something waiting for a timeout..ie bad name resolution configuration...
E) is box configured for application optimization instead of 'Maximise
Date throughput for file sharing'?
this is just a rough guess list knocked together... best to follow a
more logical approach in the numerous troubleshooting guides...
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On
Behalf Of Ron Jameson
Sent: 12 July 2004 15:57
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: 2003 TS Perf Problem - best way to 100% find it
Originally we did not use the 3g switch. When we ran the MS Perf
Advisor - it showed 2g RAM available to users so we used the 3g to bump
it to see if it made any difference (which it did not).
Ron
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of Lilley, Brian
Sent: Monday, July 12, 2004 9:46 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: 2003 TS Perf Problem - best way to 100% find it
would make more sense to remove the 3GB switch for a TS...surely?
check out the performance and optimization guides on brianmadden.com
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On
Behalf Of Ron Jameson
Sent: 12 July 2004 15:38
To: thin@xxxxxxxxxxxxx
Subject: [THIN] 2003 TS Perf Problem - best way to 100% find it
We have a new 2003 TS with under 50 users but we are having a bit of a
difficult time locating the source of the overall system slowdowns. Is
there a way to pinpoint the exact cause of a problem slowdown? The
programs used on the TS are office 2003, QBooks and other accounting
programs (which is the bulk - each session consuming 60-130mb for the
accounting program @ each user). From what we see, the network
bandwidth is non-existent, drive speed/access is low but the CPU spikes
randomly on this dual xeon 3ghz on a dell PE6650. RAM is 3g,
hyperthread enabled, RAID 1/5, all data on server and apps loaded on TS.
We are just about to contact a third party to pin this down or MS PSS
for I feel me are missing something here - just not sure what. We are
running the MS service perf advisor now to see if we see anything. One
of our techs did check the PTE and recently added the /3g switch for
checking if it helps.
Ron
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