[THIN] Re: Page file max out
- From: "Chris Lynch" <lynch00@xxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Fri, 21 Jan 2005 13:42:47 -0800
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
We always tell our clients that if you are NOT running a Windows
Server 2003 server or a Linux server running 2.4.24+ kernel, to
disable HT. This adversely affects the system, as the OS will treat
the logical CPU as a physical CPU.
Chris
________________________________
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]
On Behalf Of Steve Parr
Sent: Friday, January 21, 2005 11:11 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: Page file max out
Are there Citrix Admin's out there disabling hyperthreading if
running Win2k OS?
Have seen recommendations that it is better to disable for Win2k but
for Win2k3
hyperthreading generally will give a performance boost depending on
load and
type of app.
Is there anyone out there who has tested\experinced Win2k OS for
hyperthreading vs. disabled
hyperthreading when running Citrix/TS? I just hear people saying
that hyperthreading "could" lead
to system stability, but perhaps there are people out there who have
switched from one mode to
another and seen noticeable improvements?
-----Original Message-----
From: Tim Mangan [mailto:tmangan@xxxxxxxxxxxx]
Sent: Friday, January 21, 2005 8:29 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Page file max out
Pavlo,
I looked back at the thread, because I thought you mentioned Win2K
servers, but I couldn't find the reference. If so, Hyperthreading
should be disabled (Hyperthreading is OK on Win2k03 and WinXP). I
have not seen it cause these symptoms - but who knows?
Hyperthreading is disabled in the BIOS.
Originally, you mentioned that "Page Swaps 100%". What does that
mean? So let's explore if that is really what is going on.
If I thought paging was an issue, I would first look to the Windows
Task Manager to see if the "Total Commit Charge" exceeds the
"Physical Memory". Constant paging will not occur until physical
memory is exceeded. In the numbers you show, it looks like (at least
for that snapshot) you are below this threshold. So I would use the
performance monitor to watch these values. (Note: you should run the
Performance Monitor GUI from another system and gather stats
remotely). Next, I would look a the Performance Manager
"Memory:Pages/Sec". This counter includes paging of code/data pages
of applications, plus paging due to application file system cache.
The counter is in pages per second. So how many pages per second,
when the problem is evident and when it is not?
Tim Mangan
________________________________
From: thin-bounce@xxxxxxxxxxxxx
[mailto:thin-bounce@xxxxxxxxxxxxx]
On Behalf Of Pavlo Ignatusha
Sent: Wednesday, January 19, 2005 9:17 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: Page file max out
OK,
I spent some time in the Perfmon and here is what I found while CMC
reports full load based on Page Swap:
1. Perfmon %DPC and %Interrupt for each processor are almost flat
(1-8%)
2. Perfmon Process Page Faults/sec shows no single leader. A lot of
apps and windows services spike every so often but no one is claiming
High page Faults for longer then 2 sec. The most Page Faults were
reported for
WinMgmt
some instances of Dynamics
some instances of Winlogon
some instances of Winword
some instances of guiengine (SQL client for patient information
system)
some instances of Outlook
some instances of Accuterm97
spoolsv
some instances of CSRSS, wfcshell
naPrdMgr
3. Taskmon stats:
Totals
Handles 62313
Threads 3946
Processes 334
Physical Memory (K)
Total 2096604
Available 585365
System Cache 362476
Kernel Memory (K)
Total 211100
Paged 136364
NonPaged 74740
Commit Charge (K)
Total 1841980
Limit 7162272
Peak 2428548
Since I do not see a single source of the problem then maybe I'm
running out of resources? But interestingly I have 3rd server HP DL
380 with Hyperthreading on and more memory but it is still hosting
almost same number of users and is getting maxed out on Page swap in
CMC just as well. I'm really puzzled.
Thanks for any help with this,
Pavlo Ignatusha
Systems Network Coordinator
Pembroke General Hospital
Tel. (613) 732-3675 ext.6150
Fax. (613) 732-9986
www.pemgenhos.org
"All that matters is love and work" - Sigmund Freud.
-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3
Comment: Public PGP Key for Chris Lynch
iQA/AwUBQfF3Vm9fg+xq5T3MEQKwzACg+yKuqv3hLhmtV0IxLolV1AErtR4An3UX
v6mtUjf8ZOf6p/N2PukX7u5R
=Rwen
-----END PGP SIGNATURE-----
********************************************************
This Weeks Sponsor SeamlessPlanet.com Domain Names
Register your .com domain name for as low as $7.85
One of the lowest prices on the web! Part of The Kenzig Group.
http://www.seamlessplanet.com
**********************************************************
Useful Thin Client Computing Links are available at:
http://thin.net/links.cfm
ThinWiki community - Awesome SBC Search Capabilities!
http://www.thinwiki.com
***********************************************************
For Archives, to Unsubscribe, Subscribe or
set Digest or Vacation mode use the below link:
http://thin.net/citrixlist.cfm
Other related posts:
