Performance

Performance

Recommendations and Tools

• Overview of Performance Monitoring
• 186536 - Terminal Server Performance Monitor Objects and Counters
• Terminal Server Performance Tuning - by Brian Madden
• Windows System Resource Manager - 2003, Enterprise and Datacenter Ed.
• Terminal Services and Windows System Resource Manager - 2008
• Windows Performance Toolkit
• 291988 - A description of the 4 GB RAM Tuning feature and the Physical Address Extension parameter
• 909262 - Description of the changes to the mechanism that Windows Server 2003 uses to allocate resources
• 177415 - How to use Memory Pool Monitor (Poolmon.exe) to troubleshoot kernel mode memory leaks
• ThreadMaster - application based CPU Quota management tool. Freeware utility, by Soren M. Pedersen
• CTX106021 - FAQ: The CPU Utilization Management Feature PS4
• CTX106022 - Virtual Memory Optimization Feature Application Compatibility List PS4
• One reason Why Windows Server 2008 Terminal Server Will Allow You To Get More Users On A Box - by Michel Roth
• How can I measure RDP bandwidth usage?
• Bandwidth Allocation for Terminal Server connections over RDP Vista and 2008
• How To: Simulate WAN Connections in Your Own Test Lab, For Free! - by Michel Roth

Logon and logoff delays

If you have a problem with long logon and logoff times, don't forget to check the EventLog on the Terminal Server. If the problem is caused by a profile load or unload error, you will find an event saying so. In that case, check the TS/Citrix - Profiles page.

• 274740 - Initial Program List Determines When the Terminal Server Session Ends
• 324446 - Terminal Server and connected Terminal Services clients pause when a Terminal Services client logs on or logs off Lanman + LazyFlush
• 927182 - When a user logs off a Windows Server 2003 Service Pack 1-based terminal server, the terminal server may stop responding for several seconds post-SP2 hotfix
• 901196 - A remote session does not end immediately on a computer that is running Windows Server 2003 Service Pack 1 certificate autoenrollment
• 831962 - A remote desktop session may experience a long delay when you try to log off an Advanced Client computer with SMS 2003
• 944003 - Terminal Servers performance slow down or hang with TrendMicro OfficeScan
• 829485 - You Experience Performance and Logon Problems When You Use Terminal Services NT 4.0 + W2K

File access delays / SMB problems

• 317249 - How to troubleshoot Event ID 2021 and Event ID 2022 Lanman - all OS
• 888562 - You experience slow performance when you use Windows 2000 Server or Windows Server 2003 to access files on a computer that is running Windows 2000 Server or Windows NT 4.0 Lanman
• Does Your Environment Need SMB Tuning? - by Michel Roth
• 232476 - Terminal Server Client Connections and Logon Limited by MaxWorkItem and MaxMpxCt Values Lanman - W2K + NT4.0



• 830265 - You receive an "Out of memory" error message when you try to save a file third-party file system filter driver
• 915377 - You experience slow performance when you try to access shared resources by using Windows Explorer on a client computer that is running Windows XP or Windows Server 2003 DFS - XP + 2003 hotfix
• 813546 - Slow Performance During a Remote Assistance Session File Transfer 2003
• 947773 - A Windows Server 2003-based computer responds slowly to RDP connections or to SMB connections that are made from a Windows Vista-based computer TCP autotuning
• 923360 - You may experience various problems when you work with files over the network on a Windows Server 2003-based or Windows 2000 Server-based computer with Symantec or eTrust antivirus software
• 822219 - You experience slow file server performance and delays occur when you work with files that are located on a file server with anti-virus and backup software
• 948572 - A handle leak occurs in a Server Message Block (SMB) session between two Windows Vista-based computers or between two Windows Server 2008-based computers

Application performance problems

• 816513 - Poor Program Performance Occurs in a Remote Terminal Services Session EmulateGetUiEffects
• Secrets for Optimizing Flash Performance Part 1 and Part 2 Citrix PS

Misc. performance problems

• 950086 - A memory leak may occur in the nonpaged pool memory on the Windows Server 2008-based terminal server when you log on to and log off from a Windows Server 2008-based terminal server through an RDP connection
• 312362 - Server is unable to allocate memory from the system paged pool
• 934330 - The Csrss.exe process in a terminal-server session continuously consumes more than 50 percent of CPU resources on a Windows Server 2003-based terminal server
• 817532 - Thread in the Csrss.exe process consistently uses 25 percent of the CPU on your Windows 2000 Server
• 837585 - Several orphaned Csrss.exe processes cause performance issues on a terminal server that is running Windows 2000 or Windows Server 2003
• 827350 - Clients cannot connect to a Terminal server when Csrss.exe and Termsrv.exe spike at 100 percent CPU usage
• 937375 - You experience slow performance and high CPU utilization on a Windows Server 2003 Terminal Server post-SP2 hotfix
• 840214 - Terminal Server users experience degradation in performance when they run 16-bit programs W2K
• 822834 - Spooler Failure Causes High CPU Usage in the Winlogon.exe and Spoolsv.exe Processes on a Windows 2000 Terminal Server
• 294745 - The Performance of the Remote Desktop Connection or the Terminal Services Client Is Affected by Animation

Citrix specific performance problems

• CTX101705 - Troubleshooting Slow Logons
• 936655 - A Citrix process uses 4 gigabytes (GB) of nonpaged pool memory on a Microsoft Windows Server 2003-based computer
• 839953 - A Citrix session may respond very slowly when you log on to the session from a Windows XP-based computer
• 821225 - A Windows 2000 Terminal Server That Is Configured with Citrix Metaframe Software Can Become Slow and Unresponsive
• 824309 - Very Long Logon and Logoff Times When You Try to Connect to Citrix MetaFrame or Citrix 1.8