Microsoft terminal server performance

When user interaction at the client is high, the buffer is flushed at approximately 20 times per second. During idle time, or when there is no user interaction, the buffer is slowed to only flush 10 times per second. You can tune all these numbers through the registry.

After session details have been negotiated, the server RDP stack instance for this connection will be mapped to an existing idle Win32k user session, and the user will be prompted with the Windows NT logon screen. If autologon is configured, the encrypted username and password will be passed to the Terminal Server, and logon will proceed.

Much of the Win32k user session is utilizing shared code and will load noticeably faster after one instance has previously loaded. After the user types a username and password, packets are sent encrypted to the Terminal Server. If a SessionID is already associated with this user for example, a disconnected session exists , the currently active session stack is attached to the old session. The temporary Win32 session used for the initial logon is then deleted.

If for some reason more than one session is active for this user, the list of sessions is displayed and the user decides which one to select for reconnection. After user logon, the desktop or application if in single-application mode is displayed for the user. When the user selects a bit application to run, the mouse commands are passed to the Terminal Server, which launches the selected application into a new virtual memory space 2-GB application, 2-GB kernel.

All processes on the Terminal Server will share code in kernel and user modes wherever possible. When multiple processes want to read and write the same memory contents, the VM manager will assign copy-on-write page protection to the memory region. Copy-on-write is useful and efficient for applications running on a Terminal Server.

When a Winbased application such as Microsoft Word is loaded into physical memory by one process Session , it is marked as copy-on-write. When new processes Sessions also invoke Word, the image loader will just point the new processes Sessions to the existing copy because the application is already loaded in memory. The VM manager will protect this memory space from other processes. Create a Dexsql. For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:.

Create a Sqldiag. Information that is logged in the Application log on the computer that is running SQL Server may be helpful.

To obtain the information that is logged in the Application log, follow these steps:. Or, telephone Technical Support for Microsoft Dynamics at Need more help? Expand your skills. Get new features first. Was this information helpful? Yes No. Thank you! Any more feedback? The more you tell us the more we can help. Can you help us improve? Resolved my issue. Clear instructions. Easy to follow. No jargon. Pictures helped. Didn't match my screen. Incorrect instructions.

Too technical. Not enough information. Not enough pictures. Any additional feedback? Submit feedback. Thank you for your feedback! Note When the actual number of active sessions is 0 , the Active Sessions counter returns This value represents a value of The issue occurs because of a race condition in the Local Session Manager Lsm. When the race condition occurs, the performance counters are not updated when a Remote Desktop Services session is disconnected.

This behavior causes that the number of active sessions to be one less than the actual value. A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing.

Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix. If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article.

If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix. Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request.

The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. I've just checked with one of our users who was having issues and changing the speed setting to low speed worked well, the connection was much faster. Thank you. The problem now, I think. Is it possible to alter these settings for those links? Do you mean that each user goes to RDWeb and downloads it themselves? You can definitely save a copy, alter it, then send it out to people for them to use.

The RDP file is just a text file so you can edit it in Notepad. Thank you for your help. To continue this discussion, please ask a new question. Get answers from your peers along with millions of IT pros who visit Spiceworks. Network connections for the affected users all appear normal.