login vsi company logo login vsi company logo 250x40
header-05.jpg

Forum Announcement

The Login VSI forum has been disabled and now only serves as an archive. If you would like to submit a new support ticket, please send an email to support@loginvsi.com.

load script slow to start

  • 2nikon
  • 2nikon's Avatar Topic Author
28 Aug 2012 18:52 #487

Got a new issue today, I'm testing a beefy server, and I need to ramp up the load to about 300 sessions (bare metal xenapp 6.5 2008 R2 server). The first 100 sessions or so - everything is fine, I can see that within a few seconds of the user logging in the load script starts up. However, at some point (100-150 users on the box) the script starts up after a very long delay, it could be minutes after the user session started and I can see the desktop. At the same time, in the management console I can see that "Started" number can be like 180, but Active can be 110-120. The problem is that this seems to screw up the results, where I'll see VSIMax Corrected = 117, but Uncorrected is 184.

Any ideas on how to make the load script start more reliably right after the user logged in?

Thanks
Alex

Please Log in to join the conversation.

More
29 Aug 2012 04:29 #489

Alex,

VSI is started by a combination of logon script and Windows Explorer executing a specific registry key.

The VSI logon script is executed after group policy processing is done but before the Windows Explorer shell is loaded. This allows the logon script to set a registry key under HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run to start the main VSI executable when the Windows Explorer is loaded. When the Windows Explorer shell is loaded it will execute the programs specified under HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run. This is when the main VSI executable starts and the VSI workload starts. VSI has no influence over how fast/slow this process progresses. The only influence on this process is your systems performance.

The difference between launched and active session is exactly that. A launched session is a session that has been launched by the VSI launcher. A session is considered launched once the launcher has executed the command line for that session. The launcher does not care if your command line was successful. Once the main VSI executable is started a session is considered active.

Looking at the number of sessions that got stuck, the difference between VSIMax uncorrected and corrected is the number of stuck session, i expect your system was having trouble handling all of the users. Can you send me the data of this test? If you zip the data you should be able to attach it to a forum post. I can also provide you with a FTP location to upload the data to if you prefer that.

Please Log in to join the conversation.

  • 2nikon
  • 2nikon's Avatar Topic Author
29 Aug 2012 13:48 #490

Here are the results of my latest run. Like before, the first 100 users or so look fine, the load script starts almost immediately after I see the taskbar. After that, I start seeing more and more of the delay in starting of the load script. As I get close to 200 "sessions started", I can see 3-5 minute delay between a started session and the load starting up.
The result is also a bit suspect, I see Uncorrected = 204, Corrected = 177, but the chart shows quite a bit more users on before the sharp spike in delays, the line is more or less flat up till 232 users, and then it begins to jump.
Results are attached

Please Log in to join the conversation.

Start Delivering the Best End User Experience Today

Request a Demo

Login VSI, Inc.

3945 Freedom Circle
Suite 670
Santa Clara, CA 95054

Phone: +1 408 899 7418

Login VSI B.V.

De Entree 85
1101 BH Amsterdam
The Netherlands

Phone: +31 20 705 1200