Calculate CPU usage for Horizon - Revision history

Michael.mast at 22:49, 18 December 2020

2020-12-18T22:49:02Z

Michael.mast at 19:36, 6 September 2018

2018-09-06T19:36:07Z

Michael.mast: Created page with "I found that for a modern Windows 7 VM, to be used as a standard desktop for a user, and without using GPU acceleration, you should provide 3-4 cores per user.

Howev..."

2018-09-06T18:55:14Z

Created page with "I found that for a modern Windows 7 VM, to be used as a standard desktop for a user, and without using GPU acceleration, you should provide 3-4 cores per user. Howev..."

New page

I found that for a modern Windows 7 VM, to be used as a standard desktop for a user, and without using GPU acceleration, you should provide 3-4 cores per user.
 
 
However, the actual formual for this is as follows based on a live deployment I have worked on.
 
 
Initially, three servers were deployed with three cores allocated to each VM. The servers had a total of 36 physical cores between them. Using the formula from a VMWare artical<ref>https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/technicalnote/view/server-storage-sizing-guide-windows-7-technical-note.pdf</ref> I was able to work out the following. Breaking down ratios of 6,5,and 4 to 1 and how many users we could expect for each.
<pre>
36 cores / 3 servers (previous)
72=(36/3)*6
60=(36/3)*5
48=(36/3)*4
</pre>
There was a problem. Not all of our test users were using the system, so we did not have good measurements. When all users were migrated we ran into resource contention. The user count was around 70 users and growing. Obviously a 6:1 ratio with our current core count was not sufficient. So we installed a fourth server and was able to squeeze them all in.
<pre>
48 cores / 4 servers (Current)
96=(48/3)*6
80=(48/3)*5
64=(48/3)*4
</pre>
Then after more growth and 102 VMs running, a chunk of them dedicated to service accounts that don't do much, we are experiencing resource contention again. This time we will increase our density and core count to accommodate 150 user.
<pre>
80 Cores / 2 servers (Future)
160=(80/3)*6
133=(80/3)*5
106=(80/3)*4
</pre>
However, I would like to bump this down to a 5:1 ratio to better manage resource spikes. These are not servers with predictable usage patterns.

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 I found that for a modern Windows 7 VM, to be used as a standard desktop for a user, and without using GPU acceleration, you should provide 3-4 cores per user.
 <br>
 <br>
-However, the actual formual for this is as follows based on a live deployment I have worked on.
+However, the actual formula for this is as follows based on a live deployment I have worked on.
 <br>
 <br>

@@ Line 5: / Line 5: @@
 <br>
 <br>
-Initially, three servers were deployed with three cores allocated to each VM. The servers had a total of 36 physical cores between them. Using the formula from a VMWare artical<ref>https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/technicalnote/view/server-storage-sizing-guide-windows-7-technical-note.pdf</ref> I was able to work out the following. Breaking down ratios of 6,5,and 4 to 1 and how many users we could expect for each.
+Initially, three servers were deployed with three cores allocated to each VM. The servers had a total of 36 physical cores between them. Using the formula from a VMWare artical<ref>https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/technicalnote/view/server-storage-sizing-guide-windows-7-technical-note.pdf</ref>
 <pre>
 cores / 3 servers (previous)

Calculate CPU usage for Horizon - Revision history

Michael.mast at 22:49, 18 December 2020

Michael.mast at 19:36, 6 September 2018

Michael.mast: Created page with "I found that for a modern Windows 7 VM, to be used as a standard desktop for a user, and without using GPU acceleration, you should provide 3-4 cores per user. Howev..."

Michael.mast: Created page with "I found that for a modern Windows 7 VM, to be used as a standard desktop for a user, and without using GPU acceleration, you should provide 3-4 cores per user.

Howev..."