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We have a Citrix farm running Server 2016. CPU Fair Share is enabled (by default) but still we have examples of a single user claiming 100% CPU when running queries in PowerBI. Shouldn't Fair Share prevent exactly this?

Mikael Dyreborg Hansen
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  • Why would it, if the CPU is not in use otherwise? And how does the hardware look like? – TomTom Sep 20 '18 at 10:50
  • You can check there, https://web.archive.org/web/20140213021604/http://blogs.msdn.com/b/rds/archive/2009/05/29/using-wsrm-to-control-rds-dynamic-fair-share-scheduling.aspx, it show some tweaking you can do, but the blog talk about 2008R2, but the information seem hard to find for CPU Fair Share. – yagmoth555 Sep 20 '18 at 12:33
  • @TomTom The cpu is in use, as there are 8 concurrent connections, so the one user ends up taking all CPU resources when he in my mind shouldn't. – Mikael Dyreborg Hansen Sep 21 '18 at 09:07
  • @yagmoth555 Thanks for the link, but as you said, it's for 2008R2. WSRM has deprecated as of 2012. – Mikael Dyreborg Hansen Sep 21 '18 at 09:07
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    "The cpu is in use, as there are 8 concurrent connections," No. 8 connections does not mean "in use". 7 connections may just watch a static screen at this particular moment. – TomTom Sep 21 '18 at 10:27
  • @TomTom very valid point indeed, the thing is that the other connected users are not just starring at their screens. – Mikael Dyreborg Hansen Sep 26 '18 at 10:21
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    Interestng enoug hthy may just do that. 8 users it stoo few to statiscialyl have some users ative all the time. Especially when doing data analysis they may all just "think", you know. – TomTom Sep 30 '18 at 10:32

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