Hello - we are noticing very high Internet Explorer CPU usage on our Citrix servers. Currently we have a small farm (5 Servers) offering a published desktop to remote site and home users. Generally speaking we observe poor performance, high CPU and Memory around the same time everyday. Event logs and task scheduler do not indicate any issues.
100% of the time the culprit was either a IE or Chrome process consuming 70 to 80% CPU. Lately, i have been able to isolate the problem to a couple of user sessions and even asked those users what sites they were visiting when the problems occurred.
Pretty consistently I heard, either www.nydailynews.com
Over the past month we have noticed a spike in these types of issues.
(5) Virtual Machines: Citrix XenApp 6.5 / Server 2008 R2
Virtual Machine: 16GB Memory / 2 vCPU
Average 10 User Sessions per Citrix Server
Citrix Receiver 14.2
VmWare VCenter 5.5
After a ton of research i feel like the ultimate trigger is Flash and possibly the need for an additional 2vCPU per server.
1. Do you recommend i provision and additonal 2vCPU?
2. Would HDX Redirection / offloading help in this situation?