There must be millions of users of SEP in VMware environment and it is hard to believe that it is a common issue.If our case is unique then there should be some configuration/exclusion rule etc that can help us. All VMs are x64 and the ethernet adapters are VMXNET 3, VMWare tools are installed and updated to the latest versions.Virtualization Host CPU usage is 20% and Memory Usage is 40% during the test. The only article I found on the subject was https://www-secure.symantec.com/connect/forums/sep-121-ru2-windows-server-2012-vm-singnificantly-reduced-performance.We are experiencing significant reduction in file transfer rate and network speed with in our LAN between Virtual Machines running Windows 7 and Windows Server 2008 R2 guest OSs, Symantec Endpoint Protection (SEP) installed is 12.1.2015.2015.
It provides protection against even the most sophisticated attacks that evade traditional security measures, such as rootkits, zero-day attacks, and mutating spyware.
Symantec Endpoint Protection delivers more than world-class, industry-leading antivirus and antispyware signature-based protection.
It also provides advanced threat prevention that protects endpoints from targeted attacks and attacks not seen before.
Symantec Endpoint Protection Manager communicates with the Symantec Endpoint Protection clients and is configured through the Symantec Endpoint Protection Manager Console.
Symantec Endpoint Protection Manager Console lets you centrally manage the Symantec Endpoint Protection clients.