After installing SSL Visibility 4.5.11.1 SV3800B appliances may exhibit a higher load at idle than with previous versions of SSLV software.
Release : 4.5.11.1
Platform SV3800B
This issue is due to the increased CPU operations from the newly upgraded operating system.
This issue can be ignored since it affects just a single CPU core that has minimal involvement in network traffic handling.
This is noted as SVF-11507 within the SSLV 4.5.11.1 Release Notes.