VMware vSphere supports applications with millisecond level latency constraints – however certain applications that are extremely latency sensitive would still be affected by the overhead due to strict latency requirements. In order to support virtual machines with strict latency requirements VMware vSphere introduces a new per VM feature called Latency Sensitivity
Among other optimizations this feature allows virtual machines to exclusively own physical cores thus avoiding overhead related to CPU scheduling and contention and combined with a network passthrough functionality which bypasses the network virtualization layer applications can achieve nearnative performance in both response time and jitter