- Red Hat Enterprise Virtualization Manager is now a Java application running on JBoss Enterprise Application Platform on Red Hat Enterprise Linux
- A power user portal that provides end users with a self-service interface to provision virtual machines, define templates and administer their own environments
- A RESTful API that allows complete configuration and management of Red Hat Enterprise Virtualization for use by customers or a rich ecosystem of management Partners
- Extended multi-level administrative capabilities, allowing fine-grained resource control, Role Based Access control, delegation and hierarchical management
- New local storage capabilities
- An integrated and embedded reporting engine allowing for analysis of historic usage trends and utilization reports
- SPICE WAN optimization and enhanced performance including dynamic compression and automatic tuning of desktop effects and color depth. The new version of SPICE also features enhanced support for Linux desktops.
- An updated KVM hypervisor with new capabilities focused around scalability, performance and security, such as:
Red Hat Enterprise Virtualization now supports up to 160 cores and 2TB of memory on a host system. This allows customers to get better consolidation ratios running several hundred VMs on a given host.
Red Hat Enterprise Virtualization can now support up to 64 virtual CPUs per guest, up to twice that of some competitors, allowing even larger workloads to be virtualized.
Red Hat Enterprise Virtualization now supports 512GB.
- vhost-net: We have moved the KVM networking stack from userspace into the Linux kernel, which greatly improves performance and reduces latency.
- Transparant Huge Pages: New feature where the Linux kernel dynamically creates large memory pages (2MB -vs- 4KB) for virtual machines, improving performance by reducing the number of times that memory is accessed, typically improving performance for most workloads.
- x2paic: Paravirtualized interrupt controller in the VM, which reduces guest overhead and can improve guest performance in interrupt-heavy workloads.
- Async-IO: For block I/O operations, in many cases yielding notable improvement in block I/O.
Use of SELinux-based sVirt infrastructure for military-grade hardening of the hypervisor.
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