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Per BVT (Borrowed Virtual Time) scheduler design, following per thread parameters are required to tune scheduling behaviour. - weight The time sharing of a thread on CPU. - warp Boost value of virtual time of a thread (time borrowed from future) to reduce Effective Virtual Time to prioritize the thread. - warp_limit Max warp time in one warp. - unwarp_period Min unwarp time after a warp. As of now, only weight is in use to tune virtual time ratio of VCPU threads from different VMs. Others parameters are for future extension. Tracked-On: #8500 Reviewed-by: Junjie Mao <junjie.mao@intel.com> Signed-off-by: Qiang Zhang <qiang4.zhang@intel.com>
ACRN Hypervisor ############### The open source `Project ACRN`_ defines a device hypervisor reference stack and an architecture for running multiple software subsystems, managed securely, on a consolidated system by means of a virtual machine manager. It also defines a reference framework implementation for virtual device emulation, called the "ACRN Device Model". The ACRN Hypervisor is a Type 1 reference hypervisor stack, running directly on the bare-metal hardware, and is suitable for a variety of IoT and embedded device solutions. The ACRN hypervisor addresses the gap that currently exists between datacenter hypervisors, and hard partitioning hypervisors. The ACRN hypervisor architecture partitions the system into different functional domains, with carefully selected guest OS sharing optimizations for IoT and embedded devices. You can find out more about Project ACRN on the `Project ACRN documentation`_ website. .. _`Project ACRN`: https://projectacrn.org .. _`ACRN Hypervisor`: https://github.com/projectacrn/acrn-hypervisor .. _`Project ACRN documentation`: https://projectacrn.github.io/