Abstract: A method includes running multiple processing tasks on multiple physical processing cores that support general-purpose registers and special-purpose registers. Respective usage levels, with which the processing tasks use the special-purpose registers, are estimated. The physical processing cores are assigned to the processing tasks based on the estimated usage levels of the special-purpose registers.

Abstract: A method includes running a Virtual Machine (VM) on a first compute node in a plurality of compute nodes that communicate with one another over a communication network. The VM is migrated from the first compute node to a second compute node in the plurality by generating, for memory pages accessed by the VM, page transfer state of one or more local memory pages that are accessed locally on the first compute node, and of one or more externalized memory pages whose access is not confined to the first node. Based on the page transfer state, the migrated VM is provided with access to the memory pages, including both the local and the externalized memory pages, on the second compute node.

Abstract: A method includes running a Virtual Machine (VM) on a first compute node in a plurality of compute nodes that communicate with one another over a communication network. The VM is migrated from the first compute node to a second compute node in the plurality by generating, for memory pages accessed by the VM, page transfer state of one or more local memory pages that are accessed locally on the first compute node, and of one or more externalized memory pages whose access is not confined to the first node. Based on the page transfer state, the migrated VM is provided with access to the memory pages, including both the local and the externalized memory pages, on the second compute node.

Abstract: A method includes, in a plurality of compute nodes that communicate with one another over a communication network, running one or more Virtual Machines (VMs) that access storage blocks stored on non-volatile storage devices coupled to at least some of the compute nodes. One or more of the storage blocks accessed by a given VM, which runs on a first compute node, are cached in a volatile memory of a second compute node that is different from the first compute node. The cached storage blocks are served to the given VM.

Abstract: A method includes running multiple processing tasks on multiple physical processing cores that support general-purpose registers and special-purpose registers. Respective usage levels, with which the processing tasks use the special-purpose registers, are estimated. The physical processing cores are assigned to the processing tasks based on the estimated usage levels of the special-purpose registers.

Abstract: A method includes running on multiple compute nodes respective memory sharing agents that communicate with one another over a communication network. One or more local Virtual Machines (VMs), which access memory pages, run on a given compute node. Using the memory sharing agents, the memory pages that are accessed by the local VMs are stored on at least two of the compute nodes, and the stored memory pages are served to the local VMs.