Abstract: Systems, methods, and software described herein facilitate accelerated input and output operations with respect to virtualized environments. In an implementation, a computing system passes a process identifier to a kernel driver for a host environment, wherein the process identifier identifies a guest process spawned in a virtual machine and wherein the kernel driver uses the process identifier to determine an allocation of host memory corresponding to guest memory for the guest process and returns the allocation of host memory. Additionally, the computing system performs a mapping of the allocation of host memory to an allocation of guest memory for the guest element.

Abstract: Systems, methods, and software described herein facilitate accelerated input and output operations with respect to virtualized environments. In an implementation, upon being notified of a guest read process initiated by a guest element running in a virtual machine to read data into a location in guest memory associated with the guest element, a computing system identifies a location in host memory associated with the location in the guest memory and initiates a host read process to read the data into the location in the host memory that corresponds to the location in the guest memory.

Abstract: Systems, methods, and software described herein facilitate accelerated input and output operations with respect to virtualized environments. In an implementation, upon being notified of a guest read process initiated by a guest element running in a virtual machine to read data into a location in guest memory associated with the guest element, a computing system identifies a location in host memory associated with the location in the guest memory and initiates a host read process to read the data into the location in the host memory that corresponds to the location in the guest memory.

Abstract: Systems, methods, and software described herein facilitate accelerated input and output operations with respect to virtualized environments. In an implementation, upon being notified of a guest read process initiated by a guest element running in a virtual machine to read data into a location in guest memory associated with the guest element, a computing system identifies a location in host memory associated with the location in the guest memory and initiates a host read process to read the data into the location in the host memory that corresponds to the location in the guest memory.

Abstract: Systems, methods, and software described herein facilitate accelerated input and output operations with respect to virtualized environments. In an implementation, a computing system passes a process identifier to a kernel driver for a host environment, wherein the process identifier identifies a guest process spawned in a virtual machine and wherein the kernel driver uses the process identifier to determine an allocation of host memory corresponding to guest memory for the guest process and returns the allocation of host memory. Additionally, the computing system performs a mapping of the allocation of host memory to an allocation of guest memory for the guest element.

Abstract: A method, system and program code for implementing distributed locks to be maintained through the use of on disk heartbeats. An instance of a node need only maintain a single heartbeat for all locks associated with the node and all of its processes. The node updates its heartbeat by accessing common storage, either virtual or physical, and updating a timestamp value in its heartbeat within a predetermined time interval, otherwise the heartbeat becomes stale. Expired heartbeats can be cleared or broken to allow redistribution of any locks associated therewith. The inventive technique may be implemented in a traditional computer environment or in a fully or partially virtualized environment and requires no use of an IP network or a separate network based lock manager.