摘要:
Techniques, systems and an article of manufacture for caching in a virtualized computing environment. A method includes enforcing a host page cache on a host physical machine to store only base image data, and enforcing each of at least one guest page cache on a corresponding guest virtual machine to store only data generated by the guest virtual machine after the guest virtual machine is launched, wherein each guest virtual machine is implemented on the host physical machine.
摘要:
A method for providing a cloud environment for provisioning a guest virtual machine instance. The method includes selecting at least one machine from a collection of machines as a management node, wherein the at least one machine includes a hypervisor enabled with nested virtualization capability, deploying a plurality of cloud managers on each management node, selecting at least one machine from the collection of machines as a host node, deploying a plurality of level two hypervisors on each host node, forming a plurality of virtual clouds, wherein each virtual cloud contains at least one of the plurality of cloud managers and one of the plurality of level two hypervisors, and provisioning, via the at least one cloud manager, at least one guest virtual machine instance on top of the at least one level two hypervisors.
摘要:
A method, an apparatus and an article of manufacture for providing a cloud environment for provisioning a guest virtual machine instance. The method includes selecting at least one machine from a collection of machines as a management node, wherein the at least one machine includes a hypervisor enabled with nested virtualization capability, deploying a plurality of cloud managers on each management node, selecting at least one machine from the collection of machines as a host node, deploying a plurality of level two hypervisors on each host node, forming a plurality of virtual clouds, wherein each virtual cloud contains at least one of the plurality of cloud managers and one of the plurality of level two hypervisors, and provisioning, via the at least one cloud manager, at least one guest virtual machine instance on top of the at least one level two hypervisors.
摘要:
The invention is a device comprising a substrate and a material provided on at least a portion of the substrate and having an exposed surface. The exposed surface of the material is non bio-adhesive. The invention further includes a non bio-adhesive material composition and a method of making a device having the same non bio-adhesive surface. The invention further provides a device having a coating of a hydrophobic material. In particular, the hydrophobic material coated portion of the device is resistant to bio-adhesion.
摘要:
A semantic publish/subscribe system enables semantic event routing and allows publishers (resp. subscribers) to use self-defined event schemas to publish (resp. subscribe) events. The constraints on value-based publish/subscribe systems that publishers and subscribers must share the same event schemas are removed. With ontology support, the system conducts event correlation based on their semantics using relational operators. Event sources are searched for subscriptions and selected events are automatically correlated according to subscriptions. The system enables efficient semantic event routing by rewriting the subscription SQL statement, wherein no redundant events are generated.
摘要:
A methodology is presented for discovering and storing end-to-end associations between different types of entities in a system configuration model of a distributed middleware system. First associations are determined, at each distributed system tier, between instances of data and data-container configuration elements. Those first associations point to logical subdivision of a data service that is directly responsible for implementing an instance of data. Second associations are determined, at said each distributed system tier, between said data-container configuration elements and a server infrastructure. Said second associations point to a server infrastructure that hosts said data-container configuration elements. Third associations are composed, within said each distributed system tier, between said instances of data and said server infrastructure, using said first associations and said second associations. Fourth associations are composed, end-to-end, which represent dependency of an application using said instances of data to said server infrastructure.
摘要:
A metric network provides a descriptive model that explicitly expresses the relationships among all metrics of a business enterprise. Performance of each single business entity in the operational level is measured by a set of primitive metrics, each of which measures a specific aspect of the business entity. The primitive metrics construct the base on which the whole metric network is built.
摘要:
An enterprise system includes a plurality of artifacts (e.g., persons, objects, databases, autonomous elements, intelligent agents, information systems, etc), and a smart distance (e.g., a distance which may optimize the performance of the enterprise system) between the plurality of artifacts.
摘要:
A policy-driven approach to Business Performance Management (BPM) evolution is to capture the mechanism of BPM solution evolutions. These policies are executed by the runtime infrastructure which transforms and interprets evolution policies and allows fine granularity controls on solution evolution. At transformation time, the relationship among the event processing progress and the runtime state is derived based on the observation model. Such relationship information allows verification of freshness of migrating data and parallelization of runtime state validation and event processing. Consistent and efficient evolution of BPM solutions transit while event processing is operational.