Abstract: A method for managing virtual machine policy compliance. The method for restoring compliance of a virtual machine found to be non-compliant to a compliance rule may comprise detecting non-compliance of a virtual machine using a compliance agent, detaching the virtual machine from a network, creating a copy of a compliance repository volume, mounting the newly requested disk resource having stored the copy of the compliance repository volume, applying a remediation action to the virtual machine, and triggering by the compliance agent a compliance scan for ensuring that the virtual machine complies to the compliance rule.

Abstract: A method, executed by a computer, includes receiving a request to instantiate an instance of a thread-local manager for a particular thread, instantiating the instance of the thread-local manager, and providing global visibility to the instance of the thread-local manager. The method further includes manipulating thread-local variables corresponding to the particular thread and removing all the thread-local variables when the particular thread completes a task. A computer system and computer program product corresponding to the above method are also disclosed herein.

Abstract: Hypercalls for a host machine and guest machines to a hypervisor are intercepted and routed to the hypervisor for execution on a hardware platform, responsive to the hypercall passing hypercall access rules. The intercepting may be performed by a hypercall access control layer that reloads a hypercall table that maps hypercalls from a host machine and guest machines to hypercall handlers, to identify a hypercall access control handler as the hypercall handler for the host machine and the guest machines. Upon passing the hypercall access rules, the hypercall is passed to the hypervisor.

Abstract: An upgrade is performed for a complex programmable logical device (CPLD), the method comprising: splitting a serial vector format (SVF) file into a first SVF sub-file and a second SVF sub-file; generating a first Versa Module Europa (VME) bus file according to the first SVF sub-file; generating a second VME bus file according to the second SVF sub-file; and backing up register information and a pin signal of the CPLD. The method further comprises upgrading a program of the CPLD using the first SVF sub-file and the first VME bus file. The method further comprises using the second SVF sub-file and the second VME bus file to release the pin of the CPLD after the register information and the pin signal of the CPLD are restored by the first SVF sub-file and the first VME bus file.

Abstract: As disclosed herein a method, executed by a computer, includes receiving a request to instantiate an instance of a thread-local manager for a particular thread, instantiating the instance of the thread-local manager, and providing global visibility to the instance of the thread-local manager. The method further includes manipulating thread-local variables corresponding to the particular thread and removing all the thread-local variables when the particular thread completes a task. A computer system and computer program product corresponding to the above method are also disclosed herein.

Abstract: Embodiments of adjustment of a task execution plan at runtime by a task execution engine configured to receive a plan compilation task, the plan compilation task comprising a task execution plan, are provided. An aspect includes receiving a first plan compilation task by the task execution engine through a plan compilation interface. Another aspect includes modifying a task execution plan of the first plan compilation task in response to receiving a second plan compilation task by the task execution engine, the second plan compilation task comprising a task execution plan for modifying the task execution plan of the first plan compilation task. Yet another aspect includes reading a next task in the task execution plan of the first plan compilation task and initiating the next task by the task execution engine.

Abstract: A host machine may host a virtual machine. Virtual machine reboot information, used to reboot the virtual machine in the event of a failure or restart of the virtual machine, may be identified (e.g., file system metadata buffers, a virtual non-volatile random access memory log, user data buffers, and/or data used to reboot the virtual machine such as to perform a reboot mounting operation and/or a reboot replay operation of a volume of data associated with the virtual machine). The virtual machine reboot information may be cached within relatively fast host memory of the host machine (e.g., instead of merely within a relatively slower hard drive or other storage device). In this way, the cached virtual machine reboot information may be quickly retrieved so that the virtual machine may be rebooted in a relatively shorter amount of time.

Abstract: A method and system for deploying a component of a composite application in a data center. An example method includes receiving access data from a traffic manager implementing global load balancing, where the access data is related to client accesses to a composite web application including multiple components hosted by virtual machines in a virtualization infrastructure. The method further includes determining, based on the access data, determining that one of the components of the composite web application receives client accesses that exceed a threshold, identifying a new geographic location for the client accesses that exceed the threshold, instructing the virtualization infrastructure to deploy a new virtual machine at the new geographic location, the deployed virtual machine implementing the determined component of the composite web application, and providing information pertaining to the deployed virtual machine to the traffic manager.

Abstract: A search facility is used to predict the impact of change on events detected in application logic, where the change may involve a computing resource used by or referenced by the application logic and/or by event detection logic. The search may be performed prior to making a change, in order to judge potential impact of the change, or after the change has been made. The search makes the prediction by evaluating semantics of conditions that specify when and/or and how an event will be detected at run-time.

Abstract: A virtualization system includes: a virtualizing means for activating a virtual machine to which identification information identifying the virtual machine is assigned and which is capable of executing a predetermined function; a plurality of virtual machines activated by the virtualizing means; and a correspondence table creating means for creating a function correspondence table in which the identification information assigned to each of the virtual machines is associated with a function to be executed by the virtual machine among functions that can be executed by the virtual machines. The virtual machine specifies an associated function in the function correspondence table on the basis of the identification information assigned to the virtual machine, and executes the specified function.

Abstract: Exemplary embodiments provide techniques for managing VM migrations that use relatively simple and uncomplicated commands or APIs that can be executed through scripts or applications. Configuration and preparation for the conversion may be addressed by one set of command-lets or APIs, while the conversion itself is handled by a separate set of command-lets or APIs, which allows the conversion command-lets to be uncomplex and to require little input. Moreover, the architecture-specific commands can be largely abstracted away, so that the configuration and conversion processes can be carried out through straightforward general commands, which automatically cause an interface (e.g., at the conversion server) to call upon any necessary architecture-specific functionality.

Abstract: A scalable concurrent queue includes a central queue associated with multiple temporary queues for holding batches of nodes from multiple producers. When a producer thread or service performs an insertion operation on the scalable concurrent queue, the producer inserts one or more nodes into a batch in one of the multiple temporary queues associated with the central queue. Subsequently, the producer (or another producer) inserts the batch held in the temporary queue into the central queue. Contention between the multiple producers is reduced by providing multiple temporary queues into which the producers may insert nodes, and also by inserting nodes in the central queue in batches rather than one node at a time. The scalable concurrent queue scales to serve large number of producers with reduced contention thereby improving performance in a distributed data grid.

Abstract: Systems and methods for the management of migrations of virtual machine instances are provided. In response to a request to migrate a virtual machine instance, a migration manager may provide estimates regarding the requested migration before initiating the migration. During the migration process, the migration manager may report status or request instructions regarding the migration based on various determined migration events, thereby facilitating external control of the migration process.

Abstract: A service provider network includes functionality for allowing a customer to influence the placement of virtual machine instances on server computers by specifying a placement strategy. Placement strategies may be shared among customers of the service provider network, and the placement strategies and the publishers of the placement strategies might be rated. Vendor-agnostic placement strategies might also be utilized to identify a service provider network for executing a virtual machine instance. A placement strategy that includes dynamically evaluated parameters might also be utilized to modify virtual machine instances in a customer fleet on an ongoing basis.

Abstract: A device includes a memory, and at least one programmable processor configured to determine, for each warp of a plurality of warps, whether a Boolean expression is true for a corresponding thread of each warp, pause execution of each warp having a corresponding thread for which the expression is true, determine a number of active threads for each of the plurality of warps for which the expression is true, sort the plurality of warps for which the expression is true based on the number of active threads in each of the plurality of warps, swap thread data of an active thread of a first warp of the plurality of warps with thread data of an inactive thread of a second warp of the plurality of warps, and resume execution of the at least one of the plurality of warps for which the expression is true.

Abstract: Systems, methods, and software are described herein for operating a data management system, including a virtual machine agent running within a virtual machine responding to an attach-triggering event, determining selected storage volumes to be attached to the virtual machine based on a request generated by the virtual agent in response to the attach-triggering event, and dynamically attaching the selected storage volumes to the virtual machine.

Abstract: A mechanism is provided for identifying a performance bottleneck of a transaction in a transaction processing system. At a predefined time point, status information of an interaction between the transaction and a processing component among one or more processing components in the transaction processing system is collected. A duration of the interaction on the basis of the status information is determined. In response to the duration exceeding a predefined threshold, the interaction is identified as the performance bottleneck of the transaction in order to make changes to the transaction processing system thereby improving performance.

Abstract: At least one target virtual disk descriptor that describes at least one virtual disk associated with an existing target virtual machine in a target virtualized environment is merged with at least one source virtual disk descriptor that describes at least one virtual disk associated with a source. The merging is carried out to obtain at least one merged virtual disk descriptor compatible with the target virtualized environment. The at least one virtual disk associated with the existing target virtual machine in the target virtualized environment is replaced with the at least one virtual disk associated with the source, in accordance with the at least one merged virtual disk descriptor.

Abstract: A method for performing instruction scheduling in an out-of-order microprocessor pipeline is disclosed. The method comprises selecting a first set of instructions to dispatch from a scheduler to an execution module, wherein the execution module comprises two types of execution units. The first type of execution unit executes both a first and a second type of instruction and the second type of execution unit executes only the second type. Next, the method comprises selecting a second set of instructions to dispatch, which is a subset of the first set and comprises only instructions of the second type. Next, the method comprises determining a third set of instructions, which comprises instructions not selected as part of the second set. Finally, the method comprises dispatching the second set for execution using the second type of execution unit and dispatching the third set for execution using the first type of execution unit.

Abstract: Example methods and systems are directed to dispatching database tasks. An application may access data associated with a task. The data may indicate features (e.g., processing functionality) that will be used to complete the task. The application may determine whether all such features are implemented in the database layer. The application may dispatch the task to the database layer if all features are implemented therein. The application may perform the task in the application layer if one or more of the features are not available in the database layer. In some example embodiments, the task involves materials requirements planning. Such a task may include determining, for a given bill of materials (“BOM”), the quantity of materials available on-hand, the quantity available from suppliers, the transport or delivery time for the various quantities, and other data regarding the BOM.