International Business Machines Corporation

Ian O Partridge

Adam J Pilkington

Andrew Taylor

David Seager Renshaw

Christopher N Bailey

Glyn Normington

David Richard Jones

David Cousins

Dave Renshaw

Andrew Michael Lees

Arthur J Barr

Brian David Peacock

Thomas Van Der Veen

Matthew Paul Wilson

Sandra Hayward

Simon C E Rowland

Enrique Lacal Bereslawski

Simon Charles Edward Rowland

Neil Hardman

Prefetch of microservices for incoming requests. The method determines for an incoming request a Service Level Objective (SLO) requirement for latency of a request type of the incoming request. The method generates a set of possible microservice sequences for the request including a probability of occurrence of each of the possible microservice sequences and determines a set of prefetch permutations for the set of possible microservice sequences. A latency score is calculated for each prefetch permutation and any prefetch permutations that do not meet the SLO requirement for latency of the request type are eliminated. An optimal prefetch permutation of the remaining prefetch permutations is selected by considering a total cost of the prefetch permutation based on a cost of running each microservice in the set of sequences.

Prefetch of microservices for incoming requests

Concepts for middleware in a web framework are presented. One example comprises defining a target object type configured to hold results of a middleware function. A first object for an application is received and a process of the middleware function is performed, using the first object, to generate a process result. Based on the process result, a second object of the target object type is generated, after which the second object is provided to the application.

Middleware in web framework

Concepts for creating a metatype tree for metatype introspection are presented. One example comprises decoding a parent metatype from a synthetic dataset by decoding one or more child metatypes of the parent metatype. The method then comprises creating a metatype tree comprising a parent node and one or more child nodes of the parent node. The parent node comprises the decoded parent metatype and the one or more child nodes of the parent node comprise the one or more decoded child metatypes.

Creating a metatype tree for metatype introspection

Collaborative help for user applications includes: generating a message, the message being reflective of a user's experience in using a user application; sending the message to a collaborative help server to share the message with other users; and receiving a response from the server providing information regarding one or more other users' experience similar to the user's experience reflected in the message.

Collaborative help for user applications

A method manages substantially continuous delivery of a data stream to a mobile communications device through sequential access thereby to respective receivers from a networked arrangement of wireless transceivers at known locations. A current location and velocity of the mobile communications device is determined. Based on a determined current location and velocity of the mobile communications device, a prediction for a next wireless transceiver to be accessed is generated, and a portion of the data stream is pre-cached at a predicted next wireless transceiver.

Pre-emptive content caching in mobile networks

A method apparatus and computer program product is disclosed for adding instrumentation to a body of code to enable generation of code coverage data for said body of code in which used instrumentation code is arranged to be optimized out by a compiler.

Adding instrumentation to a body of code to enable generation of code coverage data

Delivering content to a requesting device over a content delivery network, the content being deliverable in only one or more restricted geographic regions and the requesting device being communicatively connected to a cellular communications service provider via a cellular communications network, the method comprising steps of: receiving a network identifier of the requesting device uniquely identifying the requesting device in the cellular communications network; transmitting a verification message over the cellular communications network for receipt by the requesting device; receiving, from the requesting device, an access control submission; receiving, from the cellular communications service provider, location information corresponding to a geographic location of the requesting device; and in response to a determination that the access control submission derives from the transmitted verification message and the location information indicates the requesting device is in one of the one or more restricted geographic regions, delivering the content to the requesting device.

Location restricted content delivery over a network

A method of performing distributed just-in-time compilation includes sending a first request message from a client platform to a dedicated compilation server requesting just-in-time compilation of a bytecode sequence generated from a set of code for a source program executing on the client platform; compiling the bytecode sequence at the compilation server into a set of machine code instructions executable by the client platform; storing the set of machine code instructions in a repository managed by the dedicated compilation server; sending a notification message indicating that the set of machine code instructions are available from the dedicated compilation server to the client platform; sending a second request message from the client platform to the dedicated compilation server requesting the set of machine code instructions; and accessing the repository to send the set of machine code instructions from the dedicated compilation server to the client platform.

Distributed just-in-time compilation

A method and system for controlling an operation of a Java Virtual Machine (JVM) component on a per-classloader basis. A manifest of a bundle in an Open Services Gateway Initiative (OSGi&#xae;) compliant framework is parsed and metadata in the manifest is identified. The metadata is stored in a Java&#xae; classloader uniquely associated with the bundle. An upcoming performance of an operation which can be affected by a value of the stored metadata is identified by the JVM component. A value of the stored metadata is read from the classloader. The operation of the JVM component is controlled based on the value of the stored metadata.

Controlling java virtual machine component behavior on a per-classloader basis

A system and associated method for utilizing file names for diagnostic data files generated by a runtime environment. The method employs a file counter base that defines a predefined maximum number of files permitted in a file system, a generation number that indicates an instance of the runtime environment, and a file counter that comprises a file name. The file counter circulates by a cycle equal to the file counter base such that the file system uses only a limited disk space. The method determines the generation number per instance of the runtime environment by examining file counters of existing files in the file system. The generation number initializes the file counter for creating file names in the instance of the runtime environment. The method guarantees a longest life span of a diagnostic data file in a file system that has a limited number of files.

System and method for utilizing generational file names for diagnostic data files

A method of identifying a specific object representation in a computer simulation is presented. A computer simulation of a physical room is generated and displayed by a game console. A game controller is integrated with a laser rangefinder to create a laser-integrated game controller that is capable of determining and transmitting, to the game console, a real-time location and spatial orientation of a real physical object that is represented by a computer-generated object representation in the computer simulation. The game controller and laser-integrated game controller are able to identify a specific object representation, which corresponds with the real physical object, based on the real-time location of the laser-integrated game controller, the spatial orientation of the laser-integrated game controller, and the range signal from the laser rangefinder in the laser-integrated game controller to the real physical object.

Growing community of inventors

Eastleigh, United Kingdom

Ian O Partridge