Hypori, Inc.

International Business Machines Corporation

Phani Achanta

Brian Jay Vetter

Frank Eliot Levine

Robert John Urquhart

Robert Tod Dimpsey

Justin Philip Marston

Sanjay Mijar

Mohammad Salman Dhedhi

Terrimane Shon Pritchett

Muhammad Irfan Azam

Some embodiments may facilitate boot-specific key access to perform cryptographic operations. A first boot record and a second boot record may be generated independently in response to a request to boot a virtual device. The first and second boot records may be compared and in response to a match between the first boot record and the second boot record, an identify certificate may be obtained. Authorization to access and use a key for cryptographic operations may be obtained in response to a verification of the identity certificate by a cryptographic processor.

Boot-specific key access in a virtual device platform

Latency experienced by a user of a client device may be reduced by preloading virtual devices in anticipation of a connection request from the client device. For example, a plurality of virtual devices may be partially loaded prior to a connection request from a client device. In response to the connection request from the client device, a user associated with the client device may be identified and user profile information associated with the user may be retrieved. Based on the retrieved user profile information associated with the user, a virtual device, from among the plurality of preloaded virtual devices, may be loaded, such that the loading of the virtual device is complete and is specific to the user of the client device.

Preloading of virtual devices in anticipation of a connection request from a physical device

Systems, methods and computer program products that enable efficient roaming of virtual mobile devices. In one embodiment, multiple PoP locations having a set of common master images are maintained. A communication from a mobile device received at a central facility identifies a user, a location and a type of the mobile device. The central facility determines performance measures for the PoP locations and identifies a preferred PoP location in response to the communication. If the preferred PoP location has available capacity, the central facility directs the preferred PoP location to provision resources and instantiate a virtual device from a selected master image corresponding to the mobile device. If the preferred PoP location persistently stores a user data volume for the user, the virtual device is attached to the stored user data volume. Otherwise, data is transferred from the user's data volume to a cache attached to the virtual device.

System, method and computer program product for connecting roaming mobile devices to a virtual device platform

A method and system for determining the memory utilization of a heap are provided. With the method and system, object allocations and optionally, possible memory freeing events are used to initiate a mark-and-count operation. The mark-and-count operation marks the live objects and maintains a running count of their memory bytes allocated to the live objects, referred to as a live count. The execution of the mark-and-count operation may be dependent upon various criteria including thresholds, functions of the live count, peak live counts, number of memory bytes allocated since a previous mark-and-count operation was performed, and the like. In addition to the live count, a total number of bytes allocated to objects may be maintained in order to obtain information regarding the heap memory utilization.

Method and system for determining memory usage of a heap

A method and system for determining the memory utilization of a heap are provided. With the method and system, object allocations and optionally, possible memory freeing events are used to initiate a mark-and-count operation. The mark-and-count operation marks the live objects and maintains a running count of their memory bytes allocated to the live objects, referred to as a live count. The execution of the mark-and-count operation may be dependent upon various criteria including thresholds, functions of the live count, peak live counts, number of memory bytes allocated since a previous mark-and-count operation was performed, and the like. In addition to the live count, a peak live count may be obtained and updated as new peak live counts are identified. When the peak live count is updated, additional information may be obtained via a heap dump, arcflow tree, or the like.

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Austin, TX, United States of America

Phani Achanta