Abstract: A method for translating instructions for a processor. The method includes accessing a plurality of guest instructions that comprise multiple guest branch instructions comprising at least one guest far branch, and building an instruction sequence from the plurality of guest instructions by using branch prediction on the at least one guest far branch. The method further includes assembling a guest instruction block from the instruction sequence. The guest instruction block is translated to a corresponding native conversion block, wherein an at least one native far branch that corresponds to the at least one guest far branch and wherein the at least one native far branch includes an opposite guest address for an opposing branch path of the at least one guest far branch. Upon encountering a missprediction, a correct instruction sequence is obtained by accessing the opposite guest address.

Abstract: A Global Navigation Satellite System (GNSS) chipset embedded within the cellular device is accessed. The GNSS chipset calculates raw observables that include raw pseudoranges and carrier phase information. The raw observables are extracted from the GNSS chipset for processing elsewhere in the cellular device outside of the GNSS chipset. Smoothed pseudoranges are provided by smoothing the raw pseudoranges based on the carrier phase information. The accessing, the extracting and the providing are performed by one or more hardware processors located in the cellular device and outside of the GNSS chipset.

Abstract: Systems, methods and articles of manufacture for rendering an image. Embodiments include selecting a plurality of positions within the image and constructing a respective linear prediction model for each selected position. A respective prediction window is determined for each constructed linear prediction model. Additionally, embodiments render the image using the linear prediction models using the constructed linear prediction models, where at least one of the constructed linear prediction models is used to predict values for two or more of a plurality of pixels of the image, and where a value for at least one of the plurality of pixels is determined based on two or more of the constructed linear prediction models.

Abstract: Methods and systems may provide for detecting an event external to a plurality of virtual machines running on one or more physical machines and determining that the event corresponds to one or more error conditions associated with at least one particular virtual machine in the plurality of virtual machines. Additionally, an alert may be generated in response to at least one of the one or more error conditions. In one example, detecting the event includes detecting an emulated device interrupt associated with the at least one particular virtual machine.

Abstract: Described are techniques for processing command requests. A plurality of requests are issued from a client to a server. The server has a current configuration. Each of the plurality of requests requests a portion of current configuration information describing the current configuration of the server. Response are sent from the server to the client. Each response includes a portion of the current configuration information describing the current configuration of the server. A first set of configuration files is determined in accordance with portions of the current configuration information included in the responses. The client services a second plurality of command requests using a simulator by processing the second set of command requests in accordance with a simulation mode and the first set of one or more configuration files.

Abstract: A non-transitory computer program product with computer readable program code for system detection and flow control. The throughput and response time of the system are acquired, where the throughput reflects the number of requests from outside the system that has been processed by the system. The response time reflects time required by the system to process requests from outside the system. Acquiring throughput and response time includes directly sampling the throughput and the response time of the system; and conducting noise filtering on the sampled throughput and response time. A system performance characteristic parameter based on the filtered throughput and response time is obtained and is used to describe congestion condition of the system to determine whether there is a bottleneck in the system. Detecting a bottleneck and flow control is provided in a simple and effective way to ensure that requests are processed in time.

Abstract: Methods, systems, and computer programs, for estimating think times. One of the methods includes receiving a request to perform a test of one or more computing resources. The test of the one or more computing resources is performed by simulating an interaction of one or more simulated users with the one or more computing resources. Requests are submitted from the simulated user for execution by the one or more computing resources. Respective response times of the one or more computing resources to each of the requests are measured. An estimated think time of the simulated user is computed, wherein the estimated think time is computed based on at least one preceding response time.

Abstract: Systems and methods are described for conducting work flows by an SIEM device to carry out a complex task automatically. According to one embodiment, an SIEM device may create a work flow that includes multiple security tasks that are performed by one or more security devices. When a security event is captured or the work flow is scheduled to be executed, the SIEM device starts the work flow by scheduling the security tasks defined in the work flow. The SIEM device then collects results of security tasks performed by the one or more security devices.

Abstract: A pluggable asset detection engine is used to identify devices within a network. The pluggable asset detection engine includes a set of pluggable discovery sensors and is adapted to identify particular address information of a particular computing device within a network, using a first pluggable discovery sensor in the set of discovery sensors, and send an identification of the particular address information of the particular computing device to an asset management system for inclusion of the particular address information in an asset repository managed by the asset management system.

Abstract: According to one aspect of the present disclosure, a method comprises receiving a command to load first compiled program code for execution by a processor. The first compiled program code is decompiled to generate source code. The source code is compiled to generate second compiled program code, the second compiled program code comprising information associated with the source code. The second compiled program code is provided to a debugger.

Abstract: An application alerting system includes a computing system that executes an application alerting service monitor at least one of multiple computing resources configured in a computing infrastructure to determine whether the one monitored computing resource experiences a failure. When a failure is detected, the service transmits a failure notification to applications associated with the failed monitored computing resource such that the application may perform at least one remedial action according to the received failure notification.

Abstract: A computer worm containment system comprises a detection system and a blocking system. The detection system orchestrates a sequence of network activities in a decoy computer network and monitors that network to identify anomalous behavior and determine whether the anomalous behavior is caused by a computer worm. The detection system can then determine an identifier of the computer worm based on the anomalous behavior. The detection system can also generate a recovery script for disabling the computer worm or repairing damage caused by the computer worm. The blocking system is configured to use the computer worm identifier to protect another computer network. The blocking system can also use the recovery script to disable a computer worm within the other network and to repair damage caused to the network by the worm.

Abstract: A redirected USB device that does not fall within well-defined device-classes requires special treatment as redirection software will not always permit the servicing of universal serial bus request blocks (URB) on the same thread that the URBs are received. This results in the redirected USB device not functioning properly. A virtual USB bus driver may intercept the URBs so that a temporary kernel buffer can be created. The temporary kernel buffer stores the data necessary for processing the URBs. The temporary kernel buffer is queued along with the URB so that regardless of the thread for processing the URB, the data associated with the URB is preserved so that the vendor-specific application at the client may properly service any request.

Abstract: A test case is executed on a product using a hardware machine, the product being configured in manufacturing according to a configuration, the test case being related to an estimation function. A set of data points resulting from the executing is collected. Using the estimation function, an estimated time needed for the executing is computed. Using the set of data points, an actual time used for the executing is computed. A determination is made whether a difference between the estimated time and the actual time is within a tolerance. Responsive to the difference not being within the tolerance, the estimation function is adjusted using the set of data points and at least one other set of data points, the other set of data points being generated by executing the test case on a second product configured according to a second configuration at a previous time.

Abstract: Implementations of the present disclosure provide computer-implemented methods including defining a workload comprising a plurality of service requests, each service request corresponding to a class of a plurality of classes, applying the workload to a computer system that receives and processes service requests, measuring a response time of the computer system for each request of the workload, estimating a mean service demand for each class based on the response times and a base queuing model that represents the computer system, and generating the queuing model based on the mean service demands and characteristics of the workload.

Abstract: Provided method includes storing a first cache snap shot including cache profiling information regarding a cache when a first process being executed by a cycle accurate simulator is terminated; storing a second cache snap shot including the cache profiling information on the cache when a second process is executed in the cycle accurate simulator; comparing the second cache snap shot of the second process and the first cache snap shot of the first process to readjust any one value of a cache hit value and a cache miss value which are present in the second cache snap shot of the second process; and correcting the cache profiling information which is stored in the first cache snap shot of the first process by reflecting the readjusted any one value of the cache hit value and the cache miss value present in the second cache snap shot of the second process.

Abstract: In one embodiment, a device in a network monitors performance data for a first predictive model. The first predictive model is used to make proactive decisions in the network. The device maintains a supervisory model based on the monitored performance data for the first predictive model. The device identifies a time period during which the supervisory model predicts that the first predictive model will perform poorly. The device causes a switchover from the first predictive model to a second predictive model at a point in time associated with the time period, in response to identifying the time period.

Abstract: Embodiments of apparatuses and methods for processing virtualization events in a layered virtualization architecture are disclosed. In one embodiment, an apparatus includes a event logic and evaluation logic. The event logic is to recognize a virtualization event. The evaluation logic is to determine whether to transfer control from a child guest to a parent guest in response to the virtualization event.

Abstract: A testbench for testing a device under test (DUT), wherein the testbench has a verification environment including a reference model, a scoreboard and a customized agent for each interface that the DUT needs to receive input from and/or transmit output on. The testbench system is able to be generated by a testbench builder that automatically creates a scoreboard, a reference model, a dispatcher and generic agents including generic drivers, loopback ports, sequencers and/or generic monitors for each interface and then automatically customize the generic agents based on their corresponding interface such that the agents meet the requirements of the interface for the DUT.

Abstract: Embodiments relate to a control area for managing multiple threads in a computer. An aspect is a computer system that includes a virtual machine (VM) configuration with one or more cores. Each core is enabled to operate in a single thread (ST) mode or a multithreading (MT) mode. The ST mode consists of a single thread and the MT mode consists of a plurality of threads on shared resources of a respective core. The computer system includes a core-oriented system control area (COSCA) having a common area representing all of the cores of the VM configuration and separate core description areas for each of the cores in the VM configuration. Each core description area indicates a location of one or more thread description areas each representing a thread within the respective core, and each thread description area indicates a location of a state description of the respective thread.

Abstract: Systems and methods are disclosed for cross-system storage management for transferring data across autonomous information management systems. Data may be transferred from one information management system to another information management system without interfering with or overriding each system's autonomy. For example, a secondary copy of production data (e.g., backed up data) is transferred from a first information management system that originated the data to a component of another “foreign” information management system. A first storage manager that manages the first information management system also manages the cross-system data transfer operation to a “foreign” client computing device, which remains under autonomous management as a component of the foreign information management system.

Abstract: Embodiments of the present invention provide a method and an apparatus for network traffic simulation. The method includes: obtaining traffic information and user requirement information of a to-be-simulated IP network; analyzing the traffic information to generate a traffic characteristic; according to correspondence between user requirement information and traffic models, obtaining a traffic model corresponding to the user requirement information; and generating, through simulation, traffic of the to-be-simulated IP network according to the traffic characteristic and the traffic model. The embodiments of the present invention can improve flexibility and an emulation degree of traffic simulation.

Abstract: Operating characteristics associated with NAND flash memory can be modified and/or emulated to support corresponding operating characteristics for two-terminal memory. As a result, NAND flash memory modules included in conventional NAND flash memory devices (e.g., memory cards, solid-state drives, etc.) can be replaced with two-terminal memory without substantial changes to manufacturing infrastructure associated with the manufacture of these NAND flash memory devices.

Abstract: In an approach to manage isolation requirements of a multi-node workload application, a computer determines one or more first isolation levels for each of a plurality of workload nodes. The computer receives performance data for the plurality of workload nodes and analyzes the performance data for statistical trends in the performance data. The computer identifies an adverse trend in the statistical trends of the performance data and identifies a root cause of the adverse trend in the performance data. The computer then identifies one or more second isolation levels required to meet performance targets, the second isolation levels including an adjustment to the first isolation levels for the plurality of workload nodes.

Abstract: In an approach to manage isolation requirements of a multi-node workload application, a computer determines one or more first isolation levels for each of a plurality of workload nodes. The computer receives performance data for the plurality of workload nodes and analyzes the performance data for statistical trends in the performance data. The computer identifies an adverse trend in the statistical trends of the performance data and identifies a root cause of the adverse trend in the performance data. The computer then identifies one or more second isolation levels required to meet performance targets, the second isolation levels including an adjustment to the first isolation levels for the plurality of workload nodes.

Abstract: Optimized extended context management for virtual machines is disclosed. An example system includes a memory, processor, VM, and kernel, which executes the VM using guest space, stores a guest state in an extended state register, which the VM has access to, receives an instruction, saves the guest state, and determines whether the kernel is configured to handle the process using kernel space. If so, the process is handled using kernel space without using user space, and if not, a user state in the extended state register is restored, the process is handled using user space, an updated user state is stored in the extended state register, the updated user state is saved, and the guest state is restored in the extended state register. Finally, execution of the VM using the guest space is resumed.

Abstract: The invention relates to a computer-assisted method for generating a software-based analysis module for analysis of electronic raw data representing a detected stimulus response of a test subject in a test project.

Abstract: A system can correlate derived metrics for system activity to determine problems and recommend solutions. Using a hierarchy of derived metrics from a set of raw metrics, a system can identify a problem, correlate related metrics and determine a recommended solution. For example, raw metrics can be collected about computing resources. Analyzers can process the raw metrics and outputs from other analyzers to gather metrics that include metrics derived from other metrics. When a problem symptom is discovered, derived metrics (and other metrics) can be correlated with the symptom to help identify the problem. Using the correlated metrics, a system can recommend a solution to an identified problem.

Abstract: Systems and methods for forecasting behavior of caches include a hypothetical cache. The hypothetical cache is configured to emulate cache behavior, and performance metrics for the hypothetical cache are determined, where the performance metrics may be based on cache hits/misses. Performance metrics for a real cache of a processor core of a processing system may also be similarly determined. Behavior of the real cache is forecast based, at least, on performance metrics of the hypothetical cache, and in some cases, also on performance metrics of the real cache (e.g., based on a comparison of the performance metrics). Actions may be recommended and/or performed based on the forecast, where the actions include modifying the real cache size, associativity, or allocation for processor cores, migrating a task running in one processor cluster to another processor cluster, or for collecting data for the real cache for offline analysis.

Abstract: For a design under test (DUT) that is to be emulated, a host system partitions the DUT into multiple partitions and maps each partition to an FPGA of an emulator which will emulate the partition. The host system stores information describing to which FPGAs each component of the DUT has been mapped. Additionally, mapped to each FPGA is trace and injection logic that traces signals exchanged by the FPGA with other FPGAs during emulation of the DUT. After the emulation of the DUT is complete, if a user wishes to debug a component of the DUT, the FPGAs that are configured to emulate the component are identified. For each identified FPGA, the trace and injection logic injects previously traced signals into the logic of the FPGA in order to reemulate the component. The host system generates waveforms for the user that include signals traced during the reemulation of the component.

Abstract: A streaming source sends streaming content to a display device. A camera captures images of the display device playing the streaming content and/or a user's interaction with the display device along with the displayed response to the user's interaction. The captured content is analyzed to determine, for example, image quality characteristics of the displayed content, a user experience associated with the displayed content or whether the displayed content matches an expected outcome associated with testing input. Information determined from the analysis of the captured content may be used to adjust characteristics of the streaming content, such as streaming parameters at the streaming source or configuration of the display device. A testing system may analyze the captured content to evaluate performance of the streaming system. Results of the testing may be sent to a data store and/or used to mitigate a poor user experience such as poor image quality.

Abstract: Embodiments include systems and methods for authorizing software code to be executed or access capabilities in secure operating environments. Profiles may be issued by trusted entities to extend trust to other entities to allow those other entities to provide or control execution of applications in a secure operating environment such as on particular computing devices. The profiles allow entities to add software code to the device without reauthorizing each distribution by a trusted authority such as testing, quality assurance, or to limited groups of devices controlled or authorized by the other entities.

Abstract: Provided is a method of a mobile system, comprising executing an application at the mobile system, determining an execution condition of the application, and controlling a performance of the mobile system in response to a result of the determined execution condition before the application performs an actual workload. The mobile system optimization method enhances the performance of the mobile system by utilizing the same resources.

Abstract: One aspect relates to a communication protocol for communicating between one or more entities, such as devices, hosts or any other system capable of communicating over a network. A protocol is provided that allows communication between entities without a priori knowledge of the communication protocol. In such a protocol, for example, information describing a data structure of the communication protocol is transferred between communicating entities. Further, an authentication protocol is provided for providing bidirectional authentication between communicating entities. In one specific example, the entities include a master device and a slave device coupled by a serial link. In another specific example, the communication protocol may be used for performing unbalanced transmission between communicating entities.

Abstract: A test-centric model of an application is constructed. Each resource specified by each test governing an application is added to the test-centric model. The test or tests specifying an resource are linked to the resource within the test-centric model. A composition of the application is defined using the one or more tests, as the resources specified by the one or more tests, within the test-centric model of the application.

Abstract: Systems and methods for intercepting computing device system calls for a computing device including a kernel having a system call table. A hypervisor is executed on the computing device, the hypervisor configured to control at least one of the computing device processor registers. At least one modified kernel structure is created, the modified kernel structure including a modified system call table. A memory address of an original system call handler is determined, the original system call handler configured to receive kernel operation commands. A size of a loaded image of the original system call handler is determined. A copy of the original system call handler as a second system call handler is created, and the second system call handler intercepts a computing device system call.

Abstract: Embodiments of the present invention provide a method, system and computer program product for extensible definition of interactive system productivity facility (ISPF) panels. In an embodiment of the invention, a method for extensibly defining ISPF panels can include loading a panel defined by different panel definition statements recognizable by an ISPF facility, and identifying a panel input exit facility amongst the panel definition statements defining the panel. Of note, the panel input exit facility references an external exit module. The method also can include determining an external exit module referenced by the panel input exit facility. Finally, the method includes passing records of the panel to the external input exit facility for pre-processing of the panel outside of the ISPF facility.

Abstract: Systems and methods are presented for detecting, by a universal serial bus (USB) drive operatively coupled with a computing device, power from the computing device, and determining, by the USB drive, that drivers associated with the USB drive have been installed on the computing device. The systems and methods may determine that drivers associated with the USB drive have been installed by sending, to the computing device, a digital signal indicating a predetermined keystroke until the USB drive receives a response from the computing device, and receiving, from the computing device, a feedback response to the digital signal indicating the predetermined keystroke has been received. The systems and methods further executing, by the USB drive, a macro to download a payload to the computing device from a server computer, causing by the USB drive, the payload to execute on the computing device, and causing, by the USB drive, the downloaded payload to be deleted from the computing device.

Abstract: Methods and systems configured to facilitate monitoring of multiple remote desktops in a user interface of a wireless device are provided. One example method includes maintaining image data representing a prior state of graphical displays of a plurality of graphical user interfaces associated with the remote desktops, in response to receiving a first request specifying first display information from the wireless device, preparing first update information for a first scaled image corresponding to content of a first graphical display, wherein the first scaled image contains image data defining a lower resolution version of a current state of a first graphical display out of the graphical displays, the scaled version is being sized according to the first display information received from the wireless device, and transmitting the prepared first update information to the wireless device to be displayed in the user interface.

Abstract: A computer system comprises: a forwarding node(s) that processes a packet received from any other apparatus based on a packet handling operation; a communication control server that controls the packet handling operation stored in the forwarding node(s); and a physical server(s) on which a virtual server operates, wherein the communication control server stores a topology of a communication network including the forwarding node(s) and the physical server(s) and an operating status of a virtual server(s) connected to the communication network, requests resuming an operation of a virtual server(s) in a suspended state upon occurrence of a communication request to the suspended virtual server(s), and sets a communication path for forwarding a packet for the communication request in the forwarding node(s), based on a location at which the suspended virtual server(s) is connected to the communication network after resumption of the operation.

Abstract: A target data storage system is simulated. A source configuration is received. First activity data is received representing workload for the source configuration. A target data storage system configuration for one or more target data storage systems is created. The target data storage system configuration is modeled including determining a simulated workload for components of the target data storage system configuration based on the first activity data. A utilization map is displayed in a user interface indicating component level utilizations of components of the target data storage system configuration based on the simulated workload. A data movement optimization for the target data storage system configuration is simulated. A second utilization map is displayed indicating updated component level utilizations for the target data storage system configuration which have been revised to model the simulated data movement optimization for the target data storage system configuration.

Abstract: In an approach to allocating hypervisor resources for virtual machine deployment, one or more computer processors determine one or more hierarchically grouped computing resources within a hypervisor. The one or more computer processors receive a selection of one or more hierarchically grouped computing resources. The one or more computer processors apply deployment constraints for a workload to the selected one or more hierarchically grouped computing resources. The one or more computer processors determine, based, at least in part, on the deployment constraints for the workload, one or more computing resources from the one or more hierarchically grouped computing resources.

Abstract: Methods and apparatus for an account state simulation service for cloud computing environments are disclosed. A system includes a plurality of service managers coordinating respective distributed network-accessible services, and a metadata manager. The metadata manager receives an account state change simulation request, indicating (a) an initial account state of a client account and (b) a collection of operations to be simulated. The metadata manager generates a response to the account change state simulation request, comprising at least one of (a) a representation of an expected end state of the client account reachable as a result of performing the collection of operations (b) an indication of an expected failure of a particular operation of the collection of operations or (c) an estimate of an expected billing amount associated with an implementation of the collection of operations.

Abstract: A method for developing and testing an application for a device with one or more sensors using a sensor emulation environment that may allow testing of the application in a programmatic manner. The sensor emulation environment may emulate actual physical sensors. The sensor emulation environment may receive sensor simulation data from multiple types of sources of sensor data. A sensor data engine may receive sensor simulation data from a selected data source via an API. The data engine may provide data values at times that represent operation of a sensor. The sensor emulation environment may further include a sensor interface component that emulates a hardware interface to the emulated sensor in a physical target device such that application components, such as a driver, may interact with the sensor emulation environment.

Abstract: Systems and methods for optimizing operation of a physical device in a virtualized computing environment are provided. The method comprises monitoring instructions issued by an application running on a virtual machine's (VM) operating system, wherein the VM is hosted by a hypervisor providing access to a physical device connected to a virtualized computing environment; wherein a device driver supported by the operating system issues one or more instructions to an emulated device supported by the hypervisor to control the physical device according to the issued instructions, wherein the emulated device's registers are implemented in memory of the hypervisor and the instructions issued by the device driver are stored in said registers, wherein the hypervisor handles the instructions, in response to learning that the instructions are stored in said registers.

Abstract: Embodiments of the present invention provide methods, systems, and computer program products for building an environment. Embodiments of the present invention can be used to allocate resources and build an environment such that the environment is built when a user is prepared to test one or more portions of code in the environment. Embodiments of the present invention can be used to reduce the “lag time” developers experience between waiting for the code to be built and for resources to be provisioned, and can also provide a less costly alternative to maintaining and operating dedicated environments.

Abstract: A method, apparatus and computer readable medium for visualizing an event from unstructured data is described, including generating a plurality of structured data units from a plurality of unstructured data, each structured data unit having a time value, an identity value, a location value and a behavior value; and generating a data structure comprising a sequence of the structured data units.

Abstract: Described are techniques for performing data storage optimizations. A reserved workload for a first of a plurality of storage tiers is determined. Each of the plurality of storage tiers is characterized by a set of one or more attributes. The first storage tier includes performance characteristics which are any of incomplete, unknown, and unable to be predictively modeled for various workloads. The plurality of storage tiers includes the first tier and a remaining set of additional storage tier(s). Performance is modeled of a first workload distributed among the remaining set of storage tiers. The first workload represents a total workload less the reserved workload. One or more data movements are determined in accordance with the modeling. Each data movement moves a data portion from a first physical device of one of the plurality of storage tiers to a second physical device of another of the plurality of storage tiers.

Abstract: Systems and methods are described for conducting work flows by an SIEM device to carry out a complex task automatically. According to one embodiment, an SIEM device may create a work flow that includes multiple security tasks that are performed by one or more security devices. When a security event is captured or the work flow is scheduled to be executed, the SIEM device starts the work flow by scheduling the security tasks defined in the work flow. The SIEM device then collects results of security tasks performed by the one or more security devices.

Abstract: Embodiments include systems and methods for optimization of micro-benchmark analysis for microprocessor designs. For example, embodiments seek to generate a suite of micro-benchmarks and associated weighting factors, which can be used to effectively define a weighted aggregate workload condition for a fine-grained (e.g., RTL) simulation in a manner that is a sufficient proxy for predicted commercial workload conditions. The suite of micro-benchmarks can be appreciably more efficient to simulate than the commercial workload, so that using the suite of micro-benchmarks as a proxy for the commercial workload can provide many benefits, including more efficient iterative design.