Abstract: De-duplication of immutable data items at runtime may include identifying a set of potentially duplicate immutable data items in use by one or more applications. The applications may access the immutable data items through pointers of respective objects corresponding to the immutable data items. A de-duplication component executing distinctly from the applications may analyze the identified set of potentially duplicate immutable data items to determine two or more that have identical content and may then modify one or more pointers of the corresponding objects so that at least two of the pointers point to a single immutable data item.

Abstract: A computer-controlled method can include determining at least one rarely-used field within a class, creating a shadow structure corresponding to the class, and moving the at least one rarely-used field from the class to the shadow structure. The method can also include adding a shadow reference to the class, the shadow reference corresponding to the shadow structure.

Abstract: A computer-implemented method of providing targeted video promotional material includes providing a first video advertisement for presentation by a video display system, receiving an indication that a user chose to skip at least part of the presentation of the first video advertisement, identifying for the user a characteristic associated with the first video advertisement, selecting a second video advertisement based at least in part on the identified characteristic for the user, and providing the second video advertisement for presentation to the user with the video display system, wherein an advertiser is caused to charge for display of video advertisements that are determined to have not been skipped, and not charged for display for video advertisements that are determined to have been skipped.

Abstract: A computer-controlled method can include determining at least one rarely-used field within a class, creating a shadow structure corresponding to the class, and moving the at least one rarely-used field from the class to the shadow structure. The method can also include adding a shadow reference to the class, the shadow reference corresponding to the shadow structure.

Abstract: A computer-implemented method of providing targeted video promotional material includes transmitting a promotional item for display on a video terminal, determining whether the promotional item was skipped, and updating a profile corresponding to the promotional item or a viewer of the promotional item based on whether or not the promotional item was skipped.

Abstract: De-duplication of immutable data items at runtime may include identifying a set of potentially duplicate immutable data items in use by one or more applications. The applications may access the immutable data items through pointers of respective objects corresponding to the immutable data items. A de-duplication component executing distinctly from the applications may analyze the identified set of potentially duplicate immutable data items to determine two or more that have identical content and may then modify one or more pointers of the corresponding objects so that at least two of the pointers point to a single immutable data item.

Abstract: A computer-implemented method of providing targeted video promotional material includes transmitting a promotional item for display on a video terminal, determining whether the promotional item was skipped, and updating a profile corresponding to the promotional item or a viewer of the promotional item based on whether or not the promotional item was skipped.

Abstract: A computer-implemented method of providing targeted video promotional material includes transmitting a promotional item for display on a video terminal, determining whether the promotional item was skipped, and updating a profile corresponding to the promotional item or a viewer of the promotional item based on whether or not the promotional item was skipped.

Abstract: A computer-implemented method of providing targeted video promotional material includes transmitting a promotional item for display on a video terminal, determining whether the promotional item was skipped, and updating a profile corresponding to the promotional item or a viewer of the promotional item based on whether or not the promotional item was skipped.

Abstract: A computer-implemented method of providing targeted video promotional material includes transmitting a promotional item for display on a video terminal, determining whether the promotional item was skipped, and updating a profile corresponding to the promotional item or a viewer of the promotional item based on whether or not the promotional item was skipped.

Abstract: A computer-implemented method of providing targeted video promotional material includes transmitting a promotional item for display on a video terminal, determining whether the promotional item was skipped, and updating a profile corresponding to the promotional item or a viewer of the promotional item based on whether or not the promotional item was skipped.

Abstract: A scheme for profiling function calls for an application is provided. The scheme includes tracking invocations of the application methods and executing a sampling thread concurrently with the application. The executing includes periodically activating the sampling thread to set a flag to a true state and checking if the flag is true for the tracked invocations for the application methods. If the flag is true, then the scheme includes recording a current timestamp for the application method and charging a time difference between the current timestamp and a previous timestamp to the application method. A computer readable media and a system for performing profiling for an application are also provided.

Abstract: One embodiment of the present invention provides a system for performing time measurements during instrumentation-based profiling. The system operates by first measuring time required to execute instrumentation code in isolation. Next, it receives the code to be profiled (user application), inserts the instrumentation code into it, and executes this combined code. The system then measures the time it takes to execute the combined code. Finally, it subtracts the previously obtained instrumentation code execution time from the total combined code execution time, thus obtaining the exact execution time for the user application.

Abstract: A computer-implemented method of providing targeted video promotional material is disclosed. The method includes transmitting a promotional item for display on a video terminal, determining whether the promotional item was skipped, and updating a profile corresponding to the promotional item or a viewer of the promotional item based on whether or not the promotional item was skipped.

Abstract: A low overhead method for identifying memory leaks is provided. The low overhead method includes a) detecting completion of a garbage collection cycle; and b) identifying a boundary between used objects in memory and free memory space. The steps of a) and b) are repeated and then it is determined if there is an existing memory leak based upon evaluation of boundary identifiers. A computer readable media and a system for identifying memory leaks for an object-oriented application are also provided.

Abstract: A method for identifying memory leak causes is provided. The method initiates with tracking a number of allocations of objects during a time period. Potentially leaking objects are identified and object lifetime tracking instrumentation is injected into the code to track potentially leaking objects. Then, object lifetime logs are generated for each of the potentially leaking objects. A computer readable medium and a system are also provided.

Abstract: One embodiment of the present invention provides a system that dynamically configures selected methods for instrument-based profiling at run-time. The system operates by identifying a root method in a target application, wherein methods that are reachable from the root method during execution of the target application are to be instrumented. Upon loading of a new method during execution of the target application, the system identifies methods in the target application that become reachable from the root method through the new method. The system then instruments methods that are reachable, loaded and have not been instrumented before.

Abstract: One embodiment of the present invention provides a system that facilitates configuring selected methods for instrument-based profiling at run-time. The system first identifies a root method in a target application, wherein only methods that are reachable from the root method during execution of the target application are to be instrumented. The system then instruments the root method. Next, while subsequently executing a given instrumented method, the system determines if the given instrumented method is about to be executed for the first time. If so, the system instruments any methods that are called by the given instrumented method, are loaded, and have not been instrumented before.

Abstract: Less data to transmit from a server to a virtual machine on a client is achieved by transmitting only those methods of classes that the executed application actually requires. This is accomplished by taking the classes of the targeted application and statically determining which methods of these classes, as well as of the library classes, can actually be used by the application. A method usage map of usable methods for each class is saved in a file. When the request to download is received from the client, the server consults this map and selectively transmits only those methods that are in it. This saves download time and memory space in the virtual machine and speeds up execution.

Abstract: A profiling program determines a set of routines that impacts the performance of a selected root routine. Because the set of routines impacts the performance of the routine of interest, the members of the set are excellent candidates for profiling in order to more precisely measure the performance the selected root routine. Thus, routines that cannot be reached from the root routine need not be profiled, thereby reducing the amount of profiling code injected into a target program, and thereby reducing execution inefficiency of the target program.