| Patent application number | Description | Published |
|---|
| 20090319996 | ANALYSIS OF THREAD SYNCHRONIZATION EVENTS - Thread blocking synchronization event analysis software uses kernel context switch data and thread unblocking data to form a visualization of thread synchronization behavior. The visualization provides interactive access to source code responsible for thread blocking, identifies blocking threads and blocked threads, summarizes execution delays due to synchronization and lists corresponding APIs and objects, correlates thread synchronization events with application program phases, and otherwise provides information associated with thread synchronization. The visualization may operate within an integrated development environment. | 12-24-2009 |
| 20100223600 | THREAD EXECUTION ANALYZER - A thread execution analyzer analyzes blocking events of threads in a program using execution data and callstacks collected at the blocking events. The thread execution analyzer attempts to identify an application programming interface (API) responsible for each blocking event and provides blocking analysis information to a user. The blocking analysis information may be used by a developer of the program to understand the causes of blocking events that occur for threads of the program. | 09-02-2010 |
| 20100251160 | MEASUREMENT AND REPORTING OF PERFORMANCE EVENT RATES - Methods and systems are disclosed for measuring performance event rates at a computer and reporting the performance event rates using timelines. A particular method tracks, for a time period, the occurrences of a particular event at a computer. Event rates corresponding to different time segments within the time period are calculated, and the time segments are assigned colors based on their associated event rates. The event rates are used to display a colored timeline for the time period, including displaying a colored timeline portion for each time segment in its associated color. | 09-30-2010 |
| 20110078661 | MARKER CORRELATION OF APPLICATION CONSTRUCTS WITH VISUALIZATIONS - The use of marker(s) in the source code of a program under evaluation. A representation of the marker(s) remains in the binary version of the program under evaluation. During execution, upon executing the marker, data is gathered regarding the timeline of the execution of the marker in the context of overall timeline of execution. A visualization of the marker is then displayed that illustrates the execution of the marker in the context of a larger timeframe of execution. Optionally, the marker may be associated with text, or other data, at least some of which being rendered with the visualization. Accordingly, an application developer, or indeed anyone evaluating the program, may place markers within source code and/or evaluate the timeline of execution of those markers. | 03-31-2011 |
| 20110099329 | ANALYSIS AND TIMELINE VISUALIZATION OF STORAGE CHANNELS - The visualization of a storage access on a timeline that represents various disk access events, such as a storage read event, or a storage write event. The storage access timeline may be formulated using event data gathered regarding storage access events, such as storage read requests, or storage write requests. The timeline may be displayed in conjunction with non-storage events, such as thread events, process events, processor events, or such, in order to give a visual indication of what is causing the storage access events. There may even be a control for displaying an identification of the file being accessed for one or more of the storage access events. With a better understanding of correlation between storage access events and application operation, optimization of the application itself may be achieved to more efficiently interface with the storage medium. | 04-28-2011 |
| 20110099539 | ANALYSIS AND TIMELINE VISUALIZATION OF THREAD ACTIVITY - Analyzing the performance of multi-threaded applications. An analysis and visualization of thread executions is performed on a graphical timeline using samples of thread execution. This allows users to understand when their application threads are executing, what they were executing, the degree of concurrency in thread execution, and the order in which work is performed in their application. The visualizations and analysis also allow users to sample thread execution contexts using a graphical user interface, as well as the generation of execution profile reports that may be filtered for a specific time range of execution and a subset of the threads running in the application. | 04-28-2011 |
| 20110099550 | ANALYSIS AND VISUALIZATION OF CONCURRENT THREAD EXECUTION ON PROCESSOR CORES. - An analysis and visualization is used to depict how a concurrent application executes threads on processor cores over time. With the analysis and visualization, a developer can readily identify thread migrations and thread affinity bugs that can degrade performance of the concurrent application. An example receives information regarding processes or threads running during a selected period of time. The information is processed to determine which processor cores are executing which threads over the selected period of time. The information is analyzed and executing threads for each core are depicted as channel segments over time, and can be presented in a graphical display. The visualization can help a developer identify areas of code that can be modified to avoid thread migration or to reduce thread affinity bugs to improve processor performance of concurrent applications. | 04-28-2011 |
| 20110099554 | ANALYSIS AND VISUALIZATION OF APPLICATION CONCURRENCY AND PROCESSOR RESOURCE UTILIZATION - An analysis and visualization depicts how an application is leveraging computer processor cores in time. The analysis and visualization enables a developer to readily identify the degree of concurrency exploited by an application at runtime. Information regarding processes or threads running on the processor cores over time is received, analyzed, and presented to indicate portions of processor cores that are used by the application, idle, or used by other processes in the system. The analysis and visualization can help a developer understand contention for processor resources, confirm the degree of concurrency, or identify serial regions of execution that might provide opportunities for exploiting parallelism. | 04-28-2011 |
| 20110113407 | Software routine fingerprints in performance data - Program profile data is used to prepare temporal cost-incurrence fingerprints, which show when a given method or method frame incurred specified cost(s) during a period of interest while a program was/is executing. Relationships between methods can be elicited by studying their temporal cost-incurrence fingerprints. Methods which are often good candidates for optimization can be automatically selected by identifying a small set of methods whose amount of cost lies within specified bounds relative to the most costly method, or in absolute terms, and whose respective fingerprints differ from one another. | 05-12-2011 |
| 20110154245 | VISUALIZATION OF STATES OF A PROCESS - A method of providing a visualization of states of a process includes identifying a set of potential states that can occur during the process and a corresponding set of colors, with each color in the set of colors corresponding to one of the potential states. A fixed ordering is established for the set of colors. A timeline graph including a plurality of colored vertical bars is displayed. Each colored vertical bar corresponds to a time interval of the process and includes at least one color selected from the set of colors based on at least one state occurring during the time interval corresponding to the vertical bar. The plurality of colored vertical bars includes a set of multiple-color vertical bars that each include a plurality of colors appearing in a vertical order based on the fixed ordering. | 06-23-2011 |
