Microsoft Technology Licensing, LLC

John Eldridge

Gregory Hogdal

Amjad Hussain

Larry Alan Morris

Lloyd Alfred Moore

Marc Shepard

David Michael Sauntry

Bor-Ming Hsieh

Michael J Thomson

Susan Annette Loh

Susan A Dey

Jonathan M Tanner

Todd W Squire

David Nister

Derek L Knee

Gerhard A Schneider

Djordje Nijemcevic

Anh Phuong Tran

Christopher Maurice Mei

Steven Oliver Elliott

Robert W Havlik

Ronald Boskovic

The technology disclosed herein provides various embodiments for mapping glints that reflect off from an object to light sources responsible for the glints. Embodiments disclosed herein are able to correctly map glints to light sources by capturing just a few images with a camera. Each image is captured while illuminating the object with a different pattern of light sources. A glint free image may also be determined. A glint free image is one in which the glints have been removed by image processing techniques.

Mapping glints to light sources

Managing power-consuming resources on a first computing device by time-based and condition-based scheduling of data delivery from a plurality of second computing devices. A scheduler executing on the first computing device has knowledge of recurrent schedules for activation by the second computing devices. The first computing device determines availability of the power-consuming resources and adjusts an activation time for the schedules to use the power-consuming resources when the resources are available. Managing the schedules associated with the second computing devices preserves battery life of the first computing device.

Scheduling data delivery to manage device resources

Two or more sets of measurement data can be independently collected from causally related characteristics or elements. Such measurements can be synchronized with one another through the identification of a correct offset between their measurement data. An identification of the nature of the causal relationship between the measured characteristics can identify relevant ranges within which the aggregate values of one of the measurements can be obtained. As the offset between the measurements is adjusted, the aggregate values can change and a derivative, or other meaningful function based on the aggregate values can be calculated. The meaningful function, or subsequent functional result of it, can inform a range of offsets within which a local extreme value can be identified. The offset corresponding to such a local extreme value can be the correct offset.

Correlating power consumption with CPU activity

A system and method for logging events processed by an operating system is provided. The events logged can include interrupt and non-interrupt events, and can include user-defined events. Information concerning the interrupt events is initially written, during event handling time, into a first buffer while information concerning non-interrupt events is initially written, during event handling time, into a second buffer. Information from the two buffers is then written to a third buffer not during event handling time. Separating the interrupt event buffer from the non-interrupt event buffer rather than having one buffer, and writing relatively small amounts of data during event handling time to memory, rather than transporting data to slower non-memory mapped devices allows the event logger to be less intrusive and facilitates greater accuracy in event logging. Data stored in the third buffer can be accessed by a viewing component, which facilitates displaying data in a manner useful to diagnose operating systems.

Operating system event tracking and logging

A method of acquiring software profile information of a target software application includes receiving a programmed interrupt while executing an application in a computer system, servicing the interrupt such that call stack information is acquired and processing the call stack information to produce statistical information concerning function calls. The call stack information includes program counter and other information which is derived from the target application as well as operating system. Some or all of the call stack information may be recorded. The statistical information includes statistics concerning the number of samples wherein a series of functions calls are included in the call stack information and the number of samples wherein a set of function calls are at the top of the call stack information.

Method and system for a call stack capture

A method of acquiring software profile information of a target software application includes Monitoring an application program for system calls, detecting a system call of interest to the user, acquiring stack information, and processing the call stack information to produce statistical information concerning function calls. The call stack information includes program counter and other information which is derived from the target application as well as operating system. The call stack information may be recorded. The statistical information includes statistics concerning the number of samples that any one function call is at a top of the call stack information, the number of samples that a series of functions calls are included in the call stack information, and the number of samples that a set of function calls are at the top of the call stack information.

Method and system for a system call profiler

Systems and methods are described for replicating virtual memory translation from a target computer on a host computer, and debugging a fault that occurred on the target computer on the host computer. The described techniques are utilized on a target computer having a processor that has halted execution. Virtual to physical address translation data from the target computer is transferred to the host computer. The host computer utilizes the virtual to physical address translation data to access data pointed by virtual memory addresses that were used by the target computer, and then debugs a fault by accessing the data by reading the physical memory addresson the host computer. After the virtual to physical memory address translation data have been acquired, they can be cached at the host computer.

Systems and methods for replicating virtual memory on a host computer and debugging using replicated memory

Systems and methods are described for replicating virtual memory translation from a target computer on a host computer, and debugging a fault that occurred on the target computer on the host computer. The described techniques are utilized on a target computer having a processor that has halted execution. Virtual to physical address translation data from the target computer is transferred to the host computer. The host computer utilizes the virtual to physical address translation data to access data pointed by virtual memory addresses that were used by the target computer, and then debugs a fault by accessing the data by reading the physical memory address on the host computer. After the virtual to physical memory address translation data have been acquired, they can be cached at the host computer.

Operating system event tracker having separate storage for interrupt and non-interrupt events and flushing the third memory when timeout and memory full occur

Systems and methods for replicating virtual memory on a host computer and debugging using the replicated memory

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Bellevue, WA, United States of America

John Eldridge