Apple Inc.

Evan M Hoke

Bryan R Hinch

Andrei Dorofeev

John Gregory Dorsey

Daniel Allen Chimene

Aditya Venkataraman

James S Ismail

Jonathan Michael Deutsch

Reza Arastoo

Patrick R Holley

Shirin Dadashi

Mohsen Heidarinejad

Embodiments are presented herein of, inter alia, systems, devices, and associated methods for allocating and distributing power management budgets for classes of tasks being executed by a computer system, based on thermal feedback loops. Specifically, multiple quality-of-service (QoS) tiers may be defined, and each QoS tier may be allocated power based on a different set of thermal feedback loops. QoS tiers including tasks that are invisible to the user may be mitigated more aggressively than QoS tiers including tasks that are visibly supporting user operations.

Quality of service tier thermal control

Systems and methods are disclosed for scheduling threads on an asymmetric multiprocessing system having multiple core types. Each core type can run at a plurality of selectable voltage and frequency scaling (DVFS) states. Threads from a plurality of processes can be grouped into thread groups. Execution metrics are accumulated for threads of a thread group and fed into a plurality of tunable controllers. A closed loop performance control (CLPC) system determines a control effort for the thread group and maps the control effort to a recommended core type and DVFS state. A closed loop thermal and power management system can limit the control effort determined by the CLPC for a thread group, and limit the power, core type, and DVFS states for the system. Metrics for workloads offloaded to co-processors can be tracked and integrated into metrics for the offloading thread group.

Scheduler for amp architecture using a closed loop performance and thermal controller

Closed loop performance controller work interval instance propagation

In one embodiment, an automated user-level testing tool is enhanced to capture additional information about the state of the automated testing, beyond just a screenshot of the application-under-test. In another embodiment, an automated user-level testing tool is enhanced to capture testing state information for multiple points in time (referred to as 'snapshots'), beyond just when the application-under-test crashes. This captured information from one execution of an automated test (one 'test run') is stored in one test log, which can then be viewed using a test log viewer. In one embodiment, the graphical user interface (GUI) for the test log viewer includes four areas: a screenshot area, a test script area, a stack trace area, and a timing area. The content shown in the screenshot area, the test script area, and the stack trace area is specific to a particular point in time during a test (e.g., a particular snapshot).

Capturing and displaying state of automated user-level testing of a graphical user interface application

Growing community of inventors

Milpitas, CA, United States of America

Evan M Hoke