Advanced Micro Devices Corporation

Ati Technologies Ulc

International Business Machines Corporation

Fei Fei

Alexander J Branover

Mihir Shaileshbhai Doctor

Xiaojie He

Ming L So

Biao Zhou

Evgeny Mintz

Felix Yat-Sum Ho

Ting Wang

Yang Liu

Qi Cheng Li

Yi Bu Li

Qing Shan Zhang

Xiao Ping Guo

Gui Haochen

Yangming Wang

Xiao Hua Zeng

Hua Qing Li

Instruction cache behavior and branch prediction are used to improve the functionality of a computing device by profiling branching instructions in an instruction cache to identify likelihoods of proceeding to a plurality of targets from the branching instructions; identifying a hot path in the instruction cache based on the identified likelihoods; and rearranging the plurality of targets relative to one another and associated branching instructions so that a first branching instruction that has a higher likelihood of proceeding to a first hot target than to a first cold target and that previously flowed to the first cold target and jumped to the first hot target instead flows to the first hot target and jumps to the first cold target.

Instruction cache behavior and branch prediction

A computer processing device transitions among a plurality of power management states and at least one power management sub-state. From a first state, it is determined whether an entry condition for a third state is satisfied. If the entry condition for the third state is satisfied, the third state is entered. If the entry condition for the third state is not satisfied, it is determined whether an entry condition for the first sub-state is satisfied. If the entry condition for the first sub-state is determined to be satisfied, the first sub-state is entered, a first sub-state residency timer is started, and after expiry of the first sub-state residency timer, the first sub-state is exited, the first state is re-entered, and it is re-determined whether the entry condition for the third state is satisfied.

Power state transitions

Multi-tiered low power states

Growing community of inventors

Shanghai, China

Fei Fei