Apple inc. (20240095031). Thread Channel Deactivation based on Instruction Cache Misses simplified abstract

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Thread Channel Deactivation based on Instruction Cache Misses

Organization Name

apple inc.

Inventor(s)

Justin Friesenhahn of Austin TX (US)

Benjiman L. Goodman of Austin TX (US)

Thread Channel Deactivation based on Instruction Cache Misses - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240095031 titled 'Thread Channel Deactivation based on Instruction Cache Misses

Simplified Explanation

The patent application relates to techniques for instruction scheduling in the context of instruction cache misses.

  • First-stage scheduler circuitry assigns threads to channels.
  • Second-stage scheduler circuitry assigns operations from a channel to an execution pipeline based on operation decode.
  • Thread replacement circuitry deactivates a thread from a channel in response to an instruction cache miss for that thread.

Potential Applications

The technology can be applied in high-performance computing systems, embedded systems, and other applications where efficient instruction scheduling is crucial.

Problems Solved

1. Improved performance by efficiently managing instruction cache misses. 2. Enhanced utilization of execution pipelines by dynamically assigning operations based on cache misses.

Benefits

1. Increased system performance and throughput. 2. Reduced latency due to optimized instruction scheduling. 3. Enhanced resource utilization in multi-threaded systems.

Potential Commercial Applications

Optimized instruction scheduling technology can be utilized in data centers, supercomputers, and high-performance computing clusters to improve overall system efficiency and performance.

Possible Prior Art

Prior art in instruction scheduling techniques includes various methods for managing cache misses and optimizing instruction execution in multi-threaded systems. One example is the use of software-based techniques to handle cache misses efficiently.

Unanswered Questions

How does the technology handle priority between threads in case of multiple cache misses?

The patent abstract does not specify how the system prioritizes threads when multiple cache misses occur simultaneously.

What impact does the deactivation of a thread have on overall system performance?

The abstract does not elaborate on the potential consequences of deactivating a thread in response to an instruction cache miss.


Original Abstract Submitted

techniques are disclosed relating to instruction scheduling in the context of instruction cache misses. in some embodiments, first-stage scheduler circuitry is configured to assign threads to channels and second-stage scheduler circuitry is configured to assign an operation from a given channel to a given execution pipeline based on decode of an operation for that channel. in some embodiments, thread replacement circuitry is configured to, in response to an instruction cache miss for an operation of a first thread assigned to a first channel, deactivate the first thread from the first channel.