Dynamic Read-Ahead Buffer Size Adjustment for Data Processing
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Solution Overview
Problem
Electronic data processing systems face inefficiencies in read-ahead operations due to fixed data sizes, which can degrade performance for small data access while being inefficient for large data access, leading to suboptimal read performance and power consumption.
Innovation Solution
A method and system that dynamically adjust the size of read-ahead data based on a trigger signal, enabling or disabling it according to operating conditions such as external device connections or application executions, allowing for context-aware dynamic read-ahead schemes to optimize data prefetching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If fixed-size read-ahead data is used, then large data access performance is maintained, but small data access performance degrades
Solution Approach 1:
The patent implements dynamic adjustment of read-ahead data size based on trigger signals. The read-ahead buffer size is no longer fixed but changes according to operating conditions detected by trigger signals, allowing the system to adapt between large and small data access scenarios optimally
Solution Approach 2:
The patent changes the parameter of read-ahead data size dynamically. By modifying the buffer size parameter based on trigger signal conditions, the system optimizes read performance for different data access patterns without requiring separate systems for each scenario
2Productivity
If read-ahead operation is always enabled, then large data prefetching is improved, but power consumption increases
Solution Approach 1:
The patent employs periodic evaluation of trigger signals to determine when read-ahead operations should be performed. Instead of continuous read-ahead, the system periodically checks operating conditions and activates read-ahead only when beneficial, reducing unnecessary power consumption
Solution Approach 2:
The patent extracts the read-ahead operation from being always-active and makes it conditional. By using trigger signals to gate the read-ahead functionality, the system removes unnecessary read-ahead operations that would consume power without providing benefit
3Speed
If read-ahead data size is increased, then sequential read performance improves, but random access efficiency decreases
Solution Approach 1:
The patent dynamically adjusts read-ahead buffer size based on detected access patterns via trigger signals. When sequential access is detected, larger buffers are used to improve throughput; when random access is detected, smaller buffers reduce wasted time prefetching unnecessary data
Data Source
AI summary
A method of reading data in an electronic system includes detecting whether a trigger signal in the electronic system is enabled, the trigger signal being selectively enabled according to at least one operating condition of the electronic system, as a consequence of detecting that the trigger signal is enabled, changing a size of read-ahead data based on the enabled trigger signal, and performing a read operation based on a read command and the changed size of the read-ahead data.