Host Performance Boost Region Activation for Faster Memory Reads
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Solution Overview
Problem
Existing semiconductor memory systems lack efficient methods for managing Host Performance Boost (HPB) regions, leading to delays in data access and suboptimal performance.
Innovation Solution
A host interface driver determines whether a memory region is an HPB region based on its active level, read count, and activation thresholds, allowing for dynamic management of HPB regions and enabling the host to store a logical-to-physical (L2P) mapping table, which reduces access delays by obtaining physical addresses directly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the host accesses the L2P table stored in the memory system, then the data can be read, but access delays occur
Solution Approach 1:
The patent applies preliminary action by pre-fetching and storing the L2P mapping table data in the host's memory before it is actually needed for data access. The interface driver proactively manages HPB regions by predicting which L2P table portions will be needed and loading them into host memory in advance, thereby eliminating access delays when data read operations are performed.
Solution Approach 2:
The patent introduces an intermediary mechanism by using the host's memory as a buffer between the host and the memory system's L2P table. Instead of directly accessing the L2P table in the memory system during data operations, the interface driver mediates by maintaining a local copy in host memory, thus reducing direct access delays to the memory system.
2Adaptability or versatility
If the host dynamically manages HPB regions based on active level, then flexibility and efficiency are enhanced, but management complexity increases
Solution Approach 1:
The patent implements dynamics by making the HPB region management adaptive and dynamic rather than static. The interface driver continuously monitors the active level of different memory regions and dynamically adjusts which regions are designated as HPB regions. This allows the system to adapt to changing access patterns and optimize performance based on actual usage, with the activation threshold determining when regions transition between active and inactive HPB states.
Data Source
AI summary
The present disclosure relates to methods and devices for dynamic management of host performance boost (HPB) regions for memory systems. In one or more implementations of the present disclosure, an example host is provided. The host includes an interface and an interface driver. The interface is coupled to a memory system. The interface driver is configured to receive a read request from a file system to read data stored in a region associated with the memory system. The read request includes an active level of the region determined by the file system. The interface driver is further configured to determine whether the region is an HPB region to be activated based on the active level of the region.