DRAM Bank Assignment via Packet Segmentation
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Solution Overview
Problem
Network devices face challenges in optimizing memory utilization and reducing latency when handling variable-length packets, as existing DRAM technologies are limited by row cycle time and inefficient bank utilization.
Innovation Solution
A network storage system with an address adjusting module that segments packets into sections, overwrites bank IDs to distribute data across multiple banks in a cyclic and random or smart bank mode, optimizing interleaving and reducing latency by writing to adjacent banks, thereby improving memory utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data is written to multiple banks in round-robin fashion, then memory utilization is optimized, but latency increases due to row cycle time limitations
Solution Approach 1:
The patent segments packets into multiple sections and distributes them across different memory banks using bank ID overwriting. This segmentation allows parallel access to multiple banks, optimizing memory utilization while managing latency through intelligent bank selection and cyclic writing patterns.
2Productivity
If packets are segmented and distributed across multiple banks, then memory utilization improves, but system complexity increases
Solution Approach 1:
The address adjusting module automatically performs bank ID overwriting and cyclic bank selection without requiring complex external control logic. The system self-manages the distribution of packet sections across banks, reducing overall system complexity while maintaining high memory utilization.
3Speed
If round-robin bank allocation is used, then parallel access is optimized, but performance degrades when handling variable-length packets
Solution Approach 1:
The patent implements dynamic bank selection through the address adjusting module, which adaptively determines the starting bank ID and manages cyclic writing patterns. This dynamic approach allows the system to maintain optimized parallel access while flexibly adapting to variable-length packets and different traffic patterns.
Data Source
AI summary
A network storage system includes an address adjusting module that includes a segmented packet receiver module that receives M sections of a segmented packet, where M is an integer greater than one. A bank identification (ID) overwriter module overwrites a bank ID of at least one of the M sections of the packet with a control bank ID that is different than the bank ID.