Dynamic Socket Receive Buffer Adjustment for Network Throughput Optimization
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Solution Overview
Problem
In advanced communication networks, particularly in 5G environments, the allocation and management of receive buffers in communication devices can lead to sub-optimal performance due to over-allocation or under-allocation, resulting in inefficient memory utilization and uneven performance across sessions, which affects overall throughput and user experience.
Innovation Solution
The implementation of processes to dynamically adjust the size of receive buffers based on real-time utilization thresholds, using formulas such as RWININIT, RWINMAX, and RWINMIN, to optimize buffer allocation and reclaim unused memory, thereby ensuring efficient memory use and reducing congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If receive buffer size is increased to handle high throughput traffic, then network capacity and throughput are improved, but memory utilization becomes inefficient and congestion increases
Solution Approach 1:
The patent implements dynamic adjustment of receive buffer size based on real-time network conditions and traffic patterns. The buffer size is no longer fixed but adapts continuously, allowing the system to optimize memory utilization while maintaining high throughput when needed. This resolves the contradiction by making the buffer size flexible rather than static.
Solution Approach 2:
The system changes the parameter of buffer size based on detected traffic conditions. When high throughput is required, the buffer size parameter is increased; when memory efficiency is prioritized, the parameter is reduced. This dynamic parameter adjustment allows the system to navigate between the two opposing requirements of high throughput and efficient memory usage.
2Loss of energy
If receive buffer size is decreased to optimize memory utilization, then memory efficiency is improved, but network congestion increases and throughput decreases
Solution Approach 1:
The patent implements a feedback mechanism that continuously monitors network traffic conditions, buffer utilization levels, and throughput performance. Based on this feedback, the system automatically adjusts buffer size to prevent both congestion and memory waste. The feedback loop ensures that buffer size is optimized in real-time rather than being statically set.
Solution Approach 2:
The system performs self-adjustment of buffer size without external intervention. The network device autonomously monitors its own performance metrics and modifies buffer allocation accordingly, allowing it to self-optimize between memory efficiency and throughput based on current operating conditions.
3Device complexity
If fixed buffer allocation is used to simplify management, then device complexity is reduced, but performance becomes uneven across different sessions
Solution Approach 1:
The patent segments the buffer management approach by allocating different buffer sizes to different sessions or traffic flows based on their specific requirements. Rather than using a single fixed buffer size for all traffic, the system divides buffer resources and manages them separately, allowing each session to receive appropriate buffer allocation while maintaining overall system simplicity.
Data Source
AI summary
A network device includes a network interface for establishing a communication session with another network device, a memory to store instructions, and a processor to execute the instructions. The processor may, for each time period during the communication session, adjust a size of a receive buffer of a socket. When the processor adjusts the size, the processor, if a utilization number of the receive buffer is greater than a high threshold: may determine a first new size for the receive buffer, and set a size of the receive buffer to the first new size. If the utilization number is less than a low threshold, the processor may determine a second new size for the receive buffer; and set the size of the receive buffer to the second new size.