JuiceFS Distributed Cache Network Optimization Practice

In version 5.2, we implemented several optimizations for network transmission between distributed cache nodes, including:

​​- Zero-copy technology​​ to reduce system calls and data copying
​​- Multiplexing, small packet aggregation​​, and ​​SO_RCVLOWAT​​ (receive low watermark) socket configuration to address CPU utilization degradation caused by network fragmentation
​​- Optimized cyclic redundancy check (CRC) verification​​ to reduce CPU overhead

These optimizations significantly improve distributed cache performance, reduce system latency, and meet the demands of high concurrency and large-scale access.

Видео JuiceFS Distributed Cache Network Optimization Practice канала JuiceFS