CZone: Efficient serverless container management for drastic memory reduction

SJTU researchers propose a dynamic MCPV model and CZone mechanism,slashing memory footprint by 90%.

In serverless computing, the Single-Container-Per-VM (SCPV) model ensures security but causes significant memory waste due to redundant guest OS instances. A team from Shanghai Jiao Tong University developed CZone, a framework that enables a dynamic Multi-Containers-Per-VM (MCPV) model with efficient memory hot-plug/unplug capabilities. By ensuring contiguous physical memory allocation for each container, CZone overcomes performance degradation and incomplete memory reclamation. Compared to standard SCPV, CZone reduces startup latency by 81.81% and memory footprint by 89.87%, dramatically increasing deployment density.

Experimental results show that CZone brings an 81.81% reduction in startup latency and an 89.87% reduction in memory footprint compared to current SCPV models.