Testing modern hash table designs in OVN and OVS

95 · Red Hat · Aug. 5, 2026, 3:20 a.m.
Summary
The blog post discusses an internship project focused on testing new hashmap designs to improve performance in OVN (Open Virtual Network) and OVS (Open vSwitch). It explores various hashmap algorithms, particularly Swiss tables, and presents performance comparisons with existing implementations. The author shares insights on the challenges of integrating new designs within existing structures, ultimately concluding that while Swiss tables show potential in specific scenarios, OVS’s current design remains efficient due to its intrinsic characteristics.