PERFORMANCE TUNING OF GIGABIT NETWORK INTERFACES

摘要

As Ethernets have attained gigabit speeds, it has become obvious that NIC and device driver designs that work well at slower speeds introduce performance problems at gigabit rates. In this paper we present a systematic evaluation of the effects of frame size and interrupt coalescing strategy on the performance of three benchmark workloads on a gigabit LAN. We show that the use of large frames and interrupt coalescing can produce significant performance benefits, but that the proper degree of interrupt coalescing is strongly dependent upon the characteristics of the workload.