Date: Fri, 6 Mar 2015 06:22:20 +0000 From: Wei Hu <weh@microsoft.com> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Network interrupt and NAPI in FreeBSD? Message-ID: <BY1PR0301MB0902C944E2287E0C6B5D8287BB1C0@BY1PR0301MB0902.namprd03.prod.outlook.com>
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Hi, I am working on network driver performance for Hyper-V. I noticed the netwo= rk interrupt rate on FreeBSD is significantly higher than Linux, in the sam= e Hyper-V environment. The iperf test also shows the FreeBSD performance is= not as good as Linux. Linux has NAPI built in which could avoid a lot of i= nterrupts on a heavy loaded system. I am wondering if FreeBSD also support = NAP in its network stack? Also any thought on the network performance in general? Thanks, Wei
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