Date: Tue, 14 Jul 2015 14:36:48 +0200 From: Sydney Meyer <syd.meyer@gmail.com> To: freebsd-xen@freebsd.org Subject: Networking under Xen Message-ID: <4E7B7075-4E0D-4EA7-9F5D-6D252CFBD487@gmail.com>
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Hello everybody, i have noticed some odd behaviour with networking under Xen with FreeBSD = 10 as a DomU. - IPv6 (TCP) bandwith drops from ~10 Gbit/s IPv4 to around 3 Gbit/s = IPv6. (measured with iperf) - Dropped/Stalled Connections with TCP Segmentation Offload and pf = enabled. - IPSEC-enabled Kernel TCP Performance drops from ~10 Gbit/s to ~200 = Mbit/s (iperf). I have observed this behaviour under Freebsd 10, 10.1 and 10 Stable. The Hypervisor is running Xen 4.4 with a Linux 3.16 Dom0. Any Suggestions?=
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