Date: Mon, 25 Jun 2012 18:23:56 -0400 From: Robert Huff <roberthuff@rcn.com> To: "Christopher J. Ruwe" <cjr@cruwe.de> Cc: freebsd-questions@freebsd.org Subject: IPNAT seems to affect network performance? of jails on lo0 (10.0.0.0/24) - why? Message-ID: <20456.58620.356372.475182@jerusalem.litteratus.org> In-Reply-To: <20120625221711.7aec82b8@dijkstra.cruwe.de> References: <20120625221711.7aec82b8@dijkstra.cruwe.de>
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Christopher J. Ruwe writes: > On a KVM virtualized host, I run FreeBSD 8.3-RELEASE-p3 and some > qjails, 8.3-RELEASE. The jails are connected all via lo0 on > 10.0.0.0. > > While by the large working as expected, I have noticed one > pecularity I have failed to pinpoint: When launching processes > with some network interaction, like sshing into one of the jails > from the platform or launching emacs, the command spends ages ( > ~(1-2) minutes) idling? (nothing happens) before becoming > interactive. If the number is very close to 90 seconds, my first guess would be you have a DNS problem. Robert Huff
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