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Date: Fri, 21 Mar 2014 11:49:26 -0300
Message-ID: <CAB2_NwCYtFD1hkYwO-aC+uyUGjU_UopExsc0Kq8afuefiSdGtA@mail.gmail.com>
Subject: Re: 9.2 ixgbe tx queue hang
From: Christopher Forgeron <csforgeron@gmail.com>
To: Markus Gebert <markus.gebert@hostpoint.ch>
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Cc: FreeBSD Net <freebsd-net@freebsd.org>, Rick Macklem <rmacklem@uoguelph.ca>,
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Ah, I understand the difficulties of testing production systems.

However, if you can make  a spare tester of the same hardware, that's
perfect - And you can generate all the load you need with benchmark
software like iometer, large NFS copies, or perhaps a small replica of your
network. Synthetic load is easier to control, and thus easier to reproduce
the issue and speed testing.  Heck, you may be able to do it all by looping
through your two ix adapters and never using an external client.

It's a bit of a pain to setup, but it's worth the effort imo.