Date: Wed, 18 Apr 2012 16:40:17 -0700 From: Sean Bruno <seanbru@yahoo-inc.com> To: Jack Vogel <jfvogel@gmail.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, Luigi Rizzo <rizzo@iet.unipi.it> Subject: Re: igb(4) Raising IGB_MAX_TXD ?? Message-ID: <1334792417.19343.11.camel@powernoodle-l7.corp.yahoo.com> In-Reply-To: <1334767746.3466.6.camel@powernoodle-l7.corp.yahoo.com> References: <1334705064.4486.23.camel@powernoodle-l7.corp.yahoo.com> <20120418072818.GA58850@onelab2.iet.unipi.it> <1334766438.3466.4.camel@powernoodle-l7.corp.yahoo.com> <CAFOYbcmJcUtN5DdvDg4L9aJYY8g5bz9z5whQSKLMEA-dAPcvOQ@mail.gmail.com> <1334767746.3466.6.camel@powernoodle-l7.corp.yahoo.com>
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On Wed, 2012-04-18 at 09:49 -0700, Sean Bruno wrote: > ok, good. that at least confirms that I correctly translated between > the driver code and documented specification. > > I will try 8k as a test for now and see how that runs. > > sean For now, I've patched one front end server with: /usr/src/sys/dev/e1000/if_igb.h:#define IGB_MAX_RXD 4096 * 4 And adjusted hw.igb.rxd: 8192 So far so good, been running in production for a couple of hours so the "smoke test" for this setting seems to be happy. We'll continue to adjust and test tomorrow during higher load conditions. Sean
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