Date: Wed, 04 Jun 2014 15:56:28 -0400 From: John Jasen <jjasen@gmail.com> To: freebsd-infiniband@freebsd.org Subject: Re: basic questions on using Mellanox IB/40GbE converged cards Message-ID: <538F79EC.6050900@gmail.com> In-Reply-To: <5384973F.8030304@gmail.com> References: <5384973F.8030304@gmail.com>
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On 05/27/2014 09:46 AM, John Jasen wrote:
> B) I also see "Using 5 TX rings" and "Using 2 RX rings" as the cards
> come up.
>
> Is this tunable under FreeBSD?
I imagine it would be good if these were tunable. From reading the
sysctl output on the cards (hw.mlxenNUM.stat.{rx|tx}_ringNUM), tx_ring0
and 1 are heavily used, sometimes 4, but 2 and 3 are empty. rx_ring0 and
1 are both heavily used.
I have not found a way to tune it, either via sysctl or loader.conf.
Thanks!
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