netdev - Re: [PATCH 4/7] via-velocity: Implement NAPI support

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Message-Id: <20091120.093543.12488098.davem@davemloft.net>
Date:	Fri, 20 Nov 2009 09:35:43 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	simon.kagstrom@...insight.net
Cc:	netdev@...r.kernel.org, davej@...hat.com, shemminger@...tta.com,
	romieu@...zoreil.com
Subject: Re: [PATCH 4/7] via-velocity: Implement NAPI support

From: Simon Kagstrom <simon.kagstrom@...insight.net>
Date: Fri, 20 Nov 2009 16:12:23 +0100

> This patch adds NAPI support for VIA velocity. The new velocity_poll
> function also pairs tx/rx handling twice which improves perforamance on
> some workloads (e.g., netperf UDP_STREAM) significantly (that part is
> from the VIA driver).
> 
> Signed-off-by: Simon Kagstrom <simon.kagstrom@...insight.net>

With NAPI support present, your patch #3 should almost be not
necessary at all.

And if it is, make sure that you only use very low HW interrupt
mitigation settings.
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