netdev - Re: [PATCH] myr10ge: again fix lro_gen

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Message-ID: <20090428152047.GB7549@gondor.apana.org.au>
Date:	Tue, 28 Apr 2009 23:20:47 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Andrew Gallatin <gallatin@...i.com>
Cc:	David Miller <davem@...emloft.net>, brice@...i.com,
	sgruszka@...hat.com, netdev@...r.kernel.org
Subject: Re: [PATCH] myr10ge: again fix lro_gen_skb() alignment

On Tue, Apr 28, 2009 at 11:00:16AM -0400, Andrew Gallatin wrote:
>
> Its strange, I still consistently see about 1Gb/s better performance
> from LRO than GRO on this weak machine (6.5Gb/s LRO, 5.5Gb/s GRO)
> when binding everything to the same CPU. Mpstat -P 0 shows roughly
> 10% more time spent in "soft" when using GRO vs LRO:

Did you check the utilisation of the all the cores on the sender?

Cheers,
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