netdev - Re: [PATCH 0/9 Rev3] Implement batching skb API and support in IPoIB

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Message-ID: <20070824231100.GA30660@gondor.apana.org.au>
Date:	Sat, 25 Aug 2007 07:11:00 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	hadi@...erus.ca, billfink@...dspring.com, rick.jones2@...com,
	krkumar2@...ibm.com, gaagaan@...il.com,
	general@...ts.openfabrics.org, jagana@...ibm.com, jeff@...zik.org,
	johnpol@....mipt.ru, kaber@...sh.net, mcarlson@...adcom.com,
	mchan@...adcom.com, netdev@...r.kernel.org,
	peter.p.waskiewicz.jr@...el.com, rdreier@...co.com,
	Robert.Olsson@...a.slu.se, shemminger@...ux-foundation.org,
	sri@...ibm.com, tgraf@...g.ch, xma@...ibm.com
Subject: Re: [PATCH 0/9 Rev3] Implement batching skb API and support in IPoIB

On Fri, Aug 24, 2007 at 02:25:03PM -0700, David Miller wrote:
>
> My hunch is that even if in the non-TSO case the TX packets were all
> back to back in the cards TX ring, TSO still spits them out faster on
> the wire.

If this is the case then we should see an improvement by
disabling TSO and enabling GSO.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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