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From: Herbert Xu <herbert@gondor.apana.org.au>
To: Benjamin LaHaise <ben.lahaise@neterion.com>
Cc: David Miller <davem@davemloft.net>, netdev@vger.kernel.org
Subject: Re: [0/14] GRO: Lots of microoptimisations
Date: Wed, 17 Jun 2009 16:08:47 +0800	[thread overview]
Message-ID: <20090617080847.GA24504@gondor.apana.org.au> (raw)
In-Reply-To: <20090617080730.GA24410@gondor.apana.org.au>

On Wed, Jun 17, 2009 at 04:07:30PM +0800, Herbert Xu wrote:
> On Wed, Jun 17, 2009 at 02:38:56AM +1000, Herbert Xu wrote:
> > 
> > I'm hoping to get onto this tomorrow.  I think there's definitely
> > something broken because there's no way GRO should be slower than
> > GRO off.  Slightly slower than LRO perhaps but surely not worse than
> > not merging at all :)
> 
> OK, I'm seeing the opposite :)

Can you check your sender to see whether it's maxed out? That
can play havoc when benchmarking the receiver.

Also what are the raw numbers that you were getting?

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

  reply	other threads:[~2009-06-17  8:08 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-27  4:45 [0/14] GRO: Lots of microoptimisations Herbert Xu
2009-05-27  4:50 ` [PATCH 1/14] gro: Open-code frags copy in skb_gro_receive Herbert Xu
2009-05-27  4:50 ` [PATCH 2/14] gro: Inline skb_gro_header and cache frag0 virtual address Herbert Xu
2009-05-27  4:50 ` [PATCH 3/14] gro: Localise offset/headlen in skb_gro_offset Herbert Xu
2009-05-27  4:50 ` [PATCH 4/14] gro: Only use skb_gro_header for completely non-linear packets Herbert Xu
2009-05-27  4:50 ` [PATCH 5/14] tcp: Optimise GRO port comparisons Herbert Xu
2009-05-27  4:50 ` [PATCH 6/14] tcp: Remove unnecessary window comparisons for GRO Herbert Xu
2009-05-27  4:50 ` [PATCH 7/14] tcp: Optimise len/mss comparison Herbert Xu
2009-05-27  4:50 ` [PATCH 8/14] gro: Optimise length comparison in skb_gro_header Herbert Xu
2009-05-27  4:50 ` [PATCH 9/14] gro: Avoid unnecessary comparison after skb_gro_header Herbert Xu
2009-05-27  4:50 ` [PATCH 10/14] ipv4: Use 32-bit loads for ID and length in GRO Herbert Xu
2009-05-27 18:00   ` Andi Kleen
2009-05-27 21:26     ` Herbert Xu
2009-05-27  4:50 ` [PATCH 11/14] gro: Open-code final pskb_may_pull Herbert Xu
2009-05-27  4:50 ` [PATCH 12/14] gro: Nasty optimisations for page frags in skb_gro_receive Herbert Xu
2009-05-27  4:50 ` [PATCH 13/14] gro: Store shinfo in local variable " Herbert Xu
2009-05-27  4:50 ` [PATCH 14/14] tcp: Do not check flush when comparing options for GRO Herbert Xu
2009-05-27 10:42 ` [0/14] GRO: Lots of microoptimisations David Miller
2009-05-27 17:52 ` Benjamin LaHaise
2009-05-27 23:08   ` Herbert Xu
2009-05-28 15:21     ` Benjamin LaHaise
2009-05-29  9:28       ` Herbert Xu
2009-05-29  9:29         ` Herbert Xu
2009-05-29 16:23           ` Benjamin LaHaise
2009-06-10  5:44             ` Herbert Xu
2009-06-12 16:09               ` Benjamin LaHaise
2009-06-12 23:48                 ` David Miller
2009-06-16 16:35                   ` Benjamin LaHaise
2009-06-16 16:38                     ` Herbert Xu
2009-06-17  8:07                       ` Herbert Xu
2009-06-17  8:08                         ` Herbert Xu [this message]
2009-06-17 20:14                           ` Rick Jones

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