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From: Ben Greear <greearb@candelatech.com>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Dave Jones <davej@redhat.com>,
	netdev@vger.kernel.org, stable@vger.kernel.org,
	fedora-list@list.zikzak.de, fedoralist@kotoulas.de
Subject: Re: latest -stable breaks Squid
Date: Wed, 03 May 2006 18:22:21 -0700	[thread overview]
Message-ID: <4459574D.6000303@candelatech.com> (raw)
In-Reply-To: <E1FbSM8-0002lx-00@gondolin.me.apana.org.au>

Herbert Xu wrote:
> Dave Jones <davej@redhat.com> wrote:
> 
>>So I pushed out an update for Fedora Core 5 users yesterday
>>that moved the kernel from 2.6.16.9 to 2.6.16.13.
>>I've since heard "My network performance is awful", and worse
>>yet, some apps seem broken as in the report below.
>>
>>Anyone have any ideas ?
> 
> 
> Try reverting the e1000 truesize patch.  Although the fix is 100%
> correct, it might have a negative impact on user-space apps with
> particuarly small rcvbuf settings.  Prior to the fix, due to the
> incorrect accounting we are essentially enlarging rcvbuf by as much
> as 10 times.

At least one of the reports shows problems with non e1000 NICs, so it's
probably not just the e1000 change.

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=190620

Ben

> 
> Cheers,


-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com


  reply	other threads:[~2006-05-04  1:22 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-03 21:19 latest -stable breaks Squid Dave Jones
2006-05-04  0:43 ` Dave Jones
2006-05-04  1:10 ` Herbert Xu
2006-05-04  1:22   ` Ben Greear [this message]
2006-05-04  1:59     ` Ian McDonald
2006-05-04 23:25       ` David S. Miller
2006-05-04 23:30         ` Herbert Xu
2006-05-04 23:47         ` Dave Jones
2006-05-05  8:49         ` [x86_64, NET] smp_rmb() in dst_destroy() seems very expensive, ditto in kfree_skb() Eric Dumazet
2006-05-05 10:06           ` Herbert Xu
2006-05-05 16:13           ` Very long list of struct dst_entry in dst_garbage_list Eric Dumazet
2006-05-05 17:05           ` [x86_64, NET] smp_rmb() in dst_destroy() seems very expensive, ditto in kfree_skb() Andi Kleen

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