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SubjectRe: Major network performance regression in 3.7
On Sat, Jan 05, 2013 at 05:21:16PM -0800, Eric Dumazet wrote:
> On Sun, 2013-01-06 at 01:50 +0100, Willy Tarreau wrote:
>
> > Yes, I've removed all zero counters in this short view for easier
> > reading (complete version appended at the end of this email). This
> > was after around 140 GB were transferred :
>
> OK I only wanted to make sure skb were not linearized in xmit.
>
> Could you try to disable CONFIG_COMPACTION ?

It's already disabled.

> ( This is the other thread mentioning this : "ppoll() stuck on POLLIN
> while TCP peer is sending" )

Ah interesting because these were some of the mm patches that I had
tried to revert.

Willy



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